Nasa expendable launch vehicle payload safety requirements: requirements table



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MOTOR VEHICLES


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General


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15.1.1. This chapter applies to payload project provided motor vehicle under their responsibility (e.g., leased, rented, etc.). For purposes of this chapter, the term motor vehicles encompasses conventional trucks, truck-tractors, trailers, tankers, and lift trucks and special-purpose trailers intended for exclusive use on the payload processing facility and launch site area and/or the range.

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15.1.2. These design, test, and documentation requirements apply to motor vehicles used for general purposes and to transport critical hardware or bulk hazardous materials such as toxics, flammables, combustibles and explosives, and hazardous commodities at payload processing facility and launch site area, on range roads and tracks.

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15.1.3. Hazardous commodities not listed in NFPA 497 shall be evaluated by the PSWG and Range Safety for appropriate hazard classification on a case-by-case basis.

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Motor Vehicles Other Than Lift Trucks


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15.2.1. General Design Standards

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15.2.1.1. Motor vehicles that do not meet DOT public transportation requirements shall not be permitted to transport hazardous materials at the payload processing facility and launch site area unless the vehicle is covered by a formal DOT exemption and is approved by the PSWG and Range Safety. Motor vehicles shall also comply with state and municipal regulations.

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15.2.1.2. Motor vehicles for the transport of explosives shall conform to AFMAN 91-201 and DoD 6055.9-STD when on Air Force property, and NASA-STD 8719.12 when on NASA property.

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15.2.1.3. Special-purpose trailers for range use only shall conform to AFMAN 91-201 and DoD 6055.9-STD.

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15.2.1.4. If the motor vehicle is not exempted from DOT and DoD requirements, the following data shall be submitted by the payload project before using the vehicles at the payload processing facility and launch site area:

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15.2.1.4.1. Design, test, and NDE inspection requirements for vehicles.

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15.2.1.4.2. FMECA in accordance with MIL-STD-882C on selected applications.

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15.2.1.4.3. Engineering documentation such as analyses (performance, stress, SFPs), tests, and inspections that justifies acceptance of DOT non-compliances based on “equivalent safety” or “meets DOT intent” criteria.

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15.2.2. Special-Purpose Trailers Used to Transport Critical or Hazardous Loads Design Requirements:

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15.2.2.1. Trailers and their ancillary support equipment such as outriggers and support stands shall be designed with a yield factor of safety of at least 2 based on limits loads and material minimum yield strength and 1.5 against overturning at worst case conditions expected over the transit route.

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15.2.2.2. Load test tags shall be attached to the trailer and marked with the following minimum information:

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15.2.2.2.1. Part number.

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15.2.2.2.2. Date and weight of most recent load test (or date of next load test).

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15.2.2.2.3. Rated load.

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15.2.2.2.4. Date of most recent NDE (or date of next NDE).

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15.2.3. Special-Purpose Trailers Used to Transport Critical or Hazardous Loads Tests:

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15.2.3.1. Initial Tests. At a minimum, the following tests shall be performed before first operational use at the payload processing facility and launch site area:

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15.2.3.1.1. Road/load test at 125 percent rated load at typical terrain and design speeds for selected applications.

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15.2.3.1.2. Volumetric and surface NDE shall be performed on all SFP components and SFP welds and 10 percent of non-SFP welds located in the load path before and after the road/load test.

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15.2.3.2. Periodic Tests. A periodic road/load test at 100 percent rated load shall be performed on trailers used to transport flight hardware (hazardous or non-hazardous) on the ranges every 4 years, with SFP weld inspection limited to surface NDE. Unless otherwise agreed to by the PSWG and Range Safety, the initial road/load test shall also be performed after a trailer has experienced structural modification or repair.

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15.2.4. Motor Vehicles Used to Transport Critical or Hazardous Loads Data Requirements. Initial and recurring data requirements shall be submitted in accordance with the requirements of Attachment 1, A1.2.5.17 of this volume.

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