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Aviation History
1963
1963 - 1167.PDF
Air-Ciishion Vehicles FLIGHT International supplement, 27 June 1963 WATER TIGHT BULK HEAD 4 PLACES AY GUARD NO H.P. MARINE ENGINE 20,000 CFM AXIAL FAN T-29 4GINE JET FUEL TANK 478 GALS VEE BEIT DRIVE >UT BOARD DRIVE MOVABLE «Al THE CAPTURED AIR BUBBLE SINCE PUBLICATION of the basic design of SR.N1 in 1959, according to the patented inward-facing peripheral-jet idea of Mr C. S. Cockerell, many in ventors—many thousands, in fact—have sought to find a better scheme. In 1960 the captured air-bubble principle was conceived at the US Naval Air Deve lopment Center at Johnsville, Penn sylvania, and CAB is now being in vestigated jointly by NADC and the Naval Air Engineering Center. The following outline is based on a paper read at the recent SAE/ASNE meeting by Allen G. Ford of NADC. The basic idea is that an ACV moving over water need not have to resupply so much lost cushion air as is commonly the case. The sidewall craft (pages 92-95) curtails air escape along the sides. The CAB vehicle attempts to minimize losses at front and rear also, by means of "low angle- of-attack movable planing surfaces" in Schematic operation of CAB-type craft: A, at rest; B, at hump speed; C, at maximum speed General arrangement of the XR-1 test craft, which is also shown in the heading to this article r "mm XR-1 Crew, 4; length, 52ft; beam, 11 ft; bubble area, 34ft by 10ft; gross weight, I4,000lb; fan engine, 110 h.p. Chrysler Ace; propulsion, I,OOOIb-thrustContinental J69-T-29 turbojet. V'Wi'" : : . • < ••„••' . ; • -. m ! j 96
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