Energy Absorbing Countermass for Shoulder-Launched Rocket Weapon

An energy-absorbing countermass for a shoulder-launched rocket weapon is provided. The energy-absorbing countermass is to be placed behind a rocket round in the launch tube. The device has a center cylindrical section formed using a crushable aluminum honeycomb material. A lightweight piston is atta...

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Bibliographic Details
Main Authors: Sanford, Matthew, DelGuidice, Thomas A
Format: Report
Language:English
Subjects:
BACK BLAST
COUNTERMASS METHOD
GUNFIRE
Guns
LAUNCH TUBES
PATENT APPLICATIONS
ROCKET ASSISTED PROJECTILES
Rocket Engines
ROCKET PROPULSION
SHOULDER LAUNCHED WEAPONS
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Summary:An energy-absorbing countermass for a shoulder-launched rocket weapon is provided. The energy-absorbing countermass is to be placed behind a rocket round in the launch tube. The device has a center cylindrical section formed using a crushable aluminum honeycomb material. A lightweight piston is attached to the forward end of the center section and a mass mechanism is attached to the rearward end. The mass mechanism is a cylindrical enclosure having opening leaves. An envelope containing frangible mass is located inside the enclosure. When a rocket round is fired, the piston compresses the crushable material and at the end of the compression stroke actuates the release of the frangible mass material. The result is that the exhaust blast of the rocket round is sufficiently alternate to allow firing of a rocket weapon inside a bunker or other structure.