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Aviation History
1954
1954 - 1865.PDF
832 FLIGHT Military Aircraft 1954 Attack Potez 75 (Potez 8-D32). less secret, though they are said to be very simple, extremely accur ate and, of course, armour-piercing. Span, 42ft llin; length, 30ft; max. speed, 171 m.p.h.; take-off run, 190 yd; landing run, 180 yd. S.E.5000 Baroudeur. A wholly new approach to the problem of the high-performance ground-attack aircraft for operation from advanced bases, the Baroudeur takes off from a jettisonable trolley and lands on skids. The trolley—a remarkable piece of work, which took a year to develop—has a steel-tube framework and three wheels with large-diameter medium-pressure tyres. The twin front wheels are free to caster for ground handling and the main rear wheels have differential brakes, operated from the rudder pedals. For take-off two or four rockets are attached to the trolley, which runs true, with or without load, on rough ground. The makers claim that the Baroudeur can be mounted on its trolley in just over a minute by means of a jeep which uses its power to winch the machine up over spiral rollers; these automatically centre the fore and aft "keel." At die rear are side pads for steadying, and a front support holds die nose while this is locked on to the trolley by means of a bomb slip. For take-off the pilot opens up the Atar turbojet and fires the rockets. When unstick speed is attained a warning lamp lights and the pilot releases the bomb slip; thereupon he eases back on the control column, the front support following die nose as it rises, and the aircraft flies off. The brakes on the main wheels are automatically applied and arresting tines are lowered into the ground to stop die trolley in less man 100 yd. An ingenious feature of the tines is that they are double-ended and are mounted at their mid-point on a spring-loaded pivot so that, should one encounter a stone, it will turn over and present its other end instead of breaking. It is claimed to be possible to take off with full load in less than 1,000 yd. No weights have been disclosed, but die equipped weight is between 1,500 kg and 2,000 kg less man that of the Sabre. Span is 32ft lOin, length 44ft 3in. S.E. Grognar d. Although this twin-Nene attack aircraft is not being developed, it is one of die few machines of its class for which intended armament loads may be quoted. Representative of these (additional to two Hispano- Suiza Type 603 30 mm guns, each with 200 rounds) are: 16 rockets of over 140 lb each in the fuselage bay; 200 9 lb anti-personnel rockets; diree 750 lb bombs; or four 770 lb napalm bombs. SWEDEN Saab-32 (A-32) Lansen. This two-seater was built to meet die requirements of the Royal Swedish Air Board for an aircraft primarily intended for attacks on ground and sea targets. The prototype flew in November 1952, powered with an early mark of Rolls-Royce Avon, and production machines will have Swedish-built Avon RA.7Rs, with afterburning. A prototype has exceeded Mach 1, under complete control, during early dive tests. The wing has 35 deg of swecpback at 25 per cent chord, hydraulically boosted ailerons, and Fowler flaps; the automatic leading-edge slats of the first prototype have now been replaced by boundary-layer fences. The fuselage incorporates four air brake sections at the rear, and the Avon RA.7R (which bears the Swedish designation RM5) takes in air through flush intakes. Ejector seats of Saab design are provided in the pressurized cock pit. External provision for bombs, rockets or guided missiles, and an unspecified gun armament is built into the fuselage. All-up weight is about 22,000 lb, span 42ft 8in, and length 49ft 2in. Saab A-29. This is the specialized ground-attack version of the J-29 single-seat fighter already referred to, and has under - wing provision for offensive stores. U.S.A. Chance Vought A2U-1. Derived from the F7U-3 (itself capable of being catapulted with about 5,500 lb of bombs), the A2U-1 can be catapulted with more than 9,000 lb. It has longer range and increased armour protection. Fletcher FD-25B Defender. The chcap-to-buy, cheap-to-operate Defender weighs a mere 2,700 lb and is powered with a Continental E225 engine of only 250 h.p. A maximum sea level speed of 187 m.p.h. and a landing speed of 45 m.p.h. are claimed, and the sea-level rate of climb is quoted as 1,725 ft/mm. Take-off distance is 330ft. Possible armament combinations (in addition to two 0.3in guns with 1,000 rounds of ammuni tion each) are forty 2.75in rockets, four 5in rockets, two 40 U.S. gallon napalm tanks, or two 250 lb general-purpose bombs. North American F-86F. Now extensively employed by fighter/bomber wings of the U.S.A.F., the F-86F has under-wing tank pylons mounted farther outboard than those of preceding Fs, S.N.CAS.E. 5000 Baroudeur (S.N.E.C.M.A. Atar). The aircraft is shown leaving its launching trolley. VX
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