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Universal Defense
For Military Equipment, Consultation & Construction
 


Cargo Releases


The unique feature of the UDME and associates Cargo Parachute Releases are that they are "load relief" actuated. Upon main parachute opening, tension forces are transmitted through the cargo release, to the payload. "Tension" activates the special delayed arming feature. The delay is necessary to prevent premature disconnect of the payload during the intial unstable parachute deployment sequence. Only after the main parachute is fully inflated, is the cargo release "armed" and ready for separation. Upon ground of water impact, the cargo release disconnects, separating the payload from the parachute.

The entire family of UDME and associates Cargo Parachute Releases are temper proof, maintenance free, and are totally sealed against moisture, dirt, sand and dust.

Complete installation and operational instructions are published in:

  1. US ARMY FM-10-542

  2. US AIRFORCE TO-13C7-51-21

  3. NAVSEA TO300-AW-MM0-010

The Automatic Cargo Parachute Release is load relief actuated. It is by far the most reliable and versatile release available. The unit is completely sealed against moisture, dirt and tampering. It does not require any kind of adjustment, setting or arming by the user.

OPERATION

Upon main parachute opening, tension forces are transmitted through UDME and associates cargo release to the payload. "Tension" activates the special delayed arming feature. This delay is necessary to prevent premature disconnect of the payload during the initial, unstable parachute deployment sequence. After the system is stable under the main canopy, the release becomes a load-tension locking mechanism that will retain the cargo in the event of parachute oscillation, as long as forces along the parachute, cargo release, and the payload are in equilibrium. Upon ground impact, this equilibrium is broken, and the consequent load reduction allows the release to separate, allowing the parachute to free itself from the payload.

FEATURES

  1. Safe during descent in any weather

  2. Complete simplicity; needs no adjustments

  3. Sealed against moisture and dust

  4. Positively locked during opening shocks

  5. Disconnects immediately when load comes to rest

  6. Re-usable without dismantling or use of tools

  7. Operates in any orientation

  8. Arming delay starts when tension is applied between the load and the parachute



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