Accession Number:

ADD008428

Title:

Automatic Parachute Release System.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1981-03-03

Pagination or Media Count:

7.0

Abstract:

The present invention relates generally to a water-activated parachute release system and, more particularly, to a control circuit which automatically activates the release mechanism when the parachute harness buckle is immersed in a fluid medium that has a specified conductivity. A parachute release arrangement which is mounted on the parachute buckle utilizes a pair of water sensors that are activated when they are immersed in sea water. Activation of one sensor results in the connection of a battery to a DC-to-DC converter which raises the battery voltage to a substantially higher level for charging a storage capacitor. If the other sensor is also activated, this storage capacitor is subsequently discharged through an electrical explosive device when the voltage across it reaches a predetermined value. The resultant explosive force disengages a release lever in the buckle from the parachute strap and allows the detachment of the parachute. A checkout circuit is provided for monitoring the standby status of the control circuit.

Subject Categories:

  • Gliders and Parachutes
  • Guided Missile Launching and Basing Support

Distribution Statement:

APPROVED FOR PUBLIC RELEASE