Purchase_Description__USN_EXWC_Heavy_Haul_Trailer_System_formated.docx

PURCHASE DESCRIPTION

TRAILER SYSTEM, LOWBED, HEAVY HAUL (RGN) WITH OPTIONAL JEEP AND POWER BOOSTER

Naval Facilities Engineering and Expeditionary Warfare Center (NAVFAC EXWC) Document Identifier: Purchase Description Heavy Haul Trailer

Revision: 9/22/2026

SECTION 1: INSTRUCTIONS AND NOTES TO OFFERORS

1.1 Exceptions to Specification

The Offeror shall explicitly and completely identify any and all exceptions taken to the requirements of this specification. Drawings, literature, and any other information submitted with an offer do not constitute a stated or implied exception unless specifically identified in writing as an exception and accepted and implemented by an amendment to the solicitation or modification to the contract. Any exception deemed acceptable by the Government shall apply only to the specific item or requirement cited and shall not extend to any other requirement.

1.2 "Or Equal" Evaluations An Offeror offering items other than brand name items identified herein, when an "or equal" may be acceptable, shall furnish with their proposal all technical data, product descriptions, and specifications necessary to ensure that a determination may be made as to the equality of the product offered (reference FAR Clause 52.211-6, "Brand Name or Equal").

1.3 Proposal Submittal Requirements

The Offeror shall submit the following items with their proposal:

Letter of Exceptions: A detailed explanation, submitted in a separate letter, of any exceptions to the specification, including alternate equipment proposed or an affirmative declaration of comprehensive understanding with zero exceptions taken.

Preliminary Engineering Drawings: Detailed drawings showing:

Layout views of the proposed trailer system, including primary lowbed trailer and all ancillary equipment (jeep, power booster, pony motor, and outriggers), verifying compliance with dimensional envelopes.

Exterior front, rear, and side elevations with overall dimensions.

Estimated unladen curb weights and Gross Axle / Trailer Weight Ratings (GVWR / GAWR).

Quality Assurance Documentation: Documented evidence of established quality assurance systems and manufacturing standards.

Customer and Technical Support Plan: Detailed procedures for customer service, warranty execution, and 24/7 technical support access via email, telephone, and web portal.

SECTION 2: SCOPE AND APPLICABLE DOCUMENTS

2.1 Scope and Background

Naval Facilities Engineering and Expeditionary Warfare Center (NAVFAC EXWC) has a requirement to replace an aging fleet of trailers based on current mission and support requirements. NAVFAC EXWC has documented requirements to address shortcomings of the current fleet that at a minimum comply with Military (MIL), American Welding Society (AWS), and Society of Automotive Engineers (SAE) standards for tactical and commercial trailers. Compliance with these government and non-government standards introduces commonality with other military, Department of Defense (DoD), and civilian trailers, allowing fleet and joint operations to utilize capabilities to their fullest. The trailers will support operational readiness and functionality in austere, expeditionary conditions worldwide.

2.2 Applicable Documents

The following documents of the issue in effect on the date of solicitation form a part of this specification to the extent specified herein:

2.2.1 Federal Standards and Regulations

Code of Federal Regulations (CFR):

49 CFR Part 393 – Parts and Accessories Necessary for Safe Operation (FMCSR) 49 CFR Part 571 – Federal Motor Vehicle Safety Standards (FMVSS) Note: DOT publications may be accessed at www.access.gpo.gov or obtained from the Superintendent of Documents, U.S. Government Publishing Office, Washington, D.C. 20402.

2.2.2 Military and Federal Specifications

MIL-STD-209K: Department of Defense Interface Standard for Lifting and Tie-Down Provisions (Para 5.2 through 5.6.6) MIL-STD-1366E: Interface Standard for Transportability Criteria (Para 5.4, 5.7) MIL-STD-1791D (Change 1): Department of Defense Interface Standard for Internal Aerial Delivery in Fixed Wing Aircraft (Para 5.1 through 5.3.4.4) DODI 4540.07 (Change 3): Operation of the DoD Engineering for Transportability and Deployability Program A-A-50271: Plates, Identification, Marking, and Information

2.2.3 Society of Automotive Engineers (SAE) Standards

SAE J163: Low Tension Wiring and Cable Terminals and Splice Clips SAE J429: Mechanical and Material Requirements for Externally Threaded Fasteners SAE J551: Measurement of Electromagnetic Radiation from Motor Vehicles and Devices SAE J553: Circuit Breakers SAE J560: Primary and Auxiliary Seven-Conductor Electrical Connector for Truck-Trailer Jumper Cable SAE J561: Electric Terminals – Eyelet and Spade Type SAE J575: Tests for Motor Vehicle Lighting Devices & Components SAE J576: Plastic Materials for Use in Optical Parts Such As Lenses and Reflectors of Motor Vehicle Lighting Devices SAE J578: Color Specification for Electric Signal Lighting Devices SAE J682: Front and Rear Wheel Splash and Stone Throw Protection SAE J1128: Low Tension Primary Cable SAE J1292: Automobile, Truck, Truck-Tractor, Trailer, and Motor Coach Wiring SAE AMS-STD-595A: Colors Used in Government Procurement

2.2.4 Industrial and International Standards

ASTM B117 / ASTM D1654: Salt Spray (Fog) Testing and Evaluation of Painted Specimens ASTM D3170: Standard Test Method for Chipping Resistance of Coatings ISO 668: Series 1 Freight Containers – Classification, Dimensions, and Ratings ISO 1726-1:2000 / NATO STANAG 4009: Interface Geometry, Tractors and Semi-Trailers Detailing Tow Vehicle/Trailer Interface ISO 7241 Series B: Hydraulic Fluid Power Quick-Action Couplings TMC RP 803: Pre-Service Trailer Inspection, Technology & Maintenance Council, American Trucking Associations

2.3 Order of Precedence

In the event of a conflict between the text of this purchase description and the references cited above, the most stringent requirements, as determined by the Government, shall take precedence. Nothing in this purchase description, however, supersedes applicable Federal and State safety laws and regulations.

SECTION 3: TECHNICAL AND CONFIGURATION REQUIREMENTS

3.1 System Description and Payload Capacity

The Trailer Lowbed Heavy Haul System shall consist of a heavy-duty commercial/tactical lowbed semi-trailer featuring a Hydraulic Removable Gooseneck (RGN) and engineered provisions to integrate with modular ancillary components, including an optional two-axle tandem hydraulic jeep and an optional two-axle steerable rear power booster.

Payload Rating:

Distributed Capacity: 140,000 lbs (70 Tons) minimum distributed load.

Concentrated Capacity: 140,000 lbs minimum concentrated load across the trailer deck platform.

Representative Transport Payloads: The system shall safely transport heavy, oversized, and tracked construction equipment, including:

KALMAR RT240 Rough Terrain Container Handler (RTCH): ~118,500 lbs GVW 110-Ton Crawler Crane with angle boom (36-inch tracks): ~110,000 lbs Gross Weight Caterpillar 120 Motor Grader: ~97,000 lbs Gross Weight Caterpillar 340 Long Reach Excavator (LRE, 33-inch triple grousers): ~97,000 lbs Gross Weight Caterpillar 340 Hydraulic Excavator (HYEX, 33-inch triple grousers): ~87,600 lbs Gross Weight Caterpillar 770 Rock Dump Truck (HD Dual Slope): ~78,675 lbs Gross Weight Caterpillar 621B Motor Scraper: ~72,455 lbs Gross Weight

3.2 Dimensions and Weights

Overall Width: Nominal 10.0 feet (120 inches) basic deck width (excluding side outriggers).

Overall Length: Sized to accommodate specified naval cargo within federal bridge formula constraints.

Deck Loaded Ground Clearance: Minimum 6.0 inches ground clearance when fully laden to 140,000 lbs payload.

Extended Deck Width: Capable of expanding to 11.5 feet (138 inches) minimum using swing-out outriggers and red oak hardwood planking.

3.3 Chassis Frame and Main Deck

Frame Structure: High-strength structural steel I-beam chassis with reinforced upper and lower flanges engineered to eliminate sag and structural yield under severe dynamic shock loading.

Front Loading Ramps: Heavy-duty reinforced front ramps extending across the deck width with welded 3/4-inch minimum traction cleat bars and lower weep holes for drainage.

Outriggers: Removable, heavy-duty full-length swing-out outriggers on each side, supplemented by heavy-duty pin-on front box outriggers with positive lockouts.

Deck Planking: Decking shall consist of steel, composite decking (1-3/4 inch Rumber or equivalent), or diamond tread plate. All decking materials must be impervious to fluids, oil, mud, and UV degradation, and compliant with U.S. Department of Agriculture (USDA) import standards.

Outrigger Lumber: Genuine Red Oak hardwood planks (Apitong is prohibited). Stored in a dedicated centerline deck storage compartment and clamped in place with spring-actuated inverted U-shaped steel retaining plates with positive locking teeth.

3.4 Rear Bridge, Boom Trough, and Bucket Well

Load-Bearing Rear Bridge: Heavy-duty structural steel rear bridge with load distributed evenly over all axles. Pneumatic air-lift suspension on designated axles (flip axles are prohibited).

Excavator Bucket Well: Recessed bucket well at the rear of the main load deck covered with removable steel cover plates, fitted with dedicated recessed cargo D-rings.

Boom Trough: Open-center rear boom trough fitted with heavy-gauge sectional steel floor plates for ease of maintenance.

Transition Traction Aids: Minimum 3/4-inch welded cleat bars/traction aids at transition points (main deck to rear bridge). Walking and wheel surfaces finished in diamond tread plate.

3.5 Hydraulic Removable Gooseneck (RGN)

Configuration: Heavy-duty steel hydraulic removable gooseneck (HDG/RGN) configured to couple directly to a prime mover or modular tandem jeep.

Swing Radius: 84.0 inches minimum standard commercial/tactical swing radius.

Coupler Height Adjustment: Five (5) to seven (7) variable ride-height settings accommodating 5th wheel heights from 45 to 57 inches.

Locking Mechanism: Automatic positive mechanical lock/pawl to ensure secure travel locking.

Hydraulic Controls: Weatherproof control levers mounted on the driver (street) side with etched operational placards. Gooseneck structure engineered to prevent sagging or ground contact during disconnection.

3.6 Auxiliary Power Unit (Pony Motor) and Hydraulics

Pony Motor: Heavy-duty industrial diesel engine compatible with JP-8, F-24, and high-sulfur diesel fuel. Protected inside an enclosure centered within the gooseneck frame, equipped with push-button electric start, auto-diverter valve for PTO operations, and a battery box with drain holes.

Hydraulic Wet Line System:

Dual hydraulic lines with ISO 7241 Series B 3/4-inch 14 NPTF quick-disconnect couplers with protective rubber boots.

System shall operate at a minimum flow rate of 25 GPM with an integrated priority relief valve to regulate prime mover pressure.

Compatible with MIL-PRF-2104J (OE/HDO-10) 10W engine lubricating oil and AW32 hydraulic oil (water-based hydraulic fluids and automatic transmission fluids are strictly prohibited).

3.7 Optional System Modules (Jeep and Booster)

3.7.1 Optional Gooseneck (NATO STANAG 4009)

When ordered, the gooseneck shall provide a minimum swing clearance of 90.5 inches to assure full operational compatibility with tactical tow tractors conforming to NATO STANAG 4009 / ISO 1726-1:2000.

3.7.2 Optional Tandem-Axle Hydraulic Jeep

Structure & Capacity: Welded steel chassis, two (2) axles, engineered to support and distribute heavy payloads across the tractor-trailer combination.

Coupling: Flip-neck with dual hydraulic cylinders; sliding 5th wheel with air locks; variable 5th wheel height from 45 to 57 inches; 84-inch minimum swing radius.

Running Gear: Two-speed landing gear, mechanical hub-odometer (driver side), front/rear swing-out safety lighting, and two (2) lift/tiedown D-rings per side.

3.7.3 Optional Two-Axle Steerable Rear Power Booster

Structure & Steering: Welded steel chassis, two (2) steerable pin-on axles (flip boosters prohibited). Equipped with self-contained hydraulic power unit (HPU) providing hydraulic steering assist during reverse maneuvers.

Equipment: Two-speed landing gear, mechanical hub-odometer (driver side), 1/2-inch chain drops, flag holders, removable oversized load signs, and two (2) lift/tiedown D-rings per side.

3.8 Running Gear, Suspension, Brakes, and Wheels

Suspension: Heavy-duty air-ride suspension with variable ride-height control and manual dump valve (hold, raise, lower with auto-dump). Placarded: DUMP SUSPENSION BEFORE DISCONNECT.

Slack Adjusters & Hubs: Automatic slack adjusters; oil-bath hubs with visible fluid sight glass; mechanical (analog) hub-odometer mounted on driver side front axle (digital units prohibited).

Brakes: Full commercial standard Anti-Lock Braking System (ABS) with roadside mechanical air-tank drain controls. ABS status lamp mounted on driver side rear.

Tires: First-line, commercial-grade, non-retread steel-belted pneumatic radial highway tires rated for the full system GVWR (~130,000 lbs minimum per module). Matching brands across all axles. Manufacture date shall not exceed one (1) year at delivery ("Double Coin" brands prohibited).

Wheels: Solid steel single-piece hub-piloted wheels with lugs (super singles prohibited).

3.9 Electrical and Lighting Systems

Operating Voltage: Dual 12V/24V DC multi-voltage commercial LED lighting system (operational range 6–28V DC).

Tactical & Commercial Connectors:

Standard 12-pin NATO tactical intravehicular receptacle (24V).

Standard 7-way SAE J560 commercial round-pin receptacle (12V).

Lighting Functions: Fully sealed DOT stop/turn/tail lamps, side markers, retroreflective lenses, and military blackout lighting.

Specialized Load Lighting: Front and rear swing-out safety bar clearance lighting with manual driver-side shut-off switches.

Wiring System: Fully sealed, modular wiring harnesses enclosed in protective heavy-duty convoluted conduit. Secured via bolt-through cushioned steel brackets; pass-throughs fitted with neoprene grommets. Zip ties, tape, and open wire hangers are prohibited.

3.10 Auxiliary Equipment and Securement Hardware

D-Rings:

Main Deck: Minimum eight (8) welded 15,000-lb rated D-rings per side, plus eight (8) centerline floor-mounted D-rings.

Gooseneck: Two (2) welded 10,000-lb rated D-rings per side.

Boom Trough & Bucket Well: Recessed 15,000-lb rated D-rings.

Chain Slots: 1/2-inch chain/key drop slots along main outer beams and 4-way center chain drop slots down deck center.

Toolboxes: Two (2) lockable, weatherproof steel toolboxes with flush-mounted continuous hinges and padlock hasps.

Auxiliary Gear: One (1) matching spare tire and wheel mounted clear of loading paths; removable "OVERSIZE LOAD" signs with mounting brackets; two (2) pairs of flag holders with flags; complete wheel tool kit (breaker bar, lug wrench handle, sockets); and NHTSA FMVSS 108 DOT-C2 red/white reflective tape.

SECTION 4: PERFORMANCE AND OPERATIONAL REQUIREMENTS

4.1 Operational and Environmental Capabilities

The complete trailer system (including jeep and booster) shall operate reliably under the following conditions:

Roadway Types: Engineered for highways, paved secondary roads, gravel, and cobblestone surfaces. (Not intended for off-road/cross-country tactical terrain).

Longer Combination Vehicle (LCV) Compliance: Fully compliant with all 50-State DOT regulations, bridge weight formulas, and FMCSA safety rules. Special oversized/overweight transit permitting shall be arranged by the Navy.

Operating Temperatures: Continuous operation across ambient temperatures from -25°F to 130°F (-31.7°C to 54.4°C).

Continuous Duty Cycle: Minimum 10 hours continuous operation (excluding refueling) with scheduled one-hour maintenance intervals.

4.2 Air Transportability and ATTLA Certification

ATTLA Air Transportability Certification

1. Purpose and Scope This procedural workflow establishes the end-to-end operational and engineering sequence required to achieve United States Air Force (USAF) Fixed-Wing Air Transportability Certification for military equipment and ground vehicles.

Certification applies to transport on the following strategic and tactical airlift platforms:

Lockheed Martin C-130 Hercules / Super Hercules (C-130E, C-130H, C-130J) Boeing C-17 Globemaster III Lockheed C-5 Galaxy / C-5M Super Galaxy

2. Governing Standards and Policy References All submissions, structural assessments, and interface testing must adhere to the following Department of Defense (DoD) directives and military standards:

DODI 4540.07 CHG-3: Operation of the DoD Engineering for Transportability and Deployability Program MIL-STD-1366E: Interface Standard for Transportability Criteria MIL-STD-1791D CHG-1: Designing for Internal Aerial Delivery in Fixed Wing Aircraft (Specifically Section 5.3.3.2 and Paragraph 6.4) MIL-STD-209K: Interface Standard for Lifting and Tiedown Provisions

3. Stakeholder Roles and Responsibilities (RACI Matrix)

4. End-to-End Procedural Workflow [Phase 1: Contract Award & Project Initiation] (Within 10 Days Post-Award) [Phase 2: In-Production Collaboration & Technical Checks] [Phase 3: Final Technical Data Package (TDP) Assembly] [Phase 4: ATTLA Engineering Evaluation & Review] (Within 60 Days) (Deficiencies Found) (Package Approved) [Corrective Action / RFI] [ATTLA Certification Memo Issued] [Phase 5: IOA Verification & Delivery] [SDDCTEA / Pull Test] (Only if required)

Phase 1: Contract Award and Project Initiation [Contract Awarded: GSA/DLA] ──> [Distribute MVDO/Contract] ──> [Sponsor Letter Sent within 10 Days] ──> [ATTLA Opens Project] Award Notification & Documentation:

The Acquisition Source (GSA, DLA, or other agency) notifies the purchasing customer / Government Agency Sponsor of the contract award.

Acquisition Source transmits the award order/contract, including:

Order or contract number (inclusive of all exercised options).

Copy of the Motor Vehicle Delivery Order (MVDO), as applicable.

Purchasing Customer / Sponsor contact info (name, phone, email).

Awarded OEM Vendor / Contractor contact info (name, phone, email).

Sponsor Letter Submission (Deadline: 10 Working Days Post-Award):

The Government Agency Sponsor acts as the official liaison and submits an initial request letter via email to ATTLA (ATTLA@us.af.mil) at Wright-Patterson AFB to open an active project case file.

Mandatory Project Reference Data:

Item Nomenclature / Product Description (e.g., Truck Tractor 20T, Trailer Lowbed HYD RGN 60T).

Acquisition Order / Contract Number and option details.

Copy of the MVDO (if applicable).

Government Sponsor contact information.

OEM Vendor primary point of contact.

Vendor Kick-Off Guidance:

Sponsor delivers the official ATTLA compliance checklist and the Technical Data Package template to the OEM vendor.

ATTLA acknowledges project opening and confirms the aircraft airframes targeted for certification (, , ).

Phase 2: In-Production Collaboration and Technical Checks Throughout manufacturing, the Government Sponsor and OEM collaborate to evaluate Work-in-Progress (WIP), Finite Element Analysis (FEA), 3-view CAD drawings, and prototype fitment.

Critical Geometry & Engineering Verification Checklist The OEM and Sponsor must verify the following parameters against the ATTLA Universal Data Spreadsheet:

☐ Approach Angle: Front clearance angle during aircraft ramp transition.

☐ Ramp Breakover Angle: Underside ground clearance over aircraft ramp crest.

☐ Departure Angle: Rear clearance angle during transition off loading ramps.

☐ Maximum Height Profile: Height, longitudinal station, and identity of the highest physical projection.

☐ Significant Projections: Dimensional coordinates of mirrors, exhaust stacks, winches, pintles, or brush guards.

☐ Individual Axle Curb Weights: Unloaded scale curb weight measured per axle.

☐ Wheelbase & Overhang: Centerline wheelbases, front overhang, and rear overhang dimensions.

☐ Rear Suspension Articulation: Unloaded vertical axle articulation travel under curb weight.

☐ Rear Axle Spacing: Longitudinal distance between multi-axle / tandem / tridem clusters.

☐ Axle & Suspension Structural Margin ():

Verify front axle rating vs. .

Verify rear axle rating vs. .

Verify front suspension rating vs. .

Verify rear suspension rating vs. .

☐ Driveline Integrity on Axle Stop Removal: If axle bump stops must be removed for aircraft crest clearance, verify the driveline remains fully intact, seated, and operational without binding across maximum ramp angles.

☐ Tiedown Provision Geometry & Ratings: Verify provision configuration, directional pull envelope, and structural attachment conform to MIL-STD-1791D (Para 5.3.3.2) and MIL-STD-209K.

Design Interchanges: ATTLA engineers may offer virtual technical assistance (via Microsoft Teams or VTC at no charge) during product development upon sponsor request. On-site ATTLA engineering participation requires travel funding from the requesting procurement office.

Phase 3: Technical Data Package (TDP) Assembly and Submission Upon physical completion of the first production unit, the OEM contractor submits the completed TDP directly to the Government Sponsor's designated mailing address.

Mandatory TDP Elements (per MIL-STD-1791D Para 6.4) ATTLA Universal Data Spreadsheet: Fully populated tabs matching equipment type, using standard naming syntax (e.g., Truck Stake 2-Door 20 Foot Bed 30T).

Dimensional & Visual Data: 3-view dimensioned CAD drawings, high-resolution annotated photographs, and physical envelopes.

Structural Substantiation & Load Calculations:

Complete calculation package detailing engineering assumptions, material specifications, and force balance diagrams.

Structural proof showing compliance of cargo and equipment tiedown provisions under maximum dynamic g-loading.

Proposed Tiedown Pattern: Detailed restraint scheme illustrating chain angle configurations for each cargo aircraft type.

Data Plate Verification: Photographic evidence of a permanent design data plate affixed to the vehicle/trailer indicating certified lifting and tiedown ratings (MIL-STD-209K).

Package Vetting and Forwarding Sponsor receives OEM data package and verifies complete documentation.

Sponsor conducts quality audit to ensure all technical fields, drawings, and calculations are present.

Sponsor officially submits the vetted TDP to ATTLA (ATTLA@us.af.mil) on behalf of the contractor.

Phase 4: ATTLA Review, Analysis, and Certification [Complete TDP Submitted] ──> [ATTLA Technical Analysis] ──> [Resolve Inquiries/RFI] ──> [Approval Memo: <= 60 Days] Analytical Review:

ATTLA performs a detailed engineering analysis of vehicle geometry, axle loading, floor contact pressure, aircraft interior clearance envelopes, and tiedown restraints at no charge to the federal sponsor.

Actual and estimated weights are evaluated against MIL-STD-1791D criteria.

Deficiency Resolution (If Applicable):

If requirements are unmet or data is incomplete, ATTLA provides written notice of rejection with specific remediation instructions.

Sponsor coordinates with OEM to execute design revisions, update calculations, or revise loading procedures.

Certification Memo Issuance:

Once all compliance criteria are met, ATTLA issues the official Air Transportability Certification Memo within 60 calendar days of receiving an acceptable, complete technical package.

The memo defines all approved airframes, flight configurations, shoring requirements, and tiedown schemes.

Phase 5: Post-Certification Verification, Delivery, and Closeout Factory Acceptance Inspection & Scale Weighing:

Contractor furnishes the ATTLA Certification Memo to the GSA Industrial Operations Analyst (IOA).

Contractor provides a certified commercial scale weight ticket showing individual curb weights for all axles on the completed build.

GSA IOA Verification Rule:

The GSA IOA inspects the equipment to verify physical conformance with the certification memo.

The IOA verifies that loaded axle weights do not exceed 80% of rated capacity:

Distribution of Certification:

Contractor supplies the approved ATTLA certification memo with the first production unit.

Sponsor forwards copies of the final certification to Naval Facilities Engineering and Expeditionary Warfare Center (NAVFAC EXWC) branches (EX2, EX4, and/or EX5 as applicable).

Copy retained in project historical files.

5. Non-Standard Workflows A. Delivered / Fielded Assets Lacking ATTLA Certification When equipment or ground vehicles have already been delivered without an Air Certification Memo, the following remediation procedure is enforced:

[Uncertified Asset Discovered] [Sponsor & Acquisition Source Direct OEM] [Option A: Retrieve Asset] [Option B: Local Facility] (OEM retrieves asset back to factory) (OEM arranges certified local retrofit) [OEM Executes Modifications] [Sponsor Audits Changes] [Submit Retrofit TDP to ATTLA] [ATTLA Issues Certification] Direction to OEM: The Government Sponsor, through the Acquisition Source (GSA/DLA), issues formal direction to the OEM to correct the deficiency via either:

Physical retrieval of the delivered vehicle back to the manufacturing plant; or Contracting and overseeing an authorized local repair facility to perform required retrofits.

Modification Completion & Notice: OEM advises the Sponsor in writing once modifications are complete.

Resubmission: Sponsor inspects physical modifications, updates the TDP, and submits the package to ATTLA for formal evaluation and certification memo issuance.

B. Special Assessment: Physical Test Loading and SDDCTEA Pull Testing

1. Physical Flight Test Loading (Uncertain Transportability) Applied when computational engineering analysis cannot conclusively establish loading clearances or structural margins.

Test loadings are scheduled as Special Airlift or Transport Missions (SAAM) requiring a formal test report.

Funding & Coordination: The purchasing customer / Government Agency Sponsor is responsible for formally requesting the test load mission and covering all associated airlift and personnel costs.

2. SDDCTEA Structural Analysis & Testing (MIL-STD-209K) Lead Time: OEM must supply provision dimensional data, material specifications, and structural finite element results to SDDCTEA at least 90 days prior to scheduled physical provision testing.

Objective: Upfront analytical modeling reduces destructive testing risks and may eliminate the requirement for physical pull testing if margins are sufficient.

Agency Coordination:

Surface Deployment and Distribution Command Transportation Engineering Agency (SDDCTEA), Newport News, VA (Phone: (757) 599-1113, Email: dpemail@tea.army.mil).

Aberdeen Test Center (ATC) for physical testing services.

6. Vehicle Configuration Reduction Criteria (1 Man-Hour Rule) If an equipment item must be reduced in size or height to fit cargo door envelopes:

Tool & Time Thresholds:

Mechanically attached (non-welded, non-riveted) components may be removed or relocated using standard hand tools.

Total removal, relocation, and tiedown time must not exceed 1 man-hour.

Reassembly time back to fully operational configuration must not exceed 1 man-hour.

Operational Constraints:

Self-Mobility: Vehicle self-mobility must remain intact in its reduced configuration (must be capable of driving on and off aircraft).

Stowage: Dedicated onboard tiedowns and stowage brackets for removed components must be integrated on the vehicle.

Shoring: The vehicle must load without auxiliary wood shoring unless structurally unavoidable.

Delivery State: The vehicle must never be delivered to the Government end-user in its reduced configuration.

7. Directory of Agency Contacts and Resources

Email: ATTLA@us.af.mil USAF Fixed-Wing Aircraft Air Transportability Evaluations & Certification

Phone: (757) 599-1113 Email: dpemail@tea.army.mil Surface Transportability, Rail Certification, and Provision Design Review

The trailer system and all ancillary modules (jeep, booster) shall be certified for internal fixed-wing air transport aboard USAF C-17 and C-5 aircraft in accordance with MIL-STD-1366E and MIL-STD-1791D (Change 1). Ancillary modules shall be dimensionally and structurally capable of being mobile loaded and secured onto the main trailer deck platform for consolidated flight.

ATTLA Certification Procedure:

Case Opening: Within 10 business days of contract award, the Navy Sponsor submits a formal sponsor request to ATTLA at Wright-Patterson AFB (ATTLA@us.af.mil) to open an official case file.

Data Package Submission: Within 90 days After Receipt of Order (ARO), the Contractor shall submit complete engineering drawings, dimensional sheets, and FEA structural analyses to ATTLA and SDDCTEA (dpemail@tea.army.mil).

80% Axle Loading Verification: ATTLA verifies that axle loads and curb weights do not exceed 80% of rated limits during maximum ramp-breakover angles.

Final Approval Memo: ATTLA issues a formal Transportability Certification Memorandum within 120 days ARO. A certified weight ticket from a state-certified scale shall be presented to the GSA Quality Assurance Representative (IOA) prior to final acceptance.

4.3 Lifting and Tie-Down Provisions (MIL-STD-209K)

Lifting Design Loads: The trailer, jeep, and booster shall feature dedicated crane hoist lift provisions (such that no spreader bar is required) sized to lift the complete unladen system without permanent structural deformation.

Tie-Down Design Loads: Heavy-duty tie-down provisions shall withstand gross vehicle weight restraint forces under full cargo loading during air, rail, marine, and highway transport in accordance with MIL-STD-209K.

Engineering Structural Analysis: The contractor shall provide comprehensive FEA data and stress calculations for all lift and tie-down rings and surrounding structural members at least 90 days prior to scheduled physical pull testing.

SECTION 5: COATINGS, FINISH, AND CORROSION CONTROL

5.1 Surface Preparation

All chassis frame surfaces, underbody components, and steel assemblies shall be thoroughly cleaned, degreased, and abrasive blasted to remove all rust, mill scale, weld slag, and contaminants prior to primer application.

5.2 Paint System Architecture

Primer Basecoat: Two-part non-CARC epoxy primer or zinc-rich primer applied to a minimum Dry Film Thickness (DFT) of 4.0 mils.

Polyurethane Topcoat: Two-part industrial non-CARC polyurethane coating applied to a minimum DFT of 4.0 mils.

Color: Flat lusterless Olive Drab Green (Color #34094 per SAE AMS-STD-595A).

Total Dry Film Thickness: Minimum combined thickness of 8.0 mils DFT.

Corrosion Resistance: Withstands 240 hours of salt spray testing per ASTM B117 / ASTM D1654 without blistering or rusting; gravel chip resistant per ASTM D3170.

Underbody Protection: Heavy-duty anti-corrosion wear undercoating (Line-X, Tectyl, or approved equivalent) applied to lower frame members, outer webs, and undercarriage wash-down areas.

Non-Skid Coating: Factory-applied high-traction grit coating applied to all horizontal frame surfaces, fender tops, and footwells.

SECTION 6: MARKINGS, IDENTIFICATION, AND DATA PLATES

6.1 Standardized Stencil Schedule

All markings shall be applied using solvent-resistant matte black paint (Color #37038 per SAE AMS-STD-595A) in commercial stencil typography.

6.2 Visual Reference Figures

Figure 1: Gooseneck Registration Stencil – Matte black 3-inch "U.S. NAVY" marking centered on gooseneck beam.

Figure 2: Rear Bridge Tailboard Stenciling – Identification and registration numbers aligned horizontally across the rear bridge.

Figure 3: Wheel Well Tire Pressure Marking – "TP - 120 PSI" stencil positioned between tandem axle wheel wells.

Figure 4: Frame-Mounted Tie-Down Provisions – Recessed and outboard D-rings with 1-inch "TIE DOWN" stencils.

Figure 5: Dedicated Lift Provisions – Outboard crane lift points identified with 1-inch "LIFT HERE" stencils.

Figure 6: Data Plate Template – Government-approved non-ferrous identification and shipping plate.

6.3 Identification and Shipping Data Plates

A stamped or etched non-ferrous metal data plate conforming to A-A-50271 shall be permanently riveted to each trailer, jeep, and booster module:

U.S. Department of the Navy Identification Nomenclature (e.g., TRAILER, LOWBED, HEAVY HAUL, 70-TON) Manufacturer Name, Make, Model, and Serial Number Vehicle Identification Number (VIN) and National Stock Number (NSN) U.S. Navy Registration Number (USN) / Attachment ID Overall Dimensions: Length, Width, Height (in / mm) Gross Vehicle Weight Rating (GVWR) and Unladen Curb Weight (lbs / kg) Date of Delivery (retained blank until formal DD Form 250 acceptance) Contract Number and Contracting Agency (GSA / NAVFAC EXWC) Warranty Terms (60 Months / Unlimited Mileage)

6.4 GSA Form 1398

The contractor shall affix one (1) copy of GSA Form 1398 (GSA Purchased Trailer) upon successful completion of Government origin inspection.

SECTION 7: QUALITY ASSURANCE, WORKMANSHIP, AND VERIFICATION

7.1 Workmanship and Rejection Criteria

The trailer system and all ancillary modules shall be manufactured in strict accordance with the highest commercial and military standards. The presence of any of the following defects shall constitute cause for immediate Government rejection:

Sharp, rough, or unfinished edges, burrs, or corners on walking and service areas.

Non-uniform body panels; unsealed joints or cracks.

Inadequate metal preparation, rust, mill scale, or paint blisters, runs, sags, craters, or voids.

Cracks, dents, or structural deformities in frame, tank shell, or fenders.

Incomplete, porous, or undercut welds not conforming to AWS and ASME Section IX standards.

Leaks of any kind in hydraulic lines, air brake plumbing, fuel tanks, or engine systems.

Misaligned fasteners, loose hinges, or unsealed appurtenances.

Use of zip ties, tape, or unapproved wire hangers to secure electrical or brake lines.

Excessive noise, vibration, or structural interference during operational road tests.

Failure to meet any specified performance parameter, dimensional envelope, or weight limit.

7.2 Verification Milestones

Compliance verification shall be executed according to the following milestone schedule:

7.3 Testing and Acceptance

Certified Scale Weighing: Every completed trailer system (including jeep and booster) shall be weighed on a certified scale to confirm actual unladen curb weight and axle ratings.

Pre-Service Inspection: Offeror shall perform a comprehensive pre-service inspection in accordance with TMC RP 803, with completed checklists stowed in each trailer.

Vocational Testing: All functional systems, including hydraulic gooseneck detaching/coupling, outrigger extension, pony motor start/run, air-ride suspension dump, and steerable booster hydraulics, shall be 100% operationally verified.

SECTION 8: LOGISTICS, WARRANTY, AND DELIVERY

8.1 Technical Manuals and Publications

Manual Delivery Schedule:

30–45 Days ARO: One (1) COTS commercial manual set with exploded parts lists for preliminary product support.

150 Days ARO: One (1) complete set of Draft Technical Manuals (searchable PDF).

270 Days ARO: Final As-Built Technical Manuals delivered to NAVFAC EXWC.

Delivery with Each Trailer: One (1) complete set of final technical manuals (digital CD/USB and printed paper formats) stowed with each delivered unit.

Content: Detailed Operator, Maintenance, and Illustrated Parts Breakdown (IPB) manuals with exploded views, original part numbers, and CAGE codes.

Line Setting Ticket: Build sheet listing VIN, serial numbers, UID tag numbers, and installed components shipped with each unit.

8.2 Comprehensive Warranty

The contractor shall provide a comprehensive 60-month (5-year) bumper-to-bumper warranty starting on the date of final Government acceptance (DD Form 250).

Initial on-site warranty response within three (3) business days.

Contractor covers 100% of parts, labor, and domestic expedited freight costs.

Staged repair facilities provided within the Continental United States (CONUS).

8.3 Delivery Locations and Ship-To Addresses

Trailers and modular components shall be delivered FOB Destination in accordance with the GSA Motor Vehicle Delivery Order to:

NAVFAC EXWC Point of Contact:

NAVFAC Engineering and Expeditionary Warfare Center (NFEXWC) 1000 23rd Ave, Bldg. 1100, Port Hueneme, CA 93043 Attn: Sean Nelson (EX223) | Email: sean.r.nelson1.ctr@us.navy.mil Will provide location (vendor must verify 90 days prior to shipment)

8.4 Delivery Hours and Base Access

Delivery Coordination Point of Contact:

NAVFAC Engineering and Expeditionary Warfare Center (NFEXWC) 1000 23rd Ave, Bldg. 1100, Port Hueneme, CA 93043 Attn: Sean Nelson (EX223) | Email: sean.r.nelson1.ctr@us.navy.mil (POC verified 90 days prior to delivery) Unstacking Requirement: Trailers must be delivered fully unstacked with wheels on the ground. Any material handling equipment (cranes, riggers, forklifts) required to offload and unstack trailers shall be furnished solely by the delivery contractor.

Delivery Hours: Monday through Thursday, 0800 to 1430 local time (no deliveries on Fridays, weekends, or Federal holidays).

Base Security Notice: Delivery drivers must coordinate physical arrival at least 30 days in advance. Drivers must present valid REAL ID, TWIC, or Veterans ID credentials; commercial licenses marked "NOT FOR FEDERAL IDENTIFICATION" will be refused entry. Drivers must present valid proof of vehicle insurance.