AM7_W911KB-17-R-0011_JBE041.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

PROJECT TITLE: JBE041 Add/Alter AWACS Alert Hangar, JBER, Alaska

PHASE 2 PROPOSAL DUE DATE IS UNCHANGED and remains April 6, 2017 at 2:00 PM Alaska Time. Proposals shall be submitted in accordance w ith Section 00 21 00, paragraph 1.9 Proposal Submittals.This amendment provides changes to the solicitation as indicated on the continuation pages of this document.

YOU ARE REQUIRED TO ACKNOWLEDGE RECEIPT OF THIS AMENDMENT ON THE REVERSE SIDE OF THE STANDARD FORM 1442.

Government POC for this action is Yolanda M. Ikner, 907-753-2553

1. CONTRACT ID CODE PAGE OF PAGES

1 3

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 15-Mar-2017

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W911KB-17-R-0011

X 9B. DATED (SEE ITEM 11)

20-Oct-2016

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

15-Mar-2017

CODE

U.S. ARMY ENGINEER DISTRICT, AK

CEPOA-CT (W911KB)

PO BOX 6898

JBER AK 99506-0898

W911KB 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W911KB-17-R-0011

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

The following items are applicable to this modification:

SF 30 CONTINUATION PAGE

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SECTION 00 11 00 - STANDARD FORM (SF) 1442

The required response date/time has not been extended.

SUMMARY OF CHANGES

a. The following drawings are substituted for the superseded drawings.

NONE.

b. The following revised documents are substituted for the superseded documents. The identifier “AM#7” appears before and after new and/or revised material, except as noted below.

Section 00 22 20, Para. 5.5.1.2, Summary Schedule – replacement page provided.

NOTE: Revisions within the following documents do not contain the above referenced identifiers.

Room Criteria Sheet Alert Facility

c. The following section is deleted.

d. The following documents are added.

4-211-01 January 17, 2017 Unified Facilities Criteria (UFC).

Sheet A-102 Areas of Renovation

e. The following revisions are incorporated.

f. Other:

W911KB-17-R-0011

SUMMARY OF CHANGES

SECTION 00 72 00 - CONTRACT CLAUSES

The following have been modified:

52.211-10 COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK (APR 1984)

The Contractor shall be required to (a) commence work under this contract within 10 calendar days after the date the Contractor receives the notice to proceed, (b) prosecute the work diligently, and (c) complete the entire work ready for use not later than 550 calendar days after the date the Contractor receives the notice to proceed. The time stated for completion shall include final cleanup of the premises.

AM #7… The successful offeror will receive access to the project site no later than September 18, 2017.

…AM #7

(End of clause)

(End of Summary of Changes)

Department Rm Code

Functional Areas

Purpose:

Door(s):

Window

Treatment:

Acoustical: Casework:

Equipment:

Notes:

Floor:

Base: Wall:

Ceiling: Wainscot:

Heating: Ventilation:

Plumbing

Fixtures:

Other:

Power: Notes:

Lighting:

Comm./Data: Security:

CATV

Intercom Zone

Access Control Type

Intrusion Detection

Video Monitoring

ProtectionSystem Type:

Mass Notification:

Fire Protection / Life Safety

Electronic Security

Plumbing:

Electrical / Telecommunication

UFC 3 520 01 guideline for receptacle outlets

UFC 3 530 01 guideline for the type of area outlet

Baseboard Hot Water unclass. Designer to evaluate and incorporate owner identified Squadron historical Alert lounge artifacts. Coordinate with 962 Squadron Leadership. Reference "Heritage Room" requirements in Squadron Operations & AMU Design Guide

Finishes

VCT at Kitchen and dining area Rubber base painted GWB

Scrubbable ACT in Kitchen and Dining 4' Laminate Wainscot and chair rail

Mechanical / Plumbing ft

Solid Core Wood with SST kickplates, cipher locks and closer

Window(s):

Provide operable exterior windows to meet naturalcooling ventilation requirements.

Thermal glazing and thermally broken frames, see narrative

Staff Qty: SqFt: 365 Height:

Architectural

962 - Alert Facility open area - Alert Facility Lounge Adjacencies: All Alert Operation Facilities

UFC 4-211-01

17 January 2017

UNIFIED FACILITIES CRITERIA (UFC)

AIRCRAFT

MAINTENANCE HANGARS

APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED

PRE-DECISIONAL; NOT FOR PUBLIC RELEASE

This Page Intentionally Left Blank

BURNS & McDONNELL

AIRCRAFT MAINTENANCE HANGARS

Any copyrighted material included in this UFC is identified at its point of use.

Use of the copyrighted material apart from this UFC requires the permission of the copyright holder.

U.S. ARMY CORPS OF ENGINEERS

NAVAL FACILITIES ENGINEERING COMMAND (Preparing Activity)

AIR FORCE CIVIL ENGINEER CENTER

Record of Changes (changes are indicated by \1\ ... /1/)

Change No. Date Location

This UFC supersedes UFC 4-211-01N, Change 3, dated 25 October 2004.

FOREWORD:

The Unified Facilities Criteria (UFC) system is prescribed by MIL-STD 3007 and provides planning, design, construction, sustainment, restoration, and modernization criteria, and applies to the Military Departments, the Defense Agencies, and the Department of Defense (DoD) Field Activities in accordance with USD (AT&L) Memorandum dated 29 May 2002. UFC will be used for all DoD projects and work for other customers where appropriate. All construction outside of the United States (US) is also governed by Status of Forces Agreements (SOFA), Host Nation Funded Construction Agreements (HNFA), and in some instances, Bilateral Infrastructure Agreements (BIA.) Therefore, the acquisition team must ensure compliance with the most stringent of the UFC, the SOFA, the HNFA, and the BIA, as applicable.

UFC are living documents and will be periodically reviewed, updated, and made available to users as part of the Services' responsibility for providing technical criteria for military construction. Headquarters, U.S. Army Corps of Engineers (HQUSACE), Naval Facilities Engineering Command (NAVFAC), and Air Force Civil Engineer Center (AFCEC) are responsible for administration of the UFC system. Defense agencies should contact the preparing Service for document interpretation and improvements. Technical content of UFC is the responsibility of the cognizant DoD working group. Recommended changes with supporting rationale should be sent to the respective Service proponent office by the following electronic form: Criteria Change Request. The form is also accessible from the Internet sites listed below.

UFC are effective upon issuance and are distributed only in electronic media from the following source:

Whole Building Design Guide web site http://dod.wbdg.org/.

Hard copies of UFC printed from electronic media should be checked against the current electronic version prior to use to ensure that they are current.

AUTHORIZED BY:

JAMES C. DALTON, P.E. JOSEPH E. GOTT, P.E.

Chief, Engineering and Construction Chief Engineer U.S. Army Corps of Engineers Naval Facilities Engineering Command

EDWIN H. OSHIBA, SES, DAF MICHAEL McANDREW Deputy Director of Civil Engineers Director, Facilities Investment and Management

DCS/Logistics, Engineering & Force Protection

Office of the Deputy Under Secretary of Defense (Installations and Environment) http://www.wbdg.org/pdfs/ufc_implementation.pdf http://www.wbdg.org/ccb/browse_cat.php?o=29&c=4 http://dod.wbdg.org/

NEW DOCUMENT SUMMARY SHEET

Document: UFC 4-211-01, Aircraft Maintenance Hangars

Superseding: UFC 4-211-01N, Aircraft Maintenance Hangars: Type I, Type II and Type III, with Change 3, dated 25 October 2004, NAVFAC Interim Technical Guidance (ITG 2010-01) - Maintenance Hangar Design and Planning Guidance for F35B or C, and Engineering Technical Letter (ETL) 02-15: Fire Protection Engineering Criteria New Aircraft Facilities, 3 December 2002

Description: This UFC provides criteria for planning and design of Aircraft Maintenance Hangars for the aircraft of the combined DoD United States Armed Forces.

Reasons for Document: This is a new Joint Service document. This new document represents another step in the Joint Services effort to bring uniformity to the planning, design and construction of military facilities. The UFC was developed to provide design requirements to accomplish the following:

Assist planners in understanding the facility requirements to ensure accurate space programs budgets.

Provide architects, engineers, and construction surveillance personnel with essential, minimum (min) requirements for the design and construction of Aircraft Maintenance Hangars.

Clarify the operational intent of the facility design.

Impact: The following will result from the publication of this UFC:

This UFC creates a single source for common DoD Aircraft Maintenance Hangar criteria and an accurate reference to individual Service-specific documents.

This UFC facilitates updates and revisions and promotes agreement and uniformity of design and construction between the Services.

Unification Issues: Non-unified content is mainly a result of operational differences among the Services and is addressed in the Service-specific chapters including:

The Navy included Functional Data Sheets (FDS) in this UFC. The Army keeps their Room Data Sheets with the Army Standard and the Air Force keeps these specific requirements with their Dynamic Prototypes.

The Army and Navy perform fuel cell operations in the Aircraft Maintenance Bay per operational guidelines. The Air Force has specific construction criteria for the design of fuel cell maintenance hangars.

Service differences in various subjects are noted in this UFC:

o Aircraft Clearance Tables o Design of the Aircraft Maintenance Bay slab on ground o Ordnance grounding o Fire suppression and detection o High intensity overhead radiant heaters in the Aircraft Maintenance Bay o Aircraft power distribution servicing aircraft o Aircraft Maintenance Bay floor finish options i

TABLE OF CONTENTS

CHAPTER 1 INTRODUCTION

1-1 PURPOSE AND SCOPE

1-1.1 Applicability

1-1.2 References

1-2 USERS OF THIS UFC

1-2.1 Architects and Engineers

1-2.2 Planning Personnel

1-2.3 Additional Users

1-3 GENERAL BUILDING REQUIREMENTS

1-3.1 Facility Requirements Document (FRD)

1-4 SCOPE OF FACILITY

1-4.1 Service Specific Information

CHAPTER 2 PLANNING AND LAYOUT

2-1 SITE ISSUES

2-1.1 Airport Operations Area (AOA) Safety

2-1.2 Construction Phasing Plan

2-1.3 Safety Clearances

2-1.4 Airport Operations Area Security

2-1.5 Integration of Security Measures

2-1.6 Solar Glare Hazard Analysis

2-2 FACILITY FUNCTIONS AND ADJACENCIES

2-2.1 Ground Level

2-2.2 Upper Level

2-2.3 Secure Spaces

2-3 MINIMUM AIRCRAFT MAINTENANCE BAY CLEARANCES

2-3.1 Horizontal Obstructions

2-3.2 Vertical Obstructions

2-3.3 Additional Clearances

2-3.4 Alternate Corner Configuration

2-4 NET TO GROSS AREA IN AIRCRAFT MAINTENANCE HANGARS

2-5 ACCESSIBILITY

ii

2-6 SUSTAINABLE DESIGN

2-7 HAZARDOUS MATERIALS

2-7.1 Background Information

2-7.2 Facility Design Requirements

CHAPTER 3 GENERAL HANGAR REQUIREMENTS

3-1 INTRODUCTION

3-2 CIVIL

3-2.1 Siting

3-2.2 Vehicular and Pedestrian Circulation

3-2.3 Airfield Pavements

3-2.4 Exterior Utility Services

3-3 ARCHITECTURAL

3-3.1 Construction, Life Safety, and Fire Fighter Access

3-3.2 Exterior Systems

3-3.3 Interior Systems

3-3.4 Finishes

3-3.5 Elevators

3-3.6 Bird Intrusion Prevention

3-4 STRUCTURAL

3-4.1 Foundations

3-4.2 Ground Floors

3-4.3 Superstructures

3-4.4 Main Structural Framing Materials

3-4.5 Secondary Structural Systems

3-4.6 Strength Requirements

3-4.7 Serviceability Requirements

3-4.8 Thermal Requirements

3-5 MECHANICAL

3-5.1 Heating, Ventilation and Air Conditioning (HVAC)

3-5.2 Heating

3-5.3 Ventilation

3-5.4 Air Conditioning

3-5.5 Plumbing iii

3-5.6 Water and Sewer

3-5.7 Industrial Oil/Water Waste

3-5.8 Process Systems

3-5.9 Energy Management System

3-6 FIRE PROTECTION AND LIFE SAFETY

3-6.1 General

3-6.2 Construction, Life Safety, and Fire Fighter Access

3-6.3 Fire Hydrants

3-6.4 Fire Water Supply

3-6.5 Surge Arrestors

3-6.6 Backflow Prevention

3-6.7 Fire Protection Equipment Rooms

3-6.8 Fire Suppression Pipe

3-6.9 Foam/Water Flow Control Valves

3-6.10 Foam/Water Proportioning System

3-6.11 Concentrate Storage Tank

3-6.12 Foam/Water Solution Piping

3-6.13 Test Header for Hi-Ex Foam Systems

3-6.14 Hose Demand

3-6.15 Overhead Sprinkler System for the Hangar Bay

3-6.16 AFFF Trench Nozzle System

3-6.17 Hi-Ex Foam System

3-6.18 Hydraulic Calculations

3-6.19 Fire Alarm and Releasing System

3-6.20 Testing

3-7 ELECTRICAL

3-7.1 Hazardous (Classified) Locations

3-7.2 Hangar Bay Door Power

3-7.3 Electric Door Track Heating

3-7.4 Renewable Energy Sources

3-7.5 Backup Power

3-7.6 Aircraft Power Distribution

3-7.7 Aircraft Power Systems iv

3-7.8 Grounding and Bonding

3-7.9 Lightning Protection

3-7.10 Lighting and Lighting Controls

3-7.11 Industrial Controls

3-7.12 Associated Mission Requirements

3-8 COMMUNICATIONS

3-8.1 Communication Systems Infrastructure

3-8.2 Public Address

3-8.3 Cable Television (CATV) Systems

3-8.4 Audio/Visual System

3-8.5 Closed Circuit Television (Non-Security) System

3-8.6 Radio and Satellite Systems

3-8.7 Electronic Security Systems

3-8.8 Associated Mission Requirements

3-9 OVERHEAD BRIDGE CRANES

3-9.1 Crane Operating Envelope

3-9.2 Motors and Controls

3-10 HANGAR DOORS

3-10.1 Vertical Lift Fabric Doors (VLFD)

3-10.2 Horizontal Sliding Steel Hangar Doors

3-10.3 Hangar Door Power

3-11 FLOOR AND TRENCH DRAINS

3-11.1 Floor Slope

3-11.2 Existing Apron Slope

3-11.3 Trench Drains

3-12 FUEL CELL MAINTENANCE

3-13 WASH BAY

3-13.1 General

3-13.2 Architecture

3-13.3 Plumbing

3-13.4 Electrical

3-13.5 Communications

3-14 FALL PREVENTION AND PROTECTION SYSTEMS

v

CHAPTER 4 EMERGING AIRCRAFT

4-1 AIRCRAFT SPECIFIC REQUIREMENTS

4-2 F-35 JOINT STRIKE FIGHTER

4-2.1 Architectural

4-2.2 Mechanical Systems

4-2.3 Electrical Systems

4-2.4 Communication Systems

4-3 UNMANNED AIRCRAFT SYSTEMS AND REMOTELY PILOTED

AIRCRAFT

CHAPTER 5 AIR FORCE SPECIFIC CRITERIA

5-1 INTRODUCTION

5-1.1 US Air Force Aircraft Maintenance Strategy

5-1.2 US Air Force Dynamic Prototypes for Aircraft Maintenance Hangars 111

5-2 CIVIL

5-2.1 Airfield Pavement Markings

5-2.2 Containment of Fuel Spill in Hangar Bay

5-3 ARCHITECTURAL

5-3.1 Internal Fire-Rated Separations

5-3.2 Aircraft Maintenance Bay Striping Requirements

5-4 STRUCTURAL

5-4.1 Aircraft Maintenance Bay - Slab on Ground Loading

5-5 MECHANICAL

5-5.1 Plumbing

5-6 FIRE PROTECTION AND LIFE SAFETY

5-6.1 General

5-6.2 Air Force Hangars Housing Navy/Marine Assets

5-6.3 Releasing Service Fire Alarm Control Unit (RSFACU)

5-6.4 Optical Flame Detection

5-6.5 Notification Devices

5-6.6 Protective and Hardened/Semi-Hardened Aircraft Shelters (PAS and

HAS)

5-6.7 Assessment of Existing Fire Protection Systems

5-7 ELECTRICAL

5-7.1 Aircraft Power Distribution vi

5-7.2 Aircraft 400 Hz Service Distribution

5-7.3 Aircraft 28VDC Service Distribution

5-7.4 Aircraft 270VDC Service Distribution

5-7.5 Grounding and Bonding

5-7.6 Aviation Obstruction Lighting

5-8 COMMUNICATIONS

5-8.1 CATV Systems

5-8.2 Audible Warning System

5-9 OVERHEAD BRIDGE CRANES

5-10 HANGAR DOORS

5-11 FLOORS AND TRENCH DRAINS

5-11.1 Trench Drains

5-12 FUEL CELL MAINTENANCE HANGARS

5-12.1 General

5-12.2 Permitted Operations

5-12.3 Definitions

5-12.4 Fire Protection, Life Safety, and Other Design Criteria

5-12.5 Architectural

5-12.6 Mechanical

5-12.7 Electrical

5-13 WASH BAY

CHAPTER 6 ARMY SPECIFIC CRITERIA

6-1 INTRODUCTION

6-1.1 US Army Aircraft Maintenance Strategy

6-1.2 Army Standard for Aircraft Maintenance Hangar (HGR) Complex

6-2 CIVIL

6-2.1 Airfield Pavement Markings

6-2.2 Containment of Fire Suppression Effluent

6-3 ARCHITECTURAL

6-3.1 Aircraft Maintenance Module Size

6-3.2 Coordinate Interior Systems

6-3.3 Aircraft Maintenance Bay and Heavy Maintenance Shop Floor Finishes vii

6-3.4 Aircraft Maintenance Bay Pavement Marking

6-4 STRUCTURAL

6-4.1 Aircraft Maintenance Bay - Slab on Ground Loading

6-5 MECHANICAL

6-5.1 Heating

6-5.2 Ventilation and Exhaust

6-5.3 Plumbing

6-6 FIRE PROTECTION AND LIFE SAFETY

6-6.1 General

6-6.2 Fire Pumps

6-6.3 Foam/Water Concentrate Proportioning Systems

6-6.4 Releasing Service Fire Alarm Control Unit (RSFACU)

6-6.5 Manual Foam Stop Stations

6-6.6 Optical Flame Detection Supervised Disconnect

6-6.7 Notification Devices

6-6.8 Supervision Devices

6-7 ELECTRICAL

6-7.1 Special Power

6-7.2 Grounding and Bonding

6-7.3 Electrical Equipment

6-8 COMMUNICATIONS

6-8.1 CATV Systems

6-9 OVERHEAD BRIDGE CRANES

6-10 HANGAR DOORS

6-11 FLOORS AND TRENCH DRAINS

6-11.1 Trench Drains

6-11.2 Trench Covers

6-12 FUEL CELL MAINTENANCE

6-13 WASH BAY

CHAPTER 7 NAVY SPECIFIC CRITERIA

7-1 INTRODUCTION

7-1.1 US Navy Aircraft Hangar Overview

7-2 CIVIL

viii

7-2.1 Hangar Safety Clearance

7-2.2 Airfield Pavements

7-2.3 Airfield Pavement Markings

7-2.4 AFFF Containment

7-3 ARCHITECTURAL

7-3.1 Types of Hangars

7-3.2 Aircraft Maintenance Bay Striping Requirements

7-4 STRUCTURAL

7-4.1 Aircraft Maintenance Bay - Slab on Ground Loading

7-5 MECHANICAL

7-5.1 Plumbing

7-5.2 HVAC

7-6 FIRE PROTECTION AND LIFE SAFETY

7-6.1 General

7-6.2 Tension Fabric Hangars

7-6.3 Concentrate Piping

7-6.4 Releasing Service Fire Alarm Control Unit (RSFACU)

7-7 ELECTRICAL

7-7.1 Special Power Systems

7-7.2 Power Service Points

7-7.3 O1/O2 Level Spaces

7-7.4 Grounding and Bonding

7-7.5 Obstruction Lighting

7-8 COMMUNICATIONS

7-8.1 Communication Systems Infrastructure

7-8.2 CATV Systems

7-8.3 3M Communications (Maintenance and Material Management)

7-8.4 Intercommunication System

7-8.5 ALIS Communication System

7-9 OVERHEAD BRIDGE CRANES

7-9.1 Hook Height

7-9.2 Hook Coverage

7-10 HANGAR DOORS

ix

7-11 FLOORS AND TRENCH DRAINS

7-11.1 Trench Drains

7-12 FUEL CELL MAINTENANCE

7-13 WASH BAY

7-14 NAVY FUNCTIONAL DATA SHEETS (FDS) AND SPACE TYPES

7-14.1 FDS Format

7-14.2 Applicability

7-14.3 Coordination With User And Airframe

7-14.4 Hangar Levels and Space Types

7-14.5 Functional Data Sheets

7-15 NAVY ADJACENCY DRAWINGS

7-15.1 Drawings

APPENDIX A: REFERENCES

A-1 REFERENCES:

APPENDIX B: GLOSSARY

B-1 GLOSSARY

APPENDIX C: BEST PRACTICES

C-1 GENERAL

C-1.1 ANTITERRORISM/FORCE PROTECTION (AT/FP)

C-1.2 SUSTAINABLE DESIGN

C-2 CIVIL

C-2.1 APPEARANCE

C-2.2 ENERGY CONCERNS

C-2.3 WINDS

C-2.4 SECURITY FENCING

C-2.5 LANDSCAPE PLANTING

C-2.6 UTILITIES

C-2.7 UNDERGROUND LINES

C-2.8 STORM DRAINAGE

C-3 ARCHITECTURAL

C-3.1 AIRCRAFT MAINTENANCE BAY AND MAINTENANCE SHOP FLOOR

FINISHES

C-3.1.1 Performance Requirements x

C-3.1.1.1 Proper Installation

C-3.1.1.2 Chemical Resistance

C-3.1.1.3 Impact Resistance

C-3.1.1.4 Abrasion Resistance

C-3.1.1.5 Reflectivity

C-3.1.1.6 Slip Resistance

C-3.1.1.7 Ease of Maintenance

C-3.1.1.8 Replacement Timeline

C-3.1.1.9 Life Cycle Cost

C-3.1.2 Floor Finish Options

C-3.1.2.1 Sealed Concrete

C-3.1.2.1.1 Performance

C-3.1.2.2 Polished Concrete

C-3.1.2.2.1 Performance

C-3.1.2.3 Dry Shake-on Hardener

C-3.1.2.3.1 Performance

C-3.1.2.4 Fuel-Resistant Resinous Flooring, 3-coat Systems

C-3.1.2.4.1 Performance

C-3.1.2.5 Fuel-Resistant Resinous Flooring, 5-coat Systems

C-3.1.2.5.1 Performance

C-3.1.3 Life Cycle Cost Analysis

C-3.2 CONSIDERATIONS FOR LARGE AIRCRAFT MAINTENANCE BAYS

C-3.3 INTERIOR DESIGN - FURNITURE AND EQUIPMENT

C-3.4 ACOUSTICS

C-3.4.1 Exterior Envelope

C-3.4.2 Interior

C-3.5 BIRD INTRUSION PREVENTION

C-3.5.1 Scaring Devices

C-3.5.2 Repellent Devices

C-3.5.2.1 Misting Systems

C-3.5.2.2 Electric Track

C-3.5.2.3 Bird Slope xi

C-3.5.2.4 Bird Spikes

C-3.5.3 Net Systems

C-4 STRUCTURAL

C-4.1 FOUNDATIONS

C-4.1.1 Geotechnical Investigations

C-4.2 FLOORS

C-4.2.1 Floor Coatings and Vapor Retarder/Barrier

C-4.3 SUPERSTRUCTURE

C-4.3.1 Static Determinacy

C-4.3.2 Construction and Erection

C-4.3.2.1 Ground Assembly with Heavy Lift

C-4.3.2.2 Aerial Assembly with Shoring Towers

C-4.3.3 Cantilevered Aircraft Maintenance Bay Framing System

C-4.3.3.1 Advantages

C-4.3.3.2 Disadvantages

C-4.3.3.3 Considerations

C-4.3.4 Header Truss Aircraft Maintenance Bay Framing System

C-4.3.4.1 Advantages

C-4.3.4.2 Disadvantages

C-4.3.4.3 Considerations

C-4.4 STRENGTH AND SERVICEABILITY REQUIREMENTS

C-4.4.1 Wind Loads

C-4.4.2 Seismic Loads

C-4.5 MAIN STRUCTURAL FRAMING MATERIALS

C-4.5.1 Hollow Steel Sections

C-4.6 SECONDARY STRUCTURAL SYSTEMS

C-4.6.1 Roof Systems

C-4.6.2 Coordinating the Structure with the Hangar Doors

C-4.6.3 Diaphragms

C-4.6.4 Wall Systems

C-5 MECHANICAL

C-5.1 PLUMBING

C-5.1.1 Water Supply to Emergency Shower/Eyewash Stations xii

C-5.2 HVAC

C-5.2.1 Overhead Radiant Heat Systems

C-5.2.2 In-floor Radiant Heat Systems

C-5.2.3 RPA Hangars

C-5.2.4 Avionics/Electrical Repair

C-5.2.5 Army Hangar Heating Systems

C-6 FIRE PROTECTION AND LIFE SAFETY

C-6.1 BELOW GRADE WATER SUPPLY PIPING

C-6.2 WELDED FIRE SUPPRESSION AND CONCENTRATE PIPING

C-6.3 DIVERTER VALVE LOCATION

C-6.4 FAN SHUTDOWN IN THE HANGAR BAY

C-6.5 AFFF TRENCH DRAIN LOCATION

C-6.6 ALTERNATE FOAM/WATER DISCHARGE NOTIFICATION

C-6.7 VOICE NOTIFICATION IN THE HANGAR BAY

C-7 ELECTRICAL

C-7.1 ELECTRIC DOOR TRACK HEATING SYSTEM

C-7.2 SERVICE POINT CONNECTION PEDESTALS

C-7.3 AIRCRAFT GROUNDING POINTS

C-8 COMMUNICATIONS

C-9 OVERHEAD BRIDGE CRANE

C-9.1.1 Overhead Bridge Cranes

C-10 HANGAR DOOR

C-10.1 HORIZONTAL ROLLING HANGAR DOORS

C-10.1.1 Horizontal Rolling Hangar Door Foundation

C-10.2 VERTICAL LIFT FABRIC DOORS (VLFD)

C-10.2.1 VLFD Structural Considerations

C-10.2.2 VLFD Fabric

C-10.3 VERTICAL LIFT CANOPY DOORS

C-10.4 OTHER HANGAR DOOR OPTIONS

C-11 FALL PREVENTION AND PROTECTION SYSTEMS

C-11.1 PERSONAL FALL ARREST SYSTEMS (PFAS)

C-11.2 DESCRIPTION OF HORIZONTAL LIFELINE (HLL) SYSTEM

C-11.3 DESCRIPTION OF RIGID HORIZONTAL RAIL (RHR) SYSTEMS

xiii

C-11.4 QUALITY CONTROL

C-11.5 ISSUES AND CONFLICTS BETWEEN CRANE OPERATION AND PFAS

C-11.5.1 If the HLL is installed above the Crane

C-11.5.2 If the HLL is installed below the Crane

C-11.6 ALTERNATE METHODS AND SYSTEMS

C-11.6.1 Work Stands

C-11.6.2 Portable Fall Arrest Systems

C-12 EMERGING AIRCRAFT

C-12.1 GENERAL

C-12.2 UNMANNED AIRCRAFT SYSTEMS

C-12.2.1 General

C-12.2.2 Similarities and Differences

C-12.2.3 Communications

C-12.2.4 Associated Facilities

APPENDIX D: QUESTIONNAIRE

D-1 MAINTENANCE AND OPERATIONS QUESTIONNAIRE FOR NEW

HANGAR DESIGN

D-1.1 CIVIL

D-1.2 ARCHITECTURAL

D-1.3 STRUCTURAL

D-1.4 MECHANICAL

D-1.5 FIRE PROTECTION

D-1.6 ELECTRICAL

D-1.7 COMMUNICATIONS

D-1.8 SECURITY

APPENDIX E: PHOTOGRAPHS

E-1 PHOTOGRAPHS

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FIGURES

Figure 2-1: Minimum Aircraft Maintenance Bay Clearances Figure 2-2: Alternate Corner Configuration Figure 2-3: Vertical Hangar Clearances

Figure 2-4: Vertical Hangar Clearances with Sloped Roofs Figure 2-5: Space Requirements for Vertical Lift Fabric Doors Figure 2-6: Space Requirements for Sliding Steel Hangar Doors Figure 3-1: Internal Fire Rated Separations Figure 3-1-1: Internal Fire Rated Separations

Figure 3-1-2: Internal Fire Rated Separations Figure 3-1-3: Internal Fire Rated Separations Figure 3-2: Air Force and Navy Hangar Bay Egress

Figure 3-3: Army Hangar Bay Egress Figure 3-4: Typical Aircraft Maintenance Bay Slab on Ground Cross-Section Figure 3-5: Concrete Slab on Ground Construction Joint

Figure 3-6: Concrete Slab on Ground Contraction Joint Figure 3-7: Concrete Slab on Ground Expansion Joint

Figure 3-8: Joint Sealant Details for Concrete Slabs on Ground Figure 3-9: Inductor and Concentrate Tank Installation Figure 3-10: Start Foam System Signage

Figure 3-11: Stop Foam System Signage Figure 3-12: Adjacent Space Electrical Hazardous Classifications

Figure 5-1: Aircraft Maintenance Bay Striping Requirements Figure 6-1: Typical Maintenance Bay Configuration

Figure 6-2: Maintenance Bay Pavement Markings Figure 6-3: Army Foam Pump Detail Figure 7-1: Aircraft Maintenance Bay Striping Requirements

Figure 7-2: Drive-Through Hangar Figure 7-3: Pull-In Hangar

Figure 7-4: OH/O1 Level Adjacency Diagram Figure 7-5: O2 Level Adjacency Diagram Figure 7-6: Type I & II OH/O1 Level Hangar Adjacency Diagram

Figure 7-7: Type I (F-35) O2 Level Adjacency Diagram Figure 7-8: Type III OH/O1 Hangar Adjacency Diagram Figure 7-9: Section Showing Header Truss Figure 7-10: Section Showing Cantilever Truss Figure 7-11: Section through Type II Hangar Crane Configuration and Vertical

Clearances Figure C-1: Considerations for Aircraft Maintenance Bays for Large Aircraft Figure C-2: Considerations for Aircraft Maintenance Bays for Large Aircraft Figure E-1: Maintenance Hangar Including Two Hangar Bays and Associated Shops

Figure E-2: Maintenance Hangar Including Attached Command Mission Figure E-3: Maintenance Hangar with Associated Shops and Office on Both Sides of the Hangar Figure E-4: Integrated UAS/RPA Hangar with Maintenance and Mission Spaces ... 260 xv

Figure E-5: Large Body Aircraft Hangar with Attached Shops and Office Space and Sliding Doors

Figure E-6: Helicopter Hangar Bay with Sliding Doors, Sliding Door Tracks and Overhead Cranes

Figure E-7: Helicopter Hangar Bay with Converters, Pedestals and Safety Lane

Figure E-8: UAS/RPA Casket in Hangar Bay Ready for Assembly Figure E-9: Overhead Bridge Crane with Cabled Controls within Hangar Bay Figure E-10: Hangar Bay with Bridge Cranes and Fall Arrest Figure E-11: Overhead Bridge Crane within a Shop Figure E-12: Sliding Hangar Door Tracks

Figure E-13: Vertical Lift Fabric Door with Mullions and Multiple Sections and Fall Arrest System

Figure E-14: Vertical Lift Fabric Door Mullion and Mullion Pit

Figure E-15: Floor Mounted 400 Hz Converter with Permanently Attached Cables ... 270 Figure E-16: Permanent Pedestals with 400 Hz, 120V, Communications and

Compressed Air

Figure E-17: Example of Fire Pan, for Acceptance Test of Optical

TABLES

Table 2-1: Minimum Aircraft Maintenance Bay Clearances

Table 3-1: Aircraft Maintenance Bay Slab on Ground Joint Spacing Table 3-2: Concrete Slab on Ground Dowel Size and Spacing

Table 3-3: FACU Functional Matrix Table 3-4: Sliding Hangar Door Pockets

Table 5-1: Air Force RSFACU Functional Matrix Table 6-1: Army RSFACU Functional Matrix Table 6-2: Aviation Platform Ground Service Baseline Requirements

Table 7-1: Standard Hangar Bay Module Dimensions and Crane Capacities* Table 7-2: Navy RSFACU Functional Matrix

Table 7-3: Hangar Space Table Table 7-4: Hangar Bay (OH) Table 7-5: Air Frames (Shop)

Table 7-6: Aviation Ordnance (Shop) Table 7-7: Avionics Space (Shop) Table 7-8: Corrosion Control/Coating Shop Table 7-9: Detachment (Shop) Table 7-10: Flight Gear/Paraloft (Shop)

Table 7-11: Flight Line (Shop) Table 7-12: Night Vision Goggles (NVG) Storage (Shop) Table 7-13: Phase Crew (Shop) Table 7-14: Power Plant (Shop)

Table 7-15: Seat Shop (Shop) Table 7-16: Tool Room (Shop) Table 7-17: Division Office Table 7-18: Maintenance Control Table 7-19: Hangar Bay (OH) (F-35 Only) xvi

Table 7-20: Seat and Canopy Maintenance/AME Maintenance (Shop) (F-35 Only) . 188 Table 7-21: Airframe Hydraulic Clean Room (Shop) (MV-22 Only)

CHAPTER 1 INTRODUCTION

1-1 PURPOSE AND SCOPE

This UFC provides requirements for Aircraft Maintenance Hangars. This UFC is not intended as a substitution for thorough review during design by individual Program Managers and Operations Staff in the appropriate Service.

This UFC is organized with general requirements and Service-specific requirements.

Apply Chapters 1, 2, 3, 4 and Appendices to all Services. Additionally apply Chapters 5, 6, and 7 to Air Force, Army, and Navy respectively for Service-specific requirements.

1-1.1 Applicability

The information in this UFC applies to the design of all new construction projects, to include additions, alterations, and renovation projects within the United States and its territories and possessions and outside of the United States and its territories and possessions.

1-1.2 References

APPENDIX A: REFERENCES contains a list of references used in this UFC.

1-2 USERS OF THIS UFC

This UFC is intended as a source of basic architectural and engineering information for all individuals involved in the planning, design and construction of Aircraft Maintenance Hangars.

Specific users of the UFC include the following:

1-2.1 Architects and Engineers

Architects and Engineers (A/E) who will provide design services under the direction of the individual Service design agencies.

1-2.2 Planning Personnel

Planning personnel will use this UFC for programming new or replacement facilities, pre-design planning, or assessing the extent of improvements required in an existing Aircraft Maintenance Hangar in order to achieve the standard established herein.

1-2.3 Additional Users

Additional users may include entities for operational or other purposes. The respective users should refer to this UFC from their own policy documents as appropriate and may include:

Headquarters Staff and Field Operating Agencies, Major Command (MAJCOM) Staff/Regions, Base, Installation and Garrison Commanders, Installation Facilities Management, Installation Technical Proponents.

1-3 GENERAL BUILDING REQUIREMENTS

Comply with UFC 1-200-01. UFC 1-200-01 provides applicability of model building codes and government unique criteria for typical design disciplines and building systems, as well as for accessibility, antiterrorism, security, high performance and sustainability requirements, and safety. Use this UFC in addition to UFC 1-200-01 and government criteria referenced therein.

1-3.1 Facility Requirements Document (FRD)

The airframe manufacturer's FRD or equivalent document is an integral requirement of hangar design that contains additional airframe specific facilities requirements that must be considered and satisfied in addition to this UFC.

FRDs are typically authored by the airframe manufacturer and contain many specific details, are often quite voluminous and difficult to obtain. The FRD may have additional technical facility requirements, special spaces, special clearances, special maintenance procedures, systems, data or other items that may impact the hangar design. This UFC is not a substitute for the FRD of the design airframe(s) being hangared.

1-4 SCOPE OF FACILITY

This UFC specifies requirements for aircraft hangars that support all types of fixed wing, rotary wing, and hybrid aircraft of the Army, Air Force, Navy, Marine Corps, and Reserves. The UFC additionally applies to hangars for select Unmanned Aircraft Systems (UAS)/Remotely Piloted Aircraft (RPA).

This UFC focuses primarily on Aircraft Maintenance Hangars. However, it applies to all hangars including other, specialized, hangar types. Additional study is required to identify unique requirements, functional areas or systems based on mission or aircraft.

Some specialized hangars include but are not limited to depot, transient, special operations, research, fuel-cell maintenance, and prototype hangars. For aircraft corrosion control and paint facility hangar design requirements, refer to UFC 4-211-02 and this UFC where incorporated by specific reference. Maintenance hangars support ongoing day to day functions of the aviation squadron, wing or brigade and facilitate routine, preventative, basic aircraft upkeep to sustain aircraft operations. Maintenance activities are generally short-term and minor in nature compared to those that might be performed in more intensive intermediate maintenance level or depot-level hangars that facilitate extensive breakdown and rebuilding of components. Maintenance hangars are typically characterized by large obstruction-free hangar bays surrounded by various configurations of supporting trade shop and administrative spaces. Extra value has been placed on facility safety, continuity of mission operations, flexibility, maximizing hangar bay utilization, and minimizing life-cycle costs of materials and systems. For these reasons, the UFC limits options on certain requirements, ranging from structural systems and hangar doors, to proven systems for the expected large-scale aircraft and operations common in military maintenance hangars. Exemptions to certain requirements can be submitted for consideration where supported and warranted by the mission requirements.

1-4.1 Service Specific Information

Refer to Chapters 5, 6, and 7 for Air Force, Army, and Navy, respectively, for Service-specific information.

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CHAPTER 2 PLANNING AND LAYOUT

2-1 SITE ISSUES

Coordinate the design and construction of Aircraft Maintenance Hangars adjacent to an airfield with airfield operations, civil engineering master planning, existing Air Traffic control Tower site lines, and the Federal Aviation Administration (FAA) (when applicable) to confirm the new facility will not conflict with airspace, ground operations or required unobstructed clearances. Review safety and security prior to commencement of design or construction. Refer to UFC 3-260-01 for further requirements.

2-1.1 Airport Operations Area (AOA) Safety

The planning and design of an Aircraft Maintenance Hangar will emphasize AOA safety.

AOA safety includes unobstructed airspace and safe and efficient ground movements per UFC 3-260-01.

The Airport Operations Area is any area of an airport, installation, or station used or intended to be used for the landing, takeoff or surface maneuvering of aircraft. The AOA includes such paved areas or unpaved areas that are used or intended to be used for the unobstructed movement of aircraft in addition to its associated runway, taxiway or aprons.

2-1.2 Construction Phasing Plan

Prior to Construction, provide notification of construction by issuing notices as required by Federal Aviation Administration Advisory Circular (FAAAC) 150/5200-28, latest edition. Include a construction phasing plan in the contract documents. The purpose of a phasing plan is to establish guidelines and constraints for the contractor to follow during construction. Submit the construction phasing plan for coordination and review at the concept stage and all design stages. Coordinate the plan with airfield management, airfield operations, communications, ground and flight safety, environmental, emergency services, security forces, and logistics. Include the extent of fencing required to keep personnel out of the construction area and to keep Foreign Object Damage (FOD) off the airfield. Include crane restrictions, required FAA permits, flight line access requirements for personnel and equipment, hours of operations within the AOA, haul routes for materials (especially concrete trucks), stockpile locations, details for closing portions of the airfield, and airfield barricades. Refer to UFC 3-260-01 ABBREVIATIONS Section 14 for further guidance on phasing and operational safety plans.

2-1.3 Safety Clearances

Apply all horizontal and vertical operational safety clearances to Aircraft Maintenance Hangars that dictate the general arrangement and sizing of hangars and their relationship to airfield and airside facilities. There are, however, general considerations that apply in most cases, such as:

Adherence to required unobstructed clear zones

Adherence to standards in support of safety in aircraft operations

Non-interference with line of sight or other operational restrictions

Use of existing facilities

Flexibility in being able to accommodate changes in aircraft types or missions

Efficiency in ground access

Priority accorded aeronautical activities where available land is limited

Security

DoD and Military Service-level explosive safety quantity distances when applicable

2-1.4 Airport Operations Area Security

Regulatory requirements for security of assets can have a significant impact on the planning and layout associated with aircraft, as well as the aircraft themselves, requiring varying types and levels of protection. Operational security of the airfield is also a consideration. Collocate maintenance buildings to inhibit or prevent unauthorized access and enhance facility and airfield security.

2-1.5 Integration of Security Measures

Integrate protective features such as barriers, fences, lighting, access control, intrusion detection, and assessment into the site and facility planning and design process to minimize problems with aircraft operations and safety requirements. Include the protective measures in the design, based on risk and threat analyses, with an appropriate level of protection, and comply with security-related requirements.

2-1.6 Solar Glare Hazard Analysis

If any new photovoltaic and glass-enclosed solar-hot water systems are proposed, provide solar glare hazard analysis as required by FAA policy. Refer to Interim Policy, FAA Review of Solar Energy System Projects on Federally Obligated Airports. FAA policy on Glint/Glare Impacts on DoD Aviation Operations requires Glint/Glare analysis of photovoltaic and glass-enclosed solar-hot water systems that are on military airfields and within 2 miles of military airfield control towers, active runways thresholds, and helicopter landing zones. FAA policy requires the use of FAA's Solar Glare Hazard Analysis Tool (SGHAT) for Glint/Glare analysis found on website:

https://share.sandia.gov/phlux This analysis is required for eliminating the potential for ocular impact to pilots and/or air traffic control facilities due to glare from solar photovoltaic (PV) and solar hot water (SHW) systems on airports.

To prevent mirror-like reflections from building surfaces to aircraft in flight, provide roofs and other external surfaces with a specular reflectance compatible with the location of the building on the airfield. If the building is located so that glare is an operational hazard, provide surfaces of the building with a light reflectance of not more than 10, measured at an angle of 85 degrees in accordance with American Society of Testing and Materials (ASTM) D523, Specular Gloss at critical surfaces of the building.

2-1.6.1 Airfield Manager Approval for Solar Energy System Projects

Provide the results of the SGHAT to the Airfield Manager for evaluation of any possible adverse effects to the airfield daily operations prior to approving new photovoltaic and glass-enclosed solar-hot water systems on the military airport.

2-2 FACILITY FUNCTIONS AND ADJACENCIES

Maintenance hangars are required to provide weather-protected shelter for the servicing and repair of aircraft at the organizational level.

2-2.1 Ground Level

The following spaces are typically provided on the ground level of a two story hangar.

Locate these rooms with consideration of the access requirements described in each Paragraph, regardless of the number of levels in the hangar.

2-2.1.1 Aircraft Maintenance Bay

Aircraft Maintenance Bays are sized to accommodate aircraft as well as the maintenance activities around the aircraft. The Aircraft Maintenance Bays require direct access to a component of the flight line, preferably a peripheral taxi or tow-way.

2-2.1.2 Maintenance Administration

Maintenance administration spaces include maintenance control, quality control, rooms to access maintenance records and manuals on computers, as well as office space for manufacturers' representative personnel. Most of these spaces need direct or nearly direct access to the Aircraft Maintenance Bay.

2-2.1.3 Heavy Maintenance Shops

These industrial spaces house shops for maintaining large heavy parts and equipment such as engines, sheet metal and composites. All of these spaces require direct or nearly direct access to the Aircraft Maintenance Bay. Provide an overhead door or a pair of personnel doors to the Aircraft Maintenance Bay for movement of large equipment.

2-2.1.4 Light Maintenance Shops

These spaces house shops for maintaining parts from the aircraft such as electronics, avionics, or weapons systems. Direct access to the Aircraft Maintenance Bay is preferred but not required because these parts are more portable than those in the heavy maintenance shops.

2-2.1.5 Storage

Ground level storage includes spaces for storing and issuing parts and tools for the maintenance of the aircraft. Direct access to both the Aircraft Maintenance Bay and to the exterior are preferred, but direct access to the exterior is more important to allow for deliveries.

2-2.1.6 Personnel Support

Break rooms, restrooms, showers and locker rooms should be located to support ground level personnel.

2-2.1.7 Building Support

Building support spaces includes areas used for maintaining the building and areas that house building utilities. Facility maintenance rooms have a low priority for adjacency, but they are typically located near the utility rooms. Utility spaces include mechanical rooms, compressor rooms, electrical rooms, communication rooms, fire protection rooms, and janitor closets. Provide major utility rooms with direct exterior access and locate them close to exterior equipment related to the space. Communication rooms typically require interior access. Provide separate general, secure and unit-managed communications rooms. Confirm access with the installation. Account for equipment and access space for maintaining equipment in Utility space sizing. Consider user access for user-owned and operated equipment such as a compressor that may be in a shared utility room. Mechanical rooms in hangars are typically larger than in other types of buildings because they often contain equipment supporting maintenance operations, such as air compressors. Fire Protection Rooms in hangars are typically larger than in other types of buildings due to foam systems required to protect Aircraft Maintenance Bays. Provide a janitor closet near the restrooms.

2-2.2 Upper Level

The following spaces are typically provided on the upper level of a two story hangar.

Locate these rooms with consideration of the access requirements described in each Paragraph, regardless of the number of levels in the hangar.

2-2.2.1 Operational Administration

Unit administration offices, conference rooms and training rooms may be remote from the Aircraft Maintenance Bay and are typically located on the upper level. Spaces in this category are often grouped based on the level of security required for the use.

2-2.2.2 Personnel Support

Break rooms, restrooms, locker rooms should be located to support upper level personnel.

2-2.2.3 Building Support

These spaces are often satellite rooms associated with ground level mechanical, electrical and communication rooms. Provide a janitor closet near the restrooms.

2-2.3 Secure Spaces

Many hangars require some level of physical security for the protection of assets such as classified materials, Sensitive Compartmented Information (SCI) or Special Access Program (SAP) information. The requirements for the protection of assets is defined in DoD and Service regulatory guidance or policy. The security requirements must be coordinated with the supported command and their security representatives to ensure the configuration will meet their operational (compartmented) and the regulatory and policy based security requirements. When a hangar has more than one secure space, serious consideration should be given to consolidate multiple secure spaces. Any consolidation will reduce the initial and sustainment cost for infrastructure, electronic security systems and the associated accrediting requirements. When required, integrate the physical security protective measures into the site, building, room(s), or area(s) as applicable.

2-3 MINIMUM AIRCRAFT MAINTENANCE BAY CLEARANCES

Provide the minimum required clearances between the aircraft and adjacent horizontal obstructions, vertical obstructions, and other aircraft in designing the Aircraft Maintenance Bay as indicated in Table 2-1: Minimum Aircraft Maintenance Bay Clearances and Figure 2-1: Minimum Aircraft Maintenance Bay Clearances, Figure 2-2:

Alternate Corner Configuration, Figure 2-3: Vertical Hangar Clearances, Figure 2-4:

Vertical Hangar Clearances with Sloped Roofs. These clearances are essential to ensure aircraft are protected from structural damage as they are moving in and out of the hangar and to allow personnel and equipment to safely and efficiently maneuver around the aircraft during aircraft maintenance activities.

2-3.1 Horizontal Obstructions

The nearest horizontal fixed obstructions include but are not limited to the inside face of the wall, faces and jambs of hangar doors, structural columns or bracing, bollards, liner panels, mechanical equipment or ductwork, plumbing equipment, valves and pipes, electrical equipment such as power transformers or other permanent physical items.

Fixed obstructions do not include furniture, tables, desks, benches, cabinets, tools, parts, carts or other movable objects. Clearances from rotary blade aircraft are from rotor blade arcs, except where specifically noted otherwise in Table 2-1: Minimum Aircraft Maintenance Bay Clearances.

2-3.2 Vertical Obstructions

The nearest fixed or mobile overhead obstructions include but are not limited to structure, draft curtains, mechanical, electrical, and plumbing equipment such as lighting, fans, heaters, ductwork, and fire protection systems, crane rails and crane bridges. Crane hoists and hooks are excluded if they can be maneuvered around tall parts of the aircraft and can be stored out of the way during aircraft movement.

2-3.3 Additional Clearances

Specific airframe or Service requirements may increase the minimum clearances required by Table 2-1: Minimum Aircraft Maintenance Bay Clearances to allow performance of certain maintenance operations. Coordinate with the maintenance unit staff to determine if additional space is required to maintain the aircraft. Provide additional clearances where required by an approved document such as the design aircraft's Facility Requirements Document (FRD) or a Service-specific standard design, defined Service hangar type, or other approved criteria. For example, the FRD may require additional space aft of the aircraft to remove the engine, or additional space above an aircraft to provide the crane hook height to perform maintenance operations such as pulling the rotor shaft out of a helicopter or maintaining the radar dome on an Airborne Warning and Control System (AWACS) aircraft. Jacking the design aircraft will reduce the overhead clearance below requirements in this UFC. Confirm jacking the design aircraft in the parking position does not require additional height to avoid conflict with an overhead obstruction. Minimum hook height is to the saddle of the hook.

Maximize the unobstructed space in Aircraft Maintenance Bays where designs allow for exceeding the minimum clearances determined from this section. Exceeding minimum requirements for bay widths and depths, door heights, clear heights or crane hook heights may provide the flexibility to accommodate a future aircraft type or a revised aircraft parking layout without violating required clearances. For example, if for some good reason the structure of an Aircraft Maintenance Bay roof is higher than necessary to meet the minimum vertical clearance requirements, locate MEP systems and cranes as high as possible rather than dropping them to the minimum clear height allowed.

2-3.4 Alternate Corner Configuration

The concept indicated in Figure 2-2: Alternate Corner Configuration is acceptable for Aircraft Maintenance Hangars of any size where it may be desirable to re-distribute large corner areas. The clearances indicated by Table 2-1: Minimum Aircraft Maintenance Bay Clearances apply to all hangars, even if using the alternate corner configuration. Where used in hangars with multiple aircraft parking positions the alternate corner configuration is only acceptable at the end bays. Do not reduce the square footage of the Aircraft Maintenance Bay. Distribute the area gained by the corner configuration within the Aircraft Maintenance Bay.

This UFC allows encroaching on the space in front of the wings of aircraft with walls and other fixed obstructions. However, it is the designer's responsibility to confirm operational clearance requirements around the aircraft if introducing obstructions in front of the wings of aircraft. Consult the users for any specific airframe or Service requirements that limit the location of an alternative sidewall configuration.