MIL-STD-209 Lifting And Tiedown ProvisionsThis standard establishes dimensional limits, design considerations, positioning requirements, and strength requirements for lifting to include helicopter sling load HSL and tiedown provisions for lifting or tying down tanks and other tracked vehicles, tactical wheeled vehicles, helicopters, and other military equipment shipped assembled or disassembled in unboxed or uncrated condition, and for restraining cargo or accessories to such equipment. The lifting and tiedown requirements in this standard are necessary to permit compatibility between military equipment and the transportation systems used for deployments.

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MIL-STD-209K

floor space possible and that tiedown provisions are compatible with aircraft restraint systems. To accomplish this, equipment weighing over 10,000 pounds that requires transport on USAF cargo aircraft shall be equipped with supplemental air transport tiedown provisions. The requirement for supplemental air transport provisions is in addition to meeting the requirements for equipment tiedown provisions used for other modes of transport.  See paragraph 5.6 for the detailed requirements of supplemental air transport tiedown provisions.

4.13  Testing.

A baseline Non-Destructive Test (NDT) of the welds on the provisions and the connecting structure around the provisions shall be performed prior to applying paint to the equipment, and prior to any provision testing.  All provisions shall be tested attached to the equipment.  Testing may be accomplished using a frame assembly, provided all load-bearing structures (structural components in tension and compression) are

included in the frame assembly.  For test purposes, only wire rope, wire rope with a thimble, a shackle, or a chain attached to the provision shall be used.  The loads applied during testing shall not be less than the design limit load requirement.  When

field experience shows that the provisions are being deformed during transport, analysis and retesting of the provisions shall be performed to determine the weakness of the provisions.  If the equipment can be transported in two orientations, then the provisions must meet the requirements of this standard and tested in both orientations.

4.14  Transport on Navy/Marine Corps aircraft.

Internal transport on Navy/Marine Corps aircraft require restraint above that

required for other modes of transport.  See appendix D for further guidance in designing for restraint aboard these transportation assets.

4.15  Option for Type II equipment.

If Type II equipment is allowed by the equipment specification to not have lifting, equipment tiedown, or multipurpose provisions, the contractor shall specify, to the materiel developer, points on the equipment to be used for lifting and tiedown.  The selected points shall meet the requirements in sections 4 and 5 of this standard and shall require the approval of SDDCTEA or the appropriate service transportability agent. If holes are used as tiedown provisions, they shall be formed in the main structural members and shall meet all of the requirements of Figure 3.  The location of points

used for lifting and tiedown shall be shown on the data plate as required in paragraphs

5.7.1 and 5.7.2.

4.16.  Large cargo tiedown provisions.

Equipment with a payload capability greater than 5,000 pounds shall be equipped with large cargo tiedown provisions.  A "large cargo tiedown provision" can be used as a substitute for a "cargo tiedown provision" if the large cargo tiedown provision can meet the requirements of both types of provisions (see paragraphs 5.4 and 5.5).

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