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Aviation History
1956
1956 - 0724.PDF
724 FLIGHT, 8 June 1956 MILITARY AIRCRAFT 1956 Ground Attack and Fighter/Bombers is equipped with a Minneapolis-Honeywell automatic pilot developedexpressly for supersonic flying, and this, it is claimed, enables the pilot to concentrate on navigation or other phases of his mission and relieveshim of fatigue. Also installed is "an improved method of accurately delivering bombs to a target"; probe-and-drogue refuelling system anda North American Autonetics Division yaw damper system. Gun armament is four M-39s of 20 mm calibre. In Flight's detailed description of the F-100 (May 20th, 1955) therewas a diagram, based on official information, showing typical under- wing loads for the "A" variant, and these may be supposed to apply tothe "D" also. They included 750 lb, 1,000 lb and 2,000 lb general-pur- pose bombs; 750 lb napalm tanks; M-26 or M-28 chemical tanks;streamline stores described as 500 lb "Ex 12", 1,000 lb "Ex 10" and 2,000 lb "Ex II"; packs of forty-five 2.75in folding-fin rockets; and 200and 275 U.S. gallon fuel tanks. For maximum range the F-100 carries two "low-speed" fuel tanks andtwo "unlimited" tanks. The low-speed tanks are drained during take- off and climb to operating height and are then dropped before the air-craft works up to high Mach numbers. The unlimited tanks can be retained during supersonic flight.The "special" (nuclear) weapon has a high drag trajectory.to permit the launching aircraft to get well clear before detonation. It is thought,however, to be streamlined until released. Republic F-84F Thunderstreak The Thunderstreak can carry anyof 22 different combinations of armament and auxiliary tanks, made up from rocket projectiles, bombs of 2,000 lb, 1,000 lb or 500 1b nominalweight, and 230 U.S. gallon or 450 U.S. gallon fuel tanks. Principal combinations are 24 rockets or four bombs or four tanks (two large, twosmall), or three tanks and a nuclear weapon. Maximum rocket load is 32 x 52in and built-in armament is six 0.5in guns. To assist take-off at heavy load four RATO bottles, providing 4,000 1bthrust for 13 seconds, can be attached by means of a jettisonable collar. Experiments have also been made on a machine of this typewith Goodrich inflatable rubber wing surfaces. Air is pumped in under the leading edge with the object of modifying the section to reduce take-off and landing speeds and distances. Republic XF-84H Although no orders have been announced for afully operational version of this turboprop aircraft, the makers' claim that it "meets requirements for a U.S.A.F. low-level fighter/bomber orNavy carrier-based dive domber" is certainly no idle one. The primary function of the machine at present is the testing of supersonic airscrews,and it has been shown to combine high speed and rate of climb with quick take-off. The turboprop is an Allison XT-40-A-1, developing5,850 equivalent shaft horse-power for take-off and designed to take an afterburner. When this is installed the "H" will become the firstaircraft to have the turboprop/reheat combination. Engine air is taken in through the wing-root ducts. Other design features are a slab tail- plane mounted at the extreme tip of the high fin and a Republic-designed "vortex gate"—a triangular fin mounted just aft of the cockpit canopy partially to neutralize the tremendous torque of the airscrew.An automatic airscrew governor maintains constant r.p.m. and speed changes are controlled by automatic pitch change. Reverse pitch is.available to brake the landing run. The makers claim a range of more than 2,000 miles (which should be easily attainable) and a service ceilingof over 40,000ft. Span, 33ft 6in; length, Sift 6in. Republic F-105B See under fighters. Very heavy attack loads arepossible. : FRANCE Breguet 1001 and 1100 Taon Designed to the NATO light fighter/ attack specification, these machines wiD carry the prescribed armament of two 30 mm guns with 120 rounds apiece, two 500 lb bombs, or two 770 1b napalm tanks, or twelve 3in rocket projectiles. Marcel Dassault Barougan The name Barougan has apparently been applied to a special ground-attack version of the straight-wing Ouragan (predecessor of the Mystere) as fitted with a special double- wheel undercarriage for ground attack operations from poorly surfaced airfields in North Africa. Marcel Dassault Mysteres Like most other fighters of their class, the Mysteres can carry bombs, R.P.s or napalm tanks. Marcel Dassault Mystere 22 This light fighter/bomber is powered by two Turbomeca Gabizos and is designed to a French Air Force specification. Air brakes are mounted far forward under the fuselage. Marcel Dassault Mystere 26 Generally similar to the Mystere 22, this machine conforms to the NATO light ground-attack specification and is to be powered with a Bristol Orpheus turbojet. S.N.C.A.S.O. 4050A Vautour The "A" suffix denotes the attack version of the Vautour, the first prototype of which flew in December 1953. The aircraft is laid out as a single-seater and is armed with four 30 mm guns and various combinations of rocket or bomb loads, includ- ing six 1,000 lb bombs which are extended from the bomb bay before release. A picture on page 722 shows a Vautour with rocket pods. S.N.C.A.S.E. 5000 Baroudeur Though quantity production does not now appear likely, a "pre-series" of three Baroudeur trolley-launched skid-landing ground attack aircraft has been built for the French Government in addition to two prototypes. Two examples have the Atar 101D-3 turbojet; the third has an Atar 101E. The launching and landing sequence developed for the Baroudeur is now well known. Briefly, the machine is mounted on a trolley (rocket- assisted when necessary) which runs true, with or without load, over rough ground. Mounting on a trolley takes about a minute and a half, by means of a jeep which uses its power to winch the machine over spiral rollers. When "unstick" speed is attained a cockpit light warns the pilot when to release the trolley. He thereupon eases back on the control column and the aircraft flies off. The trolley is automatically arrested in less than a hundred yards, Full-load take-offs of less than a thousand yards are possible. Landing is effected on two main skids and a rear skid—all retractable—and each skid has a braking hook. The trolley is light enough to be carried in flight if need be. Operation is Rocket-assisted take-off by a Republic F-84F Thunderstreak.
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