QandA_LOD Cart.pdf

Design and Fabricate LOD Cart, JBER, Alaska

Q&A

1. Please can you share the dimensions of this cart? L, W, H?

A: 108”L x 88”W. Height for a two cart stack (v1 is two carts nested) needs to be under 76”. Please watch the video brief at https://youtu.be/T-kXnlt8f34?feature=shared

2. What are your material preferences? It looks like aluminum, but is this a requirement?

A: Material preference is aluminum.

3. Same applies to the rollers - please can you share the desired material for these?

A: Material preference is aluminum, stainless, or steel with highly corrosion resistant coating. Designer discretion, however corrosion resistance should be heavily weighted.

4. Could you please confirm whether any existing engineering drawings, dimensional drawings, CAD files, technical sketches, or measurements for the LOD Cart Version

1.0 are available.

A: V1 Drawings are uploaded with this amendment.

5. Please provide any available dimensions, measurements, or other technical reference information for the existing cart.

A: V1 Drawings are uploaded with this amendment.

6. Will we have access to the CAD package for the Version 1.0 LOD cart?

A: V1 Drawings are uploaded with this amendment.

7. Is there a list of requirements, or a “wants, needs, and nice-to-haves” document, identifying the capabilities required for Version 2.0 that Version 1.0 does not currently satisfy?

A: uploaded list with this amendment – see “List – LOD Cart Requirements”.

8. Are dimensional drawings available for the missile pallets? Alternatively, can physical pallets be made available for measurement and interface verification?

A: Physical pallets can be made available. Drawing for missile pallets are not available at this time

9. When the LOD cart is disassembled for transport, must it be secured to a pallet? If so, is the required pallet a standard 463L pallet (108 in. × 88 in.)?

A: LOD cart will be treated as rolling stock and will not need to be secured to a pallet.

https://youtu.be/T-kXnlt8f34?feature=shared https://youtu.be/T-kXnlt8f34?feature=shared

10. The term “interfacing” with the aircraft is mentioned several times in the SOO. Does this require the LOD cart to positively latch or otherwise mechanically engage with the aircraft ramp or cargo handling system?

A: The LOD cart under no circumstance will latch or otherwise mechanically engage with the aircraft ramp or cargo handling system.

11. Access to both C-130 and C-17 loading ramps will be needed to verify fit and functionality. Are there existing attachment, indexing, or alignment points on the loading/unloading ramps that the LOD cart is expected or permitted to utilize?

A: there are no existing attachment, indexing, or alignment points on the loading unloading ramps that the LOD cart is expected to utilize.

12. Can you provide the specified height requirements or dimensional constraints for loading, unloading, and transporting the LOD carts, including the required interface heights with the aircraft and ground-support equipment?

A: unloading/loading height will be 37” – 75” this is to capture the low end of the C- 130 ramp height and high end of the C-17 ramp height. Must be under 76” in height for transport not to exceed the limits of c-130 ramp when closed.

13. Is there a document, procedure, or diagram describing the “K-Loader workflow” referenced in the SOO?

A: Will demonstrate during industry day via video.

14. To confirm, is the maximum required payload capacity of the LOD cart 20,000 lb?

A: maximum capacity is 10,000 per cart for 2 carts totaling 20,000 LBS.

15. The SOO references “Aerospace Ground Equipment Safety Tolerances.” Is there a governing specification, standard, or supporting document that defines these requirements?

A: There is not one single “AGE” safety tolerance document for this effort. The government expects the contractor to use applicable ground support equipment, system, safety, structural, aircraft-interface, human, engineering, corrosion protection, marking, and technical-data standards to justify the proposed design and test approach.

Applicable references include, but are not limited to:

• MIL-STD-882 system safety

• MIL-STD-1472 human engineering

• MIL-STD-1791 designing for internal aerial delivery and fixed wing aircraft

• MIL-STD-31000 technical data packages

• MIL-PRF-85285 topcoat aircraft and support equipment

• MIL-HDBK-2097 acquisition of support equipment

• MIL-M-81807 marking of aircraft ground support equipment and other flightline vehicles with retro reflective materials

16. Are there carts currently in military service for other logistics applications that meet similar payload and maneuverability requirements? We are particularly interested in existing wheel, caster, bearing, and steering solutions that have proven suitable for comparable loads.

A: There has only been 1 set of carts made to date no other service for other applications have been implemented for this system at this time.

17. Are there supporting documents, specifications, or examples defining the requirements and expected deliverables for the Level 2 Technical Data Package

(TDP)?

A: The level 2 TDP requirement is informed by MIL-STD-31000 and DI-SESS-81002.

The intent is to provide enough data for the Government to understand, evaluate, operate, inspect, maintain, test, and support the LOD cart V2.0 prototype.

Expected deliverables may include: drawings/models, BOM, material/coating recommendations, roller and handling-feature recommendations, load/safety-factory summary, inspection criteria, operator and maintenance guidance, replacement-parts list, test plan, and test report.

18. Please provide additional information and clarification regarding the Anti- Terrorism/Force Protection requirements identified in Section 8.0 of the SOO, including any applicable standards, design criteria, documentation, or compliance requirements.

A: This is standard language for contractor employees with an area of performance within Government controlled installation. We do not anticipate the awardee performing within a DoD installation other than shipping/delivery.

19. Can you provide video for the current state of operations and method for offload this is designed to replace?

A: See question 1.

20. Any future integration goals like autonomy or towing solutions that will be required or are desired in the design?

A: The LOD cart system will need to have a prime mover for towing.

21. I would also appreciate clarification on whether the requirement permits the successful contractor to perform the complete fabrication and assembly at its own facility and ship the finished carts to Joint Base Elmendorf-Richardson.

A: Yes, contractor may complete fabrication and assembly at its own facility and ship the finished carts to JBER.

22. Objective 2 – Fabrication: The SOO states that the carts are to utilize “high-strength, lightweight, corrosion-resistant materials.” Is the Government specifically intending for the carts to be constructed from aluminum, or would a steel construction with an appropriate protective coating to provide corrosion resistance be acceptable, provided the design meets the stated performance and weight requirements?

A: The Government is specifically intending for the carts to be constructed from aluminum.

23. Objective 3 – Modularity and Portability: The SOO states that the final product “must be under 4,000 lbs.” Does the 4,000-lb maximum apply to the complete LOD Cart system consisting of both carts combined, or is the limit 4,000 lbs per individual cart?

A: The 4000 LBS limit is intended for the system (BOTH) carts. NOT 4000 LBS per cart.

24. Objective 1 – Engineering and Design Refinement: The SOO states that the LOD cart system must “support, stabilize, and lower cargo payloads.” Could the Government clarify what is intended by “lower” in this requirement?

A: The carts as a system must lower with the payload on the carts.

25. Objective 6 – Mobility and Austere Terrain: The SOO states that the wheels or mobility components must be capable of supporting the full 20,000-pound payload on austere, unpaved surfaces, including dirt, gravel, and uneven terrain. Is the intent for the LOD cart system to be capable of traveling over these surfaces while carrying the full 20,000-pound payload, or will there be a reduced/derated maximum payload for operation on austere terrain?

A: Intent for this is to travel while carrying 20,000 LBS payload. Not anticipating reduced/derated payload.