210 GYRO SPEC UPDATED 15 JUN 2011.pdf
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210 Gyrocompass Statement of Work
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USCG WMEC 210 Class Cutters
SPECIFICATION FOR GYROCOMPASS TCTO INSTALLATION
Developed By: Joanna M Skaredoff
(Rev-0, 15 June 2011)
USCG WMEC 210 CLASS CUTTERS GYROCOMPASS TCTO INSTALLATION 2012
ii (Rev-0)
TABLE OF CONTENTS
Revisions Record ....................................................................................................................................... iii Consolidated List of References ................................................................................................................ iv Consolidated List of Government-furnished Property ............................................................................... vi Consolidated List of Critical Inspection Items ......................................................................................... vii Principal Characteristics .......................................................................................................................... viii General Requirements WORK ITEM 1: Gyrocompass, Upgrade iii (Rev-0)
Revisions Record This page is used to record specification revisions, which may have occurred subsequent to a Revision 0 (Rev-0) package. Information listed is intended to provide contractors and field unit personnel a means to ensure all the current specification revision pages are present when reviewing or utilizing this specification package.
DATE REV# WORK
ITEM#
CHANGES MADE
NOTE : All work item and paragraph numbers listed above for a given revision correspond to same numbers in the previous revision. This revised specification is self-contained with all of the above listed changes incorporated.
iv (Rev-0)
Consolidated List of References The below-listed documents form a part of this specification to the extent specified herein. Approval/publication dates or revision dates/numbers are also identified, to ensure that same document versions are used at time of specification writing and during contract execution.
All Coast Guard drawings, technical publications, and standard specifications will be provided to contractors by the Coast Guard at an appropriate time, or upon request, free or charge. Other Government documents may be accessed – free of charge – as follows:
• MIL/DOD/CID Specifications: http://www.assistdocs.com/search/search_basic.cfm
• Commandant Instruction Manuals: http://www.uscg.mil/directives/default.asp
• Public Laws, Code of Federal Regulations, U.S Codes, and other Federal Government laws::
www.gpoaccess.gov
The Government is aware of the following internet web links where contractors may procure commercial specifications:
• American Welding Society (AWS): http://www.awspubs.com/index.php
• ANSI, ASTM, IEEEE, NFPA, ASME, SAE Standards: http://www.techstreet.com/
• NFPA: http://www.nfpa.org
• SSPC Standards and pictorial guides: http://shopping.netsuite.com/sspcmarketplace
COAST GUARD DRAWINGS
Coast Guard Drawing 618 WMEC 184-003, Rev H , I .C. & Gyro Rm Elec. Equip. Foundation Details Coast Guard Drawing 618 WMEC 401-001, Rev R , I.C. & Gryo Room General Arrangement Coast Guard Drawing 618 WMEC 411-001, Rev F, SCCS System Block Wiring Diagram and Installation Details Coast Guard Drawing 618 WMEC 426-001, Rev N , Major Maintenance Availability Gryo Compass Block Wiring Diagram Ckt “LC” Coast Guard Drawing 618 WMEC 426-002, Rev R , Gyro Compass Circuit “LC” Wiring Data (COED) Coast Guard Drawing 618 WMEC 426-003, Rev -, MK27F Gyro Compass Installation Design Plan Coast Guard Drawing 618 WMEC 426-004, Rev -, MK27F Gyro Compass Installation Wiring Data (COED) Coast Guard Drawing 618 WMEC 441-001, Rev AG, Rad Comms Blk Wrg Diag-Internal Rack Wrg Diag & Rack Details Coast Guard Drawing 618 WMEC 441-007, Rev D , Inmarsat B System Block Wiring Diagram Coast Guard Drawing 618 WMEC 451-001, Rev B, AN /SPS-73(V)6 SSR & AN/SPS-69 Radar Installation Modifications Coast Guard Drawing 627 WMEC 184-003, Rev D , I.C. & Gyro Rm Elec. Equip. Foundation Details Coast Guard Drawing 627 WMEC 401-001, Rev P , General Arrangement of I.C. and Gyro Room Coast Guard Drawing 627 WMEC 426-001, Rev J , MK 27 Mod 1 Gyrocompass Blk Wiring Diagram IC Ckt
“LC”
Coast Guard Drawing 627 WMEC 426-002, Rev H , Gyrocompass Circuit “LC” Wiring Data (Coed) Coast Guard Drawing 627 WMEC 441-001, Rev AE , Rad Comms Wrg Diag – Intl Rack Wrg Diag & Rack Det
COAST GUARD PUBLICATIONS
Coast Guard Commandant Instruction (COMDTINST) M10360.3C, Change 1, Jun 2006, Coatings and Color v (Rev-0)
Manual Coast Guard Technical Publication (TP) 3719 , SWBS 426, Section A , Oct 2005 , Gyrocompass Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), Jan 2009, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), Jan 2009, Welding and Allied Processes
OTHER REFERENCES
ASTM International (ASTM) D4417, 2003, Standard Test Methods for Field Measurement of Surface Profile of Blast Cleaned Steel Code of Federal Regulations (CFR) Title 33 CFR, 2008, Navigation and Navigable Waters Code of Federal Regulations (CFR) Title 40, Chapter I, 2008, Environmental Protection Agency Code of Federal Regulations (CFR) Title 49, Chapter I, 2008, Pipeline and Hazardous Materials Safety Administration, Department Of Transportation Commercial Item Description (CID) A-A-59316, Nov 2003, Abrasive Materials for Blasting MIL-A-22262, Mar 1996, Abrasive Blasting Media Ship Hull Blast Cleaning The Society for Protective Coatings (SSPC) VIS 1, 2004, Guide and Reference Photographs for Steel Surfaces Prepared by Dry Abrasive Blast Cleaning vi (Rev-0)
Consolidated List of Government-furnished Property The following is a list of property, which the Government will furnish. This list supersedes any other material obligations indicated or implied by referenced drawings.
WORK
ITEM
MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED
COST
($/UNIT)
1 N Gyrocompass (includes
Connector Kit and Installation Kit)
ACN: 6605-01-F11-2048 1 ea. $90,000.00
1 N Connector Kit PN: 4301242-2 1 ea. N/A 1 N Installation Kit PN: 4301250 1 ea. N/A 1 N Data Interface System
(Step transmitter) PN: BBG-USCG-STEP-002 1 ea. $17,000.00
1 N Data Acquisition System (Synchro transmitter)
PN: BBG-7266E 1.ea. $11,000.00
*Government-loaned property, which shall be returned to the vessel upon completion of the availability.
**New or refurbished equipment that the Government may provide for installation in place of existing equipment.
***Government-furnished property, which is to be supplied by either the vessel or the C4IT ServiceCenter vii (Rev-0)
Consolidated List of Critical Inspection Items The following is a list of work items, which contain Critical Inspection reports, which the Contractor must complete within the first 25% of the availability contract period (see SFLC Std Spec 0000_STD, paragraph
3.2.6.5 (Inspection report particulars)):
Work Item Title
This section is not applicable to this package.
viii (Rev-0)
PC_210B_WMEC_0909
Principal Characteristics
210' WMEC
PHYSICAL CHARACTERISTICS
Length Overall 210' 6" Length, Design Waterline 200' 0" Depth (main deck at side to baseline) 19' 6" Maximum Beam 34' 0" Height of Highest Projection 88' 0" Full Load Draft 4,000 lbs Height of FM Antenna Above Baseline 90' 0" Light Ship Displacement 875 long tons Full Load Displacement 1100 long tons Shore Tie Voltage Requirements 400A / 440V Frame Spacing 1' 0"
MACHINERY CHARACTERISTICS
Main Propulsion 2 Alco Model 251B Diesel Engines, 5,000 BHP total
Ship's Service Generators 2 Caterpillar Model 3406B Diesel-driven SR4. 250 KW each @ 0.8 power factor, 440V AV, 3 phase, 60 cycle
Emergency Generator Caterpillar Model D333B Diesel-Driven. Century Synchronous Model, ACR-507, 100KW
Number of Propellers 2 Number of Blades 4 Diameter 7' 6" Pitch Controllable Shaft RPM 300 Shaft Diameter 8.25"
TANK CAPACITIES
Diesel Fuel (95%) 48,375 gal Fresh Water (95%) 11, 108 gal JP-5 Fuel (95%) 4,697 gal Lube Oil (95%) 1,942 gal
1 (Rev-0)
00000_PWB_0211_FLT
REC_0000_FLT_ Commercial Project @ CG Facility (0211)
General Requirements
1. SCOPE
1.1 Intent. This item describes the general requirements to be followed by the Contractor while conducting this availability.
2. REFERENCES
COAST GUARD DRAWINGS
None.
COAST GUARD PUBLICATIONS
Coast Guard Commandant Instruction (COMDTINST) M10360.3C, Change 1, Jun 2006, Coatings and
Color Manual Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), Jan 2009, General
Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), Jan 2009, Welding and Allied Processes
OTHER REFERENCES
ASTM International (ASTM) D4417, 2003, Standard Test Methods for Field Measurement of Surface
Profile of Blast Cleaned Steel Code of Federal Regulations (CFR) Title 33 CFR, 2008, Navigation and Navigable Waters Code of Federal Regulations (CFR) Title 40, Chapter I, 2008, Environmental Protection Agency Code of Federal Regulations (CFR) Title 49, Chapter I, 2008, Pipeline and Hazardous Materials Safety
Administration, Department Of Transportation Commercial Item Description (CID) A-A-59316, Nov 2003, Abrasive Materials for Blasting MIL-A-22262, Mar 1996, Abrasive Blasting Media Ship Hull Blast Cleaning The Society for Protective Coatings (SSPC) VIS 1, 2004, Guide and Reference Photographs for Steel
Surfaces Prepared by Dry Abrasive Blast Cleaning
3. REQUIREMENTS
3.1 General. The Contractor shall conform to all requirements specified in SFLC Std Spec 0000 and in this item, as applicable, during the performance of this availability.
2 (Rev-0)
NOTE
The requirements of paragraph 3.1 (General) applies to all work under the scope of this contract, whether explicitly stated in work items or not, and also to all other work subsequently authorized by changes, modifications, or extensions to the contract.
3.2 Contractor-provided fire extinguishers. The Contractor shall provide portable fire extinguishers.
3.3 Welding and brazing requirements. The Contractor shall perform all welding and allied processes, and NDI in accordance with SFLC Std Spec 0740.
3.4 HW disposal. The Contractor shall be responsible for all hazardous wastes generated by work under this contract. Label and package all hazardous wastes in 49 CFR-approved containers, and in accordance with all other applicable Federal, state, and local laws and regulations. In addition, comply with applicable parts of 40 CFR 262, applicable to handling of hazardous wastes.
3.4.1 Along with the Government, the Contractor shall be contractually considered the co-generator of all hazardous wastes; be aware that the Government will make available its facility’s EPA Generator Identification (ID) Number for manifesting of hazardous wastes.
3.4.2 The Contractor shall identify, arrange, and be responsible for the turnover of all hazardous wastes, within the confines of the Coast Guard shore facility, to the facility’s HM/HW Coordinator. Notify the ship’s HW Coordinator prior to any transfers of HW from ship to shore.
3.4.3 The Contractor shall prepare a manifest of hazardous waste to be reviewed and signed by the HM/HW Coordinator. Contact the HM/HW Coordinator for turnover of any hazardous waste; in addition, notify the COTR in writing 24 hours prior to any waste removals, and ensure that waste removals are conducted during normal business hours (0800-1600) on Monday through Friday (excluding holidays).
3.4.4 The Contractor shall be aware of the following:
3.4.4.1 No Contractor or Subcontractor shall have the authority to sign a Hazardous Waste Manifest using the Coast Guard facility’s EPA Generator ID Number or remove contract generated hazardous waste from the Coast Guard facility without COTR or KO-approval.
3.4.4.2 Local environmental regulations at the Government facilities may be more stringent than in many jurisdictions. As with all environmental regulations, it is the Contractor's responsibility to research, prepare for, and comply with local and state regulations.
3.4.4.3 Coast Guard facilities do not have Facilities Response Plans (see 33 CFR 154 Subpart F). It is the Contractor’s responsibility to furnish the Facility Response Plan (FRP) when required for over-the-water liquids transfers to and from vessels. This requirement is applicable to transfers to/from vessels with an oil/fuel capacity of 250 barrels or more.
3.5 Pre-surface preparation test coupon. In order to ensure production of required surface profile, the Contractor shall accomplish the following tasks, whenever abrasive-blasting is required in a work item that is deemed a ”critical-coated’ surface:
3.5.1 Coupon material and test set-up particulars.
3.5.1.1 Conduct a performance test on all abrasive blasting operations on a Contractor- provided test coupon, prior to starting abrasive blasting operations on the vessel. Ensure the following:
3 (Rev-0)
• The coupon shall be a new metal plate, of the same metal type and material properties as the vessel area to be blasted - steel or aluminum plate, as applicable, and shall have no existing anchor profile - other than the surface irregularities from the manufacturing process.
• The test coupon shall be flat, with nothing welded to the side used for the anchor profile test, no thinner than a 1/8-inch plate and measuring no smaller than 1-foot by 1-foot.
• For steel substrates, the coupon shall have the mill scale intact, and be in a Rust Grade "A" condition, in accordance with SSPC-VIS 1.
• The test coupon shall be affixed so as to not permit excessive movement during the performance test, but shall not be affixed to the vessel.
3.5.1.2 Ensure that the abrasive-blasting operation for the test coupon is conducted with the identical setup and parameters that will be used blasting the designated vessel surfaces – including, but not limited to:
• The abrasive media type and media size selected to achieve the anchor profile range, as specified in the applicable work items.
• Nozzle size and type (straight bore, high velocity nozzle, angle nozzle...).
• Delivery rate and pressure settings.
3.5.1.3 Blast a one-square foot area on one side of the test coupon to the abrasive surface preparation standard specified in the work item, and perform an anchor profile test of the blasted surface in accordance with ASTM D4417, Method B or C. Notify the COTR in advance of the abrasive blasting operation test, to permit the witnessing of the test by the COTR. Submit a CFR documenting the results of the abrasive blasting operation test. The CFR shall include at a minimum, the following:
• Area of the vessel for which the verified setup will be used to abrasive blast.
• The selected abrasive media type and size.
• The nozzle size and type.
• The delivery rate and pressure.
• The test coupon starting properties (material type and surface conditions).
• The resultant anchor profile readings from the test (a minimum of 3 locations, separated by a minimum of
2 inches shall be recorded).
NOTES
1. A performance test of the abrasive blasting operations on a test coupon and measuring the resultant anchor profile prior to performing the abrasive blasting operation on the cutter is required. The test coupon will be used to evaluate the anchor profile produced by the equipment setup and selected abrasive media.
2. The reverse side of the test coupon may be used for the subsequent test, provided that the conditions in paragraph 3.5.1 (Coupon material and test set-up particulars) are met.
3. Ultra high pressure water jetting does not create an anchor profile and is exempt from the anchor profile test coupon check.
3.5.1.4 Repeat the abrasive blasting operation test in the following instances:
• The equipment setup, that was evaluated during the test coupon abrasive blasting performance test in paragraph 3.5.1 (Coupon material and test set-up particulars), has changed.
4 (Rev-0)
• The resultant anchor profile readings observed on the vessel are outside the specified anchor profile range.
• Media is changed from MIL-A-22262 to CID A-A-59316 or vice versa.
• The supplier of the abrasive blasting media changes, regardless if the new source for the media has the same specifications.
• When Directed by the COTR.
CAUTION!
Ensure that blast media from the performance test does not strike the vessel during the test.
3.6 Interim changes to SFLC Std Spec 0000. The Contractor shall be aware of the fact that the requirements of paragraph 3.3.2.1.1 (Water depth) have been revised to read as follows:
“3.3.2.1.1 Water depth. Ensure that water depth is sufficient at the pier to allow the vessel's lowest underwater appendage to clear the bottom by at least two feet at:
• Ordinary low water mark on non-tidal rivers.
• At all tide conditions predicted during the availability for tidal rivers and other navigable waterways (Bay, Lake, etc.).”
4. NOTES
4.1 Access to COMDTINST M10360.3. The COMDTINST M10360.3 may be accessed at the following URL address: http://www.uscg.mil/directives/cim.asp
4.2 QA inspection forms. QA inspection forms (QA-1 thru QA-5), required in SFLC Std Spec 0000 to be completed and submitted during preservation of “critical-coated surfaces”, are provided at the end of this document.
5 (Rev-0)
QA-1 - QUALITY ASSURANCE INSPECTION FORM
(PRESERVATION CHECKLIST)
Vessel Name Hull # Work Item # Work Item Title
Location of Work (incl. frame #’s) Area (sqft)
CHECKPOINT 1 – COATING SYSTEM COMPLIANCE
Ensure all coatings are in compliance with COMDTINST M10360.3, Appendix C.
CHECKPOINT 2 - PAINT STORAGE
Ensure all coatings are kept at a temperature of 65 to 85°F at all times, unless otherwise specified by the coating mfgr.
CHECKPOINT 3 - AMBIENT CONDITIONS
Ensure surface and surrounding temperatures are each between 50 and 90°F for water-based coatings, and 35 and 95°F for other coatings, unless otherwise specified by the coating manufacturer(s).
Ensure maximum relative humidity (RH) is as follows, from surface preparations through final curing of topcoat: 50% for tanks, voids, and vent plenum; and 85% for all other areas, unless otherwise specified by manufacturer(s).
Ensure surface temperature is at least 5°F above the dew point, unless otherwise specified by the coating mfgr.
CHECKPOINT 4 - PRE-SURFACE PREPARATION
Remove surface contaminants (soluble salts, loose rust, mud, and marine growth) with low pressure fresh water wash down
(maximum 5,000 psi). If oil and grease are present, perform solvent cleaning, as per SSPC SP-1.
Verify equipment setup, blast media, and surface preparation methods match designated test coupon.
CHECKPOINT 5 - SURFACE PREPARATION
Verify environmental conditions (see CHECKPOINT 3).
Ensure cleanliness of prepared surface is as per specification (i.e.: SSPC SP-12, SP-11, SP-10…).
Verify surface anchor profile using ASTM D4417-Methods B or C against COMDTINST M10360.3. Conduct profile readings at a minimum of 5 locations for the first 1000-sqft area, and 2 locations for each succeeding 1000-sqft area.
Measure soluble salt conductivity in accordance with SSPC-Guide 15. Conduct 5 measurements per each 1000-sqft area (max.
threshold: 70 microsiemens/cm for non-submerged surfaces, 30 microsiemens/cm for submerged surfaces).
CHECKPOINT 6 - PRIMER COAT APPLICATION
Verify environmental conditions (see CHECKPOINT 3).
Verify proper mixing and stand-in (induction) times.
Ensure no paint is applied when the temperature is expected to drop to freezing before the paint has dried.
Ensure surfaces are completely dry, unless otherwise allowed by the coating manufacturer(s).
Verify wet film thickness (WFT) at random, to prevent under or over application. Verify final DFT.
Brush out all runs, sags, drips, and puddles.
Perform visual inspection for holidays and other defects.
CHECKPOINT 7 – STRIPE COAT APPLICATION
Verify environmental conditions (see CHECKPOINT 3).
Ensure overcoating window is as per manufacturer’s instructions.
After primer coat (mist coat after inorganic zinc), brush-apply un-thinned coat of same primer paint over edges, weld seams, cut-outs, and areas of complex geometries @ 3-4 mils wet film thickness (WFT).
CHECKPOINT 8 – TOP COAT APPLICATION
Verify environmental conditions (see CHECKPOINT 3).
Ensure overcoating window is as per manufacturer’s instructions.
Verify proper mixing and stand-in (induction) times, as applicable.
Verify wet film thickness at random, to prevent under or over application.
Brush out all runs, sags, drips, and puddles.
CHECKPOINT 9 – FINAL INSPECTION
Verify final system dry film thickness. Conduct 5 sets of 3 readings for each of the first 3 100-sqft areas, followed by 5 sets of 3 readings for each succeeding 1000-sqft area.
Ensure that system cure is in accordance with manufacturer's recommendation for intended service.
Ensure potable water tank exhaust ventilation is maintained continuously from and during coating application through final system cure, to exhaust all solvent to the atmosphere and to prevent solvent entrapment.
For immersion coatings (including tank U/W body), record date and time of the following events:
Final coat application: _____/_____; Return to service or removal from environment controls: _____/_____
CHECKPOINT 10 – RECORD KEEPING
Complete, sign, and submit all provided QA Inspection Forms.
Name of QP-1/NACE Inspector Signature Cert. # Date / Time
6 (Rev-0)
QA-2 - QUALITY ASSURANCE INSPECTION FORM
(ENVIRONMENTAL READINGS)
Use one sheet for each activity. Record conditions every four hours from before surface preparation to application of final coating system coat.
DATE &
TIME
ACTIVITY (Surface preparation, primer coat, barrier coat, top coat, etc…)
LOCATION
(Frame &
Deck, relation to equipment, etc.)
TEMPERATURE % REL.
HUMID-
ITY DEW PT. SURFACE AMBIENT ΔT
| DP - Surface |
7 (Rev-0)
QA-3a - QUALITY ASSURANCE INSPECTION FORM
(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-C)
Location of Work (Frame References) Area (sqft)
SURFACE PREPARATION METHOD PROFILE ACHIEVED (mils) Min Max Mean
SSPC-SP-10/NACE No. 2 SSPC-SP-12/NACE No. 5
SSPC-SP-3
SSPC-SP-11
SSPC-SP-11 (inaccessible area) Brush-blasting (non-metallic substrate)
Abrasive Manufacturer and Sieve Size: _________________________________ Place surface profile replica tapes in the spaces provided below, to serve as permanent QA record. Maintain a separate log for each location. When an area is divided into separate sections, maintain a separate log for each section.
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils
Place Surface Profile Replica Tape Here
Reading:__________ mils Mean Mil Reading (IAW ASTM D4417-Method C) for above 15 readings: ______________
8 (Rev-0)
QA-3b - QUALITY ASSURANCE INSPECTION FORM
(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-B)
SURFACE PREPARATION METHOD PROFILE ACHIEVED (mils) Min Max Mean
SSPC-SP-10/NACE No. 2 SSPC-SP-12/NACE No. 5
SSPC-SP-3
SSPC-SP-11
SSPC-SP-11 (inaccessible area) Brush-blasting (non-metallic substrate)
Abrasive Manufacturer and Sieve Size: _________________________________ Record measurements taken in the spaces provided below, to serve as permanent QA record. Maintain separate log for each location. When an area is divided into separate sections, maintain a separate log for each section.
Reading: _____ mils _____ mils _____ mils _____ mils _____ mils
Reading: _____ mils _____ mils _____ mils _____ mils _____ mils
Reading: _____ mils _____ mils _____ mils _____ mils _____ mils
Reading: _____ mils _____ mils _____ mils _____ mils _____ mils
Reading: _____ mils _____ mils _____ mils _____ mils _____ mils
Reading: _____ mils _____ mils _____ mils _____ mils _____ mils
Reading: _____ mils _____ mils _____ mils _____ mils _____ mils
Reading: _____ mils _____ mils _____ mils _____ mils _____ mils
Reading: _____ mils _____ mils _____ mils _____ mils _____ mils
Reading: _____ mils _____ mils _____ mils _____ mils _____ mils Mean Mil Reading (IAW ASTM D4417-Method B) for above 10 readings (by column):
_____ mils _____ mils _____ mils _____ mils _____ mils
9 (Rev-0)
QA-4 - QUALITY ASSURANCE INSPECTION FORM
(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)
SOLUBLE SALT CONDUCTIVITY MEASUREMENTS IAW SSPC-GUIDE 15
DATE TEST LOCATIONS CONDUCTIVITY
(microsiemens/cm)
10 (Rev-0)
QA-5 - QUALITY ASSURANCE DATA FORM
(COATING THICKNESS)
(Use one sheet for each sequence)
Coating Mfg Product Name Batch # Induction Time
Coating System Sequence (Primer/Touchup/3rd Coat, etc.)
DRY FILM THICKNESS (DFT) MEASUREMENTS IAW SSPC-PA 2
SPOT 1 2 3 4 5 AVERAGE
VALUE
*BASE METAL
READING (BMR)
*Required, If Magnetic Pull-Off (Type I/Banana) Gauge Is Used.
Location (Frame Reference): ___________________
SPOT 1 2 3 4 5
Overall Avg. DFT
ADJUSTMENTS
1 Avg. BMR Deviation 3 Before
Adjustments After Adjustments
Avg.
Location (Frame Reference): ___________________
SPOT 1 2 3 4 5
Overall Avg. DFT
ADJUSTMENTS
1 Avg. BMR Deviation 3 Before
Adjustments After Adjustments
Avg.
Location (Frame Reference): ___________________
SPOT 1 2 3 4 5
Overall Avg. DFT
ADJUSTMENTS
1 Avg. BMR Deviation 3 Before
Adjustments After Adjustments
Avg.
Application Method (Airless, Conventional Spray, Rolled) Average DFT
11 (Rev-0)
TCTO_TF1000.0_42600 _JMS_0411_210
WORK ITEM 1: Gyrocompass, Upgrade
1. SCOPE
1.1 Intent. This work item describes the requirements for the Contractor to replace the current Sperry Gyro compass with the MK27F Northrop Grumman Fiber Optic Gyro Compass (AHRS).
1.2 Government-furnished property.
MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED
COST
($/UNIT)
N Gyrocompass (includes
Connector Kit and Installation Kit)
ACN: 6605-01-F11-2048 1 ea. $90,000.00
N Connector Kit PN: 4301242-2 1 ea. N/A N Installation Kit PN: 4301250 1 ea. N/A N Data Interface System (Step transmitter) PN: BBG-USCG-STEP-002 1 ea. $17,000.00
N Data Acquisition System (Synchro transmitter)
PN: BBG-7266E 1.ea. $11,000.00
*Government-loaned property, which shall be returned to the vessel upon completion of the availability.
**New or refurbished equipment that the Government may provide for installation in place of existing equipment.
***Government-furnished property, which is to be supplied by either the vessel or the C4IT Service Center.
2. REFERENCES
COAST GUARD DRAWINGS
A CLASS VESSELS:
Coast Guard Drawing 618 WMEC 184-003, Rev H, I.C. & Gyro Rm Elec. Equip. Foundation Details Coast Guard Drawing 618 WMEC 401-001, Rev R, I.C. & Gryo Room General Arrangement Coast Guard Drawing 618 WMEC 411-001, Rev F, SCCS System Block Wiring Diagram and Installation
Details Coast Guard Drawing 618 WMEC 426-001, Rev N, Major Maintenance Availability Gryo Compass
Block Wiring Diagram Ckt “LC” Coast Guard Drawing 618 WMEC 426-002, Rev R, Gyro Compass Circuit “LC” Wiring Data (COED) Coast Guard Drawing 618 WMEC 426-003, Rev -, MK27F Gyro Compass Installation Design Plan Coast Guard Drawing 618 WMEC 426-004, Rev -, MK27F Gyro Compass Installation Wiring Data
(COED)
Coast Guard Drawing 618 WMEC 441-001, Rev AG, Rad Comms Blk Wrg Diag-Internal Rack Wrg
Diag & Rack Details
12 (Rev-0)
Coast Guard Drawing 618 WMEC 441-007, Rev D, Inmarsat B System Block Wiring Diagram Coast Guard Drawing 618 WMEC 451-001, Rev B, AN/SPS-73(V)6 SSR & AN/SPS-69 Radar
Installation Modifications
B CLASS VESSELS:
Coast Guard Drawing 618 WMEC 411-001, Rev F, SCCS System Block Wiring Diagram and Installation
Details Coast Guard Drawing 618 WMEC 426-003, Rev -, MK27F Gyro Compass Installation Design Plan Coast Guard Drawing 618 WMEC 426-004, Rev -, MK27F Gyro Compass Installation Wiring Data
(COED)
Coast Guard Drawing 618 WMEC 441-007, Rev D, Inmarsat B System Block Wiring Diagram Coast Guard Drawing 618 WMEC 451-001, Rev B, AN/SPS-73(V)6 SSR & AN/SPS-69 Radar
Installation Modifications Coast Guard Drawing 627 WMEC 184-003, Rev D, I.C. & Gyro Rm Elec. Equip. Foundation Details Coast Guard Drawing 627 WMEC 401-001, Rev P, General Arrangement of I.C. and Gyro Room Coast Guard Drawing 627 WMEC 426-001, Rev J, MK 27 Mod 1 Gyrocompass Blk Wiring Diagram IC
Ckt “LC” Coast Guard Drawing 627 WMEC 426-002, Rev H, Gyrocompass Circuit “LC” Wiring Data (Coed) Coast Guard Drawing 627 WMEC 441-001, Rev AE, Rad Comms Wrg Diag – Intl Rack Wrg Diag &
Rack Det
COAST GUARD PUBLICATIONS
Coast Guard Commandant Instruction (COMDTINST) M10360.3 (series), Coatings and Color Manual Coast Guard Technical Publication (TP) 3719, SWBS 426, Section A, Oct 2005, Gryocompass
(Reference 60 Hz sections) Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), Jan 2009, General
Requirements
OTHER REFERENCES
None.
3. REQUIREMENTS
3.1 General.
3.1.1 CIR.
None.
3.1.2 Technical Representative. The Contractor shall provide the services of a qualified Tech Rep, who is familiar with the Sperry Marine gyrocompass equipment/system, to accomplish the following tasks – on site:
• Advise on manufacturer's proprietary information pertinent to the system.
• Assist with proper installation methods.
• Ensure compliance with manufacturer's procedures and standards during installation, inspection, modification, and calibration of the equipment/system.
13 (Rev-0)
3.1.2.1 Ensure that the Tech Rep has a resume of demonstrated experience with the system/equipment stated above.
3.1.2.2 Submit a copy of the Tech Rep’s résumé and a list of references to the to the COTR at the Arrival Conference.
3.1.3 Protective measures. The Contractor shall furnish and install suitable covering to seal off and protect all non-affected surfaces/equipment and spaces in the vicinity of the work area against contamination during the performance of work. Upon completion of work, remove protective material and inspect for the presence of contamination. Clean all equipment and spaces, contaminated due to improper protection, to original condition of cleanliness.
3.1.4 Interferences. The Contractor shall be aware that interferences in way of work include, but are not limited to the below-listed. Handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences):
• Wiring and cables.
• Gyrocompass and repeaters.
3.2 Equipment removal. The Contractor shall remove the following equipment, using the references listed in Section 2:
3.2.1 Disconnect and remove cables C-LC3 and C-LC4 between Power Transfer Unit and Electronic Control Unit.
3.2.2 Disconnect and remove cable C-LC2 between switching unit and Electronic Control Unit.
3.2.3 Disconnect and remove cable C-LC1 between Master Compass and Electronic Control Unit.
3.2.4 Disconnect and remove cable C-LC7 between Switching unit and Repeater Transfer Panel.
3.2.5 Disconnect and remove cable (3-83-1)1P-B(2) (USCGC Active Only) or (3-72-1)-1P-B(2) (Class) between power Transfer Panel and Repeater Transfer Panel.
3.2.6 Disconnect and remove cables C-LC8 and C-LC9 from the Power transfer unit. Retain these cables to be rerouted in the installation of the new BBG Data Interface System (BBG-USCG-STEP-002).
3.2.7 Disconnect and remove all repeater cable connections in Mark 37 Repeater Transfer Panel. Retain these cables to be reconnected in the installation of the new BBG Data Interface System (BBG-USCG-STEP-002).
3.2.8 Disconnect and remove cable C-LC11 between the Power Transfer Panel and Synchro Signal Amplifier.
3.2.9 Disconnect and remove cable C-LC20 between the Synchro Signal Amplifier and the Synchro Distribution Switchboard.
3.2.10 Disconnect and remove cable C-LC6 between the Power Transfer Unit and Switching Unit.
3.2.11 Disconnect and remove cable C-LC5 between the Power Transfer Unit and Power Converter.
3.2.12 Disconnect and retain cable C-LC10 between the Power Transfer Unit and Bus failure Alarm located in the pilothouse. This cable will be rerouted to the 28VDC power supply.
14 (Rev-0)
3.2.13 Disconnect and retain cable C-LC25 between the Power Transfer Unit and Steering Alarm Panel located in the pilothouse. This cable will be rerouted to the new Automatic Power Transfer Panel.
3.2.14 Disconnect and retain cables C-LC19-1, C-LC23(1), C-LC26 and C-LC100 connected to the Synchro Distribution Switchboard.. This cables will be rerouted to the new BBG-7266E Synchro Amplifier.
3.2.15 Disconnect and remove cables (3-83-1)1P-M (USCGC Active Only) or (3-72-1)-1P-M (Class) between the Power Panel and Synchro Signal Amplifier. Retain this cable for reconnection to the new BBG-7266E Synchro Amplifier.
3.2.16 Remove the Main Gyrocompass, Electronics Control Unit, Switching Unit, Power Converter, Repeater Transmission Unit and Power Transfer Panel from their foundations.
3.2.17 Remove the Synchro Signal Amplifier and the Synchro Distribution Switchboard.
3.3 Foundation modification. The Contractor shall fabricate foundation adaptation pieces and modify the foundations as follows, using Coast Guard Drawing 618 WMEC 184-003 or Coast Guard Drawing 627 WMEC 184-003, as applicable, and Coast Guard Drawing 618 WMEC 426-003 for guidance:
3.3.1 Fabricate and install the foundation adapter plate for the Master Compass, using TP 3719 (paragraph 8-3).
Position the Gyro Compass adapter plate to provide maximum clearance to the rear of the gyrocompass for cable connections while considering a bolting scheme which will adequately fasten the plate to the existing foundation and allowing sufficient spacing for mounting of the gyrocompass. Mount adapter plates using appropriate hardware, (316 stainless steel, 5/16” bolts, flat washers and lock washers).
3.3.2 Mount foundation adapter “C” clips to the existing Repeater Transmission Unit foundation. The new transmission unit will not fit between the beams as the existing unit does. The foundation adapter “C” clips allow for mounting the new BBG Repeater Data Interface Unit outside the confines of the beams. Mount ‘C” Clips with 5/16” hardware using hex head bolts, flat and lock washers, (316 Stainless Steel). It may be necessary to drill the existing mounting holes to accommodate the 5/16” hardware. Install mounting plate to “C” Clips using 5/16” hardware. Drill as necessary to accommodate the mounting holes of the BBG Repeater transmission Unit
3.4 New equipment installation. The Contractor shall install all new equipment in accordance with the references listed in Section 2.
3.4.1 Compass installation. Mount Master Compass on newly installed adapter plate using the hardware from the supplied installation kit (NG part #4301250). Conduct physical installation of the master compass in accordance with TP 3719, Chapter 8, sections 8-1 through 8-11. Mount BBG Repeater Transmission Unit to its mounting plate using 5/16” S.S hardware as used in section 3.3.2.
3.4.2 Repeater connection. Connect all repeater cables to BBG-Repeater Transmission Unit. Note that cables for the “Vital” repeaters (C-LC8 and C-LC9) will now be driven by circuitry in the BBG-Repeater Transmission Unit.
3.4.3 Master Compass connection. The NG MK27F Gyro Compass System is supplied with a Connector Kit (NG part # 4301242-1 or 4301242-2). The part number ending in the number “2” indicates that the connectors are right-angle connectors. This would be a better choice of connectors for this particular installation given the position of the master compass. There are no changes between the two connection options IRT electrical connection. Make connections on cables 1R-RN5, C-Y10, C-LC3, L-LC4, and L-LC30. Actual pin configuration can be found in section 8 of TP 3719.
15 (Rev-0)
3.5 Training. The Tech Rep shall provide onsite training to ships force during the installation/testing period of the gyrocompass system. Provide a training plan and/or training documents for review and comment to the COTR 2 weeks prior to the beginning of the installation. Training shall include all operation modes and recommended maintenance on the system, and shall accommodate up to 6 students.
3.6 Operational test – post repairs. After completion of work, the Contractor shall witness an operational test (by Coast Guard personnel) of the gyrocompass system to prove satisfactory operating condition. Submit a CFR.
3.6.1 Refer to paragraph 4.2 (Test memo) for the installation testing procedure.
3.6.2 The Tech Rep shall witness a minimum of 4-hour sea-trial test of the gyrocompass system. The sea-trial may occur at a later date than the installation.
3.7 “Red-lined” drawing deliverables. For the first installation only, the Contractor shall “red-line” the Coast Guard Drawings listed in Section 2 herein to clearly reflect any deviations accomplished during the completion of this work item.
3.7.1 Within 24 hours after completion of this work item, submit a draft copy of the marked-up drawings to the COTR for review and approval.
3.7.2 Within 10 calendar days after receiving Coast Guard comments or completion of the availability, whichever occurs first, incorporate all comments and deliver one set of the final red-lined drawings to the COTR.
4. NOTES
4.1 Cutter locations. Installation dates will be subject to the cutters’ schedules and availabilities, and will not be certain at the time of award. The cutters to receive this installation are located at the following home piers:
Active A Class Port Angeles, WA Alert B Class Warrenton, OR Confidence A Class Patrick AFB, FL Dauntless B Class Galveston, TX Decisive B Class Pascagoula, MS Dependable B Class Cape May, NJ Diligence A Class Wilmington, NC Reliance A Class Kittery, ME Resolute B Class St. Petersburg, FL Steadfast B Class Warrenton, OR Valiant B Class Miami Beach, FL Venturous B Class St. Petersburg, FL Vigilant A Class Patrick AFB, FL Vigorous B Class Cape May, NJ
4.2 Test memo. The following Test Memorandum will be used during the operational test after installation.
16 (Rev-0)
1) TITLE: Northrop Grumman MK27F Attitude and Heading Reference System (AHRS) (Fiber Optic Gyro Compass)
2) PURPOSE: To demonstrate the proper installation and operation of the Northrop Grumman MK27F AHRS as the vessels Gyro Compass System.
3) REFERENCES:
a) CG Drawing 618-WMEC-426-001; Gyro Compass BWD CKT “LC”
b) CG Drawing 627-WMEC-426-001; Gyro Compass BWD CKT “LC”
c) CG Drawing 618-WMEC-426-002; Gyro Compass BWD Wiring Data
d) CG Drawing 627-WMEC-426-002; Gyro Compass BWD Wiring Data
e) Coast Guard Technical Publication (TP) 3719, SWBS 426, Section A, Oct 2005, Gryocompass
(Northrop Grumman Document #JA17-8182 MK-27F GYRO ATTITUDE AND HEADING REFERENCE SYSTEM (AHRS) Operation & Service Manual)
4) ATTACHMENTS:
a) MK27-F GYRO INSTALLATION CONFIGURATION DATA RECORD (BLANK)
b) MK27-F GYRO INSTALLATION CONFIGURATION DATA RECORD (WITH
RECOMMENDED CONFIGURATION DATA)
5) REQUIRED TEST EQUIPMENT:
The following is a list of the required test equipment needed for the equipment test:
a) Digital Multimeter (DMM) with valid calibration certification.
b) Bit Test Plug p/n 4600382 (supplied with gyro compass equipment).
6) PREPARATION:
A) Using Ref’s a through d, check all interconnecting cabling for proper installation. This will include proper marking of the cabling (cable tags), proper strapping of the cables within existing cable runs when applicable, and proper termination IAW the wiring data furnished in ref’s c and d.
Conducted by _____________
B) Verify with Multimeter the proper AC voltage (120 VAC 60 Hz Nominal) input at TB1-1 and TB1-2 of the Power Transfer unit.
C) Verify with Multimeter the proper DC voltage (24 VDC Nominal), input at TB5-7 (+) and TB5-6 (-) of the Power Transfer Unit. This voltage is supplied by the vessel’s emergency battery supply.
D) Verify with Multimeter the proper DC voltage (24 VDC Nominal), at TB5-8 (+) and TB5-9 (-) of power Transfer Unit. This is the DC voltage from the Power Converter Unit which the MK27F Gyro Compass uses under normal working conditions.
E) The installing activity shall read and understand the content of Chapter 1 (General Information) and
Chapter 2, (Operation) of the MK-27F Gyro Compass operations and service manual (reference (e)).
17 (Rev-0)
F) Proceed to Chapter 8 of reference (e). Insure that the physical installation of the gyro compass was carried out IAW paragraphs 8-1 through 8-11 of Chapter 8.
G) The installing activity shall read and become familiar with the procedure set forth in section 8-12 of reference “e”. This particular installation will be utilizing serial input #1 for GPS Data and serial input #2 for Speed Log Data. One stream of NMEA data (HDG) will be sent to the Transmission Unit. The outputs will not be used at this time. They will be available for future use. This particular installation will be using an external signal reference for the 60 HZ Synchro signal.
H) Attached documents contain a copy of a blank “MK27-F GYRO INSTALLATION CONFIGURATION DATA RECORD” and a copy of the same document with recommended/suggested settings. The installing activity shall fill out all pertinent information as required by the installation, make a copy and leave onboard vessel with the ship’s representative. These documents will contain required data needed when utilizing the SETUP procedure of the MK27-F Gyro.
7) ENERGIZING AND SETUP MODE
A) Following the procedure outlined on page 8-11 of reference (e), perform the following:
i) Locate and refer to the “CONFIGURATION DATA RECORD” specific to the installation being performed.
j) Loosen the gyro top cover screws. Open top cover for access to the SETUP button, (see paragraph 2-
2.5 and Figure 2-2 of reference “e”). It will be used to enter the Off-Line Mode and to save the configuration data.
k) Verify that signals are available from the ship’s speed log and GPS receiver, if fitted.
l) On the gyro, set Power Switch (S1) to ON (up position).
m) Inside the gyro, locate the SETUP button and press the SETUP button once during the 45-second startup period.
n) Observe that the Off-Line Mode menu is displayed.
>EDIT SETUP
RECALL SETUP
SAVE SETUP
SIMULATE / VIEW I/O
o) Use the UP <key> (↑) or DOWN <key> (↓) to highlight the EDIT SETUP menu.
p) Use the RIGHT <key> (→) to select the EDIT SETUP menu. Observe that the following menu is displayed.
>SERIAL
SYNCHRO
SYSTEM ALIGNMNET
OTHER
18 (Rev-0)
q) Refer to the menus in Table 8-10 on page 8-20 of reference (e) to view the Operator selections/options available. Enter the configuration data for the MK27-F Gyro installation by using the Keypad keys to move between menus and sub-menus and to make selections and assign values for each selection and use the RIGHT <key> (→) to enter the data for the selection highlighted. If necessary, return to a menu or sub-menu to change or correct data. Record the configuration selections on the blank MK27-F GYRO INSTALLATION CONFIGURATION DATA RECORD sheet. (in attachment 1)
B) SERIAL MENU
a) SERIAL menu is used to configure the four (4) ports at connector J4. Each port can be configured independently for baud rate, output messages, (maximum of 3 per port) and message rate for each message. Incompatible message rates and baud rates are not allowed. Higher baud rates may be necessary to support higher message rates or multiple sentences in the message. Setting the output baud rate also sets the input baud rate for each port (i.e. the input’s baud rate defaults to the output port’s baud rate setting). Refer to table 3-2 in Reference (e) for a list of options available. In this particular installation, set Serial Port #1 to 4800 baud with output MSG to include HDT, ROT and XDR. These outputs will not be used initially, but are intended for future expansion when needed.
LEVEL 1 MENU
>SERIAL
SYNCHRO
SYSTEM ALIGNMENT
LEVEL 2 MENU
>#1BAUD 4800 MSG
#2 BAUD 4800 MSG
#3 BAUD --- ---
#4 BAUD --- ---
LEVEL 3 MENU
PORT #1 ID RATE
>MSG 1 MESSAGEID1 10
MSG2 MESSAGE ID2 100
MSG3 NONE
BAUD Rate: 4800, 9600, 19200, 38400, 57600 or 115200 baud MESSAGEID cannot be accessed unless baud rate is chosen. MESSAGEID options are ATT, HDG, PRP, ROT or XDR.
MESSAGE Rate: 1, 2,10,25,50 or 100 (Hz).
PORT # changes according to port chosen.
Conducted by _______________
A) SYNCHRO MENU
a) SYNCHRO menu is used to independently configure each of the two (2) synchro channels at connector J2, for heading, roll or pitch synchro output. Synchro scaling from 1X to 360X is available (e.g. 2X, 36X, 180X, etc.). Refer to paragraph 3-9.1 and Table 3-1 of reference (e). In this particular installation set Channel 1 to H (Heading) and 1X Speed and set Channel 2 to H (heading) and 36X Speed.
19 (Rev-0)
SERIAL
>SYNCHRO
HRP SPD
Channel #1 >H 1X Channel #2 R 36X
HRP: H = Heading, R = Roll, P = Pitch SPD = Synchro Scaling = Any value from 1X to 360X Display drops leading 0’s (e.g. 001X => 1X).
(a) Set Synchro output #1 to Heading (H) and output to X1 Speed.
Conducted/Verified by_______________
(b) Set Synchro output #2 to Heading (H) and output to X36 Speed
Conducted/Verified by_______________
A) SYSTEM ALIGNMENT MENU
a) SYSTEM ALIGNMENT menu allows entry /change of the mechanical mounting offsets selected at installation (i.e. the orientation of the gyro if it was not positioned with its front-rear azimuth marks in line with the ship’s centerline and if the roll and pitch of the mounting surface were not exactly 0 degrees). Since the MK-27F Gyro can be mounted at any angle to the ship’s centerline, the HDG entry in the SYSTEM ALIGNMENT menu is used to correct for the mounting position as it deviates from the fore-aft centerline (or heading) of the ship. The value entered is subtracted from the gyro heading; e.g. if the gyro is mounted facing starboard the heading offset should be increased by +1 degree. Roll and pitch offsets are aligned similarly; the offset modifies the roll or pitch output. In STANAG 4222 convention, (see OTHER menu), the offset is subtracted from the roll and pitch, and in US NAVY convention it is added to the roll and pitch. Heading is not affected by the selection of STANAG 4222 or US NAVY convention. Note: In typical installations of the gyrocompass for navigation use, the roll and pitch offsets are left at zero.
ATTENTION: If roll and pitch offsets are used, the offsets should be entered in the following order to ensure correct alignment with the ship axes: HDG first, then PITCH, then ROLL last.
NOTE
For alignment (entering offsets) references, the side of the gyro with the connectors is the forward (0000) side of the gyro and the side of the gyro with the display is the aft (1800) side of the gyro. This is important when entering offsets (alignment) into the gyro.
After the gyro is in the ALIGNED state, the actual heading, roll and pitch are displayed next to these offset entries. This allows real-time adjustment of the heading, roll or pitch error. The change to ALIGNED state
20 (Rev-0) occurs approximately 12-15 minutes after power up. However, the gyro error determined before two (2) hours after power-up is not as accurate as after the gyro is fully settled which occurs within not later than two (2) hours after gyro power-up.
ATTENTION: Verify the gyro alignment (offset) using the settled gyro heading compared to the ship’s true heading. It is best to let the MK27F Gyro settle at least two (2) hours before checking the gyro error (MK27-F Gyro heading compared to reference (master gyro) heading). If gyro error is out of specification, change the system alignment values (offsets) as required to eliminate the gyro error.
SYNCHRO
>SYSTEM ALIGNMENT
OFFSETS ACTUAL
HDG >+000.00 ± xxxx.x PITCH +000.00 ± xxxx.x ROLL +000.00 ± xxxx.x
OFFSETS: Known differences from centerline and Roll / Pitch axis.
ACTUAL: Gyro shows current heading, Roll and Pitch values (after (ALIGNED).
Maximum Heading offset is 179.90 . Maximum Roll and Pitch offset allowed is 1800.
Conducted/Verified by _______________
B) OTHER MENU
a) OTHER menu contains the means for operator to set the Rate Of Turn (ROT) filter time constant (in seconds), the roll and Pitch convention (US NAVY or STANAG 4222) and to see (read only) the software version (part number and revision letter) of the software that is installed in the gyro.
SYNCHRO
>OTHER
ROT TC > xxx.x SEC
SIGNTYPE STANAG 4222
VERSION XXXXXXXX
ROT TC (Rate of Turn Time Constant) = xxx.x (SEC = seconds) SIGNTYPE = Either US NAVY or STANAG 4222 sign convention.
VERSION = Software version installed in gyro (p/n and revision letter)
21 (Rev-0)
b) ROT Filter Time Constant:
The typical formula for Rate of Turn time constant is as follows:
ROT Time Constant = ship’s length (feet) / 1.69 x Cruising Speed (knots) Typical values might be 8 – 10 seconds for a tug, 14 seconds for a DDG, 35 seconds for a large tanker, and 45 seconds for a large ore carrier. It is suggested that the operator enter a value that will match the ship’s response so that there is not any higher frequency noise, motion, or vibration effects in the rate of turn output. The default setting is 1.0 seconds.
Conducted/Verified by______________
c) Roll and Pitch Sign Convention:
The Roll and Pitch sign convention options are as follows:
US NAVY: Positive pitch is Bow Down, Positive Roll is Starboard Up.
STANAG 4222: Positive Pitch is Bow Up, Positive Roll is Port Up.
The gyro alignment (offsets) for Roll and Pitch polarity reverse when the convention is changed.
Also refer to SYSTEM ALIGNMENT menu.
d) After all configuration data has been entered and checked, exit back into the Off-Line Mode menu using the LEFT <key> (←). (Note: The key may need to be pushed several times depending on where you are in the sub-menus). Observe that the following OFF-Line Mode menu is displayed.
e) Use the UP <key> (↑) or DOWN <key> (↓) to highlight the SAVE SETUP menu.
EDIT SETUP
>SAVE SETUP
f) Use the RIGHT <key> (→) to select the SAVE SETUP menu. Observe that the following is displayed. The “PUSH” will be blinking to alert the operator that action is required.
PUSH
SETUP BUTTON
AND WAIT FOR
CONFIRMATION
g) Inside the gyro, locate the SETUP button and press the SETUP button once.
h) Observe that ‘SAVING” is displayed and…
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