FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1956
1956 - 0711.PDF
ZJUL... SaabJ29F. : MILITARY AIRCRAFT 1956 Fighters SINGLE-SEAT, LAND-BASED incorporation is reported to have given a notable increase in availablelift, a decrease in manoeuvring drag, and better stability at high lifts. The wing has two root-to-tip spars which, with the immensely thick,screwed-on tapered skin, form a massive box. Each of the ailerons is made in two parts and is fully powered by irreversible jacks. ThePratt and Whitney J57 (P-7, F-21 or F-39) has an afterburner, and takes in air through a distinctive nose intake of roughly oval cross-section, the duct remaining flattened as far back as the leading edge of the wing. Fuel tanks occupy the entire volume under the engineand centre fuselage except for the very bottom which is devoted to wheel stowage and the wing carry-through structure. The fin area wasincreased as a result of serious aerodynamic trouble experienced in the earlier stages of development, and the slab tailplane is mounted very lowon the fuselage. Most of the electronic equipment is housed forward of the cockpit, where cooling is provided by a refrigeration circuit fed frominside the duct. The built-in armament is four 20 mm M-39 guns having a combinedrate of fire well in excess of 6,000 rounds a minute. With only F-100C includes a Minneapolis-Honeywell automatic pilot. With onlytwo auxiliary under-wing tanks (more are possible) the F-100C carries about 1,745 U.S. gallons. Among possible under-wing loads are packseach containing forty-five 2.75in Mighty Mouse rockets. It was on an F-100C, on August 20 last, that a world's high-altitude supersonic speed record of 822.135 m.p.h. was established at 35,000ft. (This has subsequently been handsomely beaten by theFairey F.D.2 research aircraft.) Indicative of the complexity of this massive fighter, which typifiesa new generation of single-seaters, is the reported figure of 50 hours of ground work needed for each hour of flight. The correspondingfigure for the F-86D, with its all-weather equipment, is given as 46 hours, and for the war-time piston-engined Mustang 13 hours. Span, 38.78ft; length, 47ft; gross weight, without external stores,28-29,000 Ib; with external stores, over 35,000 Ib. North American F-100D Super Sabre Radar-equipped for all-weather capability, the "Dog" variant of the F-100 is reported (though not confirmed) as having a flap-blowing system utilizing bleed-air fromthe engine compressor. The makers describe it as "an air-superiority fighter with fighter/bomber capabilities" and claim a service ceiling ofover 50,000ft. A probe-and-drogue flight-refuelling system is installed in view of the intended rules of fighter/bomber or escort fighter, and aMinneapolis Honeywell automatic pilot is standard. Armament is four M-39 guns (20 mm). The first prototype flew on January 24th lastand deliveries should be made to the U.S.A.F. during the closing months of this year. North American F-100F A two-seater development, with "combatand training potential." Mig-17i. North American F-107A Originally known as the F-100B, thisfighter is an all-weather intercepter, powered with a Pratt and Whitney J75 turbojet of some 15,000 lb static thrust and delivering about 21,000 lbwith an afterburner. A special variable-inlet duct embodying a flat shock-forming wedge has been developed for this machine.Republic F-84F Thunderstreak The Thunderstreak is a fighter/ bomber extensively used by the U.S.A.F. and NATO air forces; itis also considered under the heading "Ground Attack." Though incapable of supersonic speed on the level, it achieves a Mach numberof 1.175 in the clean condition at a shallow angle of dive. Armament is six 0.5in M-3 Browning-pattern guns. Provision is made for boom-type refuelling, the connection lying under a sliding panel in the port wing. Internal fuel capacity is 570 U.S. gallons, and the maximumfuel weight for ferrying without external war load, is 1,930 gallons, Among advanced aerodynamic and structural features of the laterThunderstreaks is a slab tailplane. With external stores these machines frequently operate at all-up weights of the 25,000-27,000 Ib order.The powerplant is an American-built Armstrong Siddeley Sapphire —the Wright J65-W-3 or -W-7 of some 7,200 Ib thrust, withoutafterburner. Though at one time it was intended to install a built-in liquid-fuelrocket for take-off assistance, this project does not appear to have gone forward, although provision is made for four RATO bottles each of4,000 lb thrust attached by a "collar" device. A recent fitment is a new type of 16ft braking parachute with a retarding force of 8,000 lb,which is claimed to help the aircraft to stop in 2,400ft. This is about 1,000ft less than the normal landing run. U.S.A.F. orders for the F-84F, and of its reconnaissance derivativethe RF-84F (q.v.), were cut by some ten per cent earlier this year "in the light of the availability of more advanced aircraft of the century series." Span, 33ft Tin; length, 43ft Sin. Republic XF-103 Very little has been officially disclosed concerningthis fighter beyond a recent statement by the Commander of Air Research and Development Command to the effect that "extensive tests"were conducted on the machine during 1955. (Note that no specific refer- ence is made to flying tests). It was added that the XF-103 wasoriginally designed as an all-weather intercepter to accomplish a mis- sion similar to that of the F-102. However, "superior performanceestimates, resulting from an advanced design concept," led to a longer development period than that needed for the F-102, and the XF-103is now being used as an "experimental weapon system." Unofficially it is reported to be powered with a Wright J67 turbojet of 15,000 Ibthrust, plus a ramjet using the same airstream. The pilot is able to direct the flow from one engine to the other by means of vanes. Apilot periscope has also been mentioned. Republic F-10SA Precursor of the production type F-105B, this isa fighter/bomber with Pratt and Whitney J57 turbojet. The first proto- type (since lost) flew last October. Republic F-10SB Intended as a successor to the F-84F and havinga reconnaissance variant in the RF-105B, this development has a Pratt and Whitney J75-P-3 turbojet. Characteristic features are short, thin,swept wings; a long cylindrical area-ruled fuselage; wing-root intakes, permitting radar to be fitted in the pointed nose; and a one-piece flyingtail, set low on the fuselage. All internal fuel is carried in the fuselage. A production order has been placed. Ryan X-13 Reported designations for the direct take-off fighter/research aircraft now under development by Ryan are XF-109, Type 69 and X-13—the last officially confirmed. A delta, it is powered with aBritish-built Rolls-Royce Avon delivering, it may be supposed, well in excess of 10,000 lb of thrust for take-off, and all-up weight has beenreported as 8,000 lb. Preliminary tests are said to have been made with a special undercarriage, permitting near-horizontal landings and take-offs. The X-13 is the subject of a 7 million-dollar U.S.A.F. contract FRANCE Breguet Taon In view of its primary r61e of tactical support, thislight fighter/bomber, to the NATO specification, is dealt with under "Fighter/bombers and Ground Attack." Marcel Dassault Mystere IIC Dating from 1951, this single-seatintercepter is far advanced in production. After three prototypes came 17 pre-production machines, followed by the main contract for 150, ofwhich 45 had been delivered by February last. The turbojet is a S.N.E.C.M.A. Atar 101D-1 of 6,615 lb thrust. Empty and gross weightsare, respectively, 11,510 lb and 16,440 lb, and the armament is two
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
