DIVER-INSTALLED RECOILLESS PROPELLANT EMBEDDED ANCHOR (RPEA)

A PROPELLANT-ACTUATED ANCHOR USABLE AT ANY UNDERWATER DEPTH OR IN THE OPEN AIR, THAT IS ALSO LIGHT AND COMPACT ENOUGH FOR DEPLOYMENT BY DIVERS, IS DESIRED. WHERES EXISTING UNDERWATER EMBEDMENT GUNS USE REACTION VESSELS TO RESIST RECOIL FORCES UNDERWATER, THESE GUNS WOULD RECOIL HIGH INTO THE AIR IF FIRED ON LAND. A RECOILLESS GUN HAS BEEN SUGGESTED IN THE RFP. UNFORTUNATELY, THESE EXPEL GREAT VOLUMES OF GAS TO THE REAR, WHICH COULD BE PROBLEMATIC. VARIOUS SOLUTIONS ARE PROPOSED. THE GAS CAN BE DIMINISHED BY MULTIPHASED ENERGY RELEASE, WHEREBY A LOW-POWER CHARGE INITIALLY LAUNCHES THE ANCHOR PROJECTILE INTO THE SEAFLOOR, AFTER WHICH ONBOARD PROPELLANTS DRIVE THE ANCHOR DEEPER. ROCKET LAUNCH AND A CONVERTIBLE RECOILLESS/ CONVENTIONAL GUN IS DISCUSSED. EFFICIENT TIPPING PLATE ANCHORS WHICH MAY WORK AT LESS EMBEDMENT DEPTH ARE DESCRIBED. THESE AND OTHER INNOVATIONS, WHICH USED SINGLY OR IN COMBINATION, WOULD MAKE VERY HIGH CAPACITY ANCHORS POSSIBLE, CAPACITY.