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Hajile
Hajile was an experimental project developed by the British Admiralty's Directorate of Miscellaneous Weapons Development (DMWD) during the final years of Second World War for slowing the landing of air-dropped supplies with rockets.
==Development==
The project was initiated by a request from the Army for a method of dropping heavy equipment and vehicles from aircraft at high speed, retaining the materiel's terminal velocity for as long as possible in order to minimise drift and damage from anti-aircraft gun batteries. It was further required that the materiel suffer only minimal or no damage from landing, and once dropped be ready to deploy within minutes.
The high falling speed ruled out parachutes, so the DMWD came up with the idea of loading the drops onto a platform surrounded with cordite rockets. These would fire at the last instant to decelerate the materiel to a safe landing speed. The initial test produced the project's codename; as the rockets' exhaust engulfed the apparatus in a plume of smoke and fire, an attending officer, Captain G. O. C. "Jock" Davies, remarked "Look at it! It's Elijah in reverse", referring to the biblical prophet's ascension to Heaven in a "chariot of fire".〔Gerald Pawle (1957), ''Secret Weapons of World War II'' (original title, ''The Secret War''), 1967 reprint, New York: Ballantine, Part II, "The Enemy under the Waters", Ch. 15, "The Mantle of Elijah", pp. 202-203.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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