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Aviation History
1964
1964 - 1462.PDF
809 FLIGHT International, 14 May 1964 In this side elevation on the ground the Buffalo looks very like its piston-engined predecessor; but our artist who prepared the accompanying three-view drawing estimates the number of airframe components common to the two aircraft at no more than 5 per cent. Comparison of the drawing with a three-view of the Caribou reveals a completely different wing plan, tail unit and largely re-engineered fuselage De Havilland Canada owe much to the US Army, who were major customers of the DHC-2 Beaver, DHC-3 Otter and DHC-4 Caribou, and without whom the Caribou, at least, might never have got off the drawing board. Despite pressure from the home industry, the Army agreed to sponsor the DHC-5 Buffalo, and a number are likely to go into that Service's inventory with the designation CV-7A (the Caribou is the CV-2A). The aircraft which flew on April 9 is the first of four prototypes built under a cost-sharing agreement which splits the development bill equally between the US and Canadian Governments and the manufacturer. The two Governments have also agreed to share production, and delivery to the US Army is scheduled to begin in 1965. De Havilland Canada DHC-5 Buffalo (US Army CV-7A). Mission STOL tactical transport. Powerplant Two General Electric T64-I0 turboprops, each rated at an initial 2,850 e.h.p., driving 14ft 6in Hamilton Standard propellers. Dimensions Span, 96ft; length, 77ft 3±in; height, 28ft 8±in; track. 30ft 6in; usable Cabin length, 377in; floor width, 93in; maximum interior width, IO5in; minimum height to ceiling, 78in; usable volume, 1,580 cu ft. Weights Operational empty (corresponds to civil APS), 23,370ib; maximum payload, 10,6301b; maximum internal fuel, 13,5501b; maximum take-off, 38,0001b; maximum landing, 36,5001b; zero-fuel limit, 34,0001b. Performance (estimated) Take-off to 50ft (38,OOOIb), 1,225ft; landing from 50ft (36,5001b), |,050ft; cruise at 10,000ft, 100% normal rated power 232kt, 90% 223kt, 80% 2l2kt, 60% 184kt and 53% (long-range) I72kt; rate of climb, 1,950 ft/min two engines, 610 ft/min one engine; service ceiling, 29,000ft two engines, 14,000ft one engine; range/payload, including 6001b crew and cargo-handling equipment, 10,6301b 460 n.m., 8,0001b 880 n.m., 4,0001b 1,335 n.m. and zero for 1,761 n.m. Maximum •erry range with auxiliary tanks exceeds 3,000 miles. I his T64 engine mock-up is the display wibit currently being used by Bristol »'°«'ey Engines Ltd, the British "nsees. '* <s pictured here because - 'os ff>e some configuration as the g £'° turboprop fitted to the DHC-S
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