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Aviation History
1946
1946 - 1341.PDF
JULY IITH, 1946 FLIGHT 39 NOTES FROM FARNBOROUGH or the Martin Baker F18/39 could achieve in racing condition. On the rare occasions when the Martin Baker could be spared for demonstration this cleverly designed, Griffon-engined, prototype has always attracted favourable comment. Refer- ence was made last week to its slow- flying qualities, but these have not prejudiced high-speed performance: at 20,000ft the Griffon 83 gives ,this 11,500 lb machine a speed of 460 m.p.h. Throttled to 225 m.p.h. a range of 1,200 miles is attainable. In the design of the new Short Sturgeon two-seat naval deck-landing reconnaissance aircraft, speed has been subordinated to other qualities; even so the "over 300 m.p.h." placard displayed near this twin-Merlin shoulder-wing monoplane must have been '' vetted " by a particularly reticent mem- ber of the Silent Service. No doubt the compact battery of three cameras will be supplemented by the latest radar equipment. Students of military aircraft were impressed by the R/P and torpedo-laden Bristol Brigand torpedo-fighter Mk. I— not a flashingly spectacular type, but obviously combining a superior performance with the characteristics which made the Beau- fighter so popular. The Brigand is equipped for dive- bombing and has an even wider field of application. It is diffi- cult to realize that this well-proportioned machine weighs nearly 40,000 lb, and that without torpedo it attains 365 m.p.h. at 12,oooft. High speed at low and medium levels is of great importance in an aircraft of the Brigand's class, and is made possible by the characteristics of the Centaurus 57 engines. With torpedo the range is 2,200 miles, but this can be increased to 3,200 miles with wing overload tanks. Performance and armament data for other military types was quoted at R.A.E. with comparative free- A Griffon-Seafire on one of the R.A.E. accelerators. Launchir.and the acceleration run 65 feet. The two tow ropes are dom. The following are of particular interest: Hamilcar Mk. X.—Two Mercury 31 engines. All-up weight 47,000 lb. Speed 130-150 m.p.h. Army load 17,500 1b. Hastings C Mk. I.—Four Hercules 101 engines. All-up weight 75,000 1b. Maximum speed 343 m.p.h. at 21,500ft. Range 2,850 miles. Load 9,300 lb. Lancaster ASR Mk. III.—Four Merlin 28, 39 or 224. All-up Ci ibweight 68,000 1b.lifeboat Mark IT A.- SIGHTINGPOSITION 2x2Omm. An experimental Lancaster has two barbettes, each with two 20 mm. guns, controlled from a tail position. , 39 4. Allup Range 2,200 miles. Carries airborne Meteor F Mk. IV.—Two Derwent V gas tur- bines. Maximum speed 585 m.p.h. at sea level. All-up weight 14,000 lb. Maximum range with drop tanks 1,270 miles. Bomb load 2 x r,ooo lb. Mosquito NF Mk. 36.— Two Merlin IT3/114. All - up weight 23,500 1b. Speed 397 2,110 miles. Bomb load Close spacing of the Merlin engines is one of the advan- tageous features of the Short Sturgeon for carrier operation. The airscrews are contra-rotating Rotols. m.p.h. at 25,000. ft. Range 1,000 lb. Prentice Mk. I.—Elementary trainer. One Gipsy Queen 31 or51. Weight 3,850 lb. Maximum speed 170 m.p.h. at 6,500ft. Estimated range 480 miles at 140 m.p.h. at 5,000ft. Queen Martinet Mk. I.—Radio-controlled pilotless target air-craft. One Mercury XXV. Weight 6,750 lb. Range 600 miles at no m.p.h. Seafang 32.—One Griffon 89. Weight 10,574 lb. Maximumspeed 447 m.p.h. at 25,000ft. Bomb load 2 x 1,000 lb. Seaford.—-General reconnaissance flying boat Four HerculesXIX. Weight 78,000 lb. Maximum speed 210 knots, bomb load 2,000 lb. Armament two fixed 0.303 guns inbow, two 0.5 guns in bow turret, two 2c* mm guns in mid turret, two 0.5 guns in stern and two 0.5 side guns. Sea Hornet Mk. XX.—Long-range Naval fighter. Two Merlin130/131. Weight 18,226 lb. Speed 400 knots at 18,700ft. "Combat" range with two 100-gallon tanks, 1,120 seamiles at 236 knots Bomb load 2x1,000 lb. R/P load 8 x 60 1b. Sea Otter ASR Mk. II.—Amphibian flying boat. One Mercury30 engine. Weight 9,250 lb. Speed 133.5 knots. Range 726 sea miles. Spiteful XIV.—One Griffon 69. Weight 10,200 lb. Maximumspeed 475 m.p.h. at 26,000ft. Bomb load 2x 1,000 1b. Spitfire 24.—One Griffon 61 Weight 10,150 lb. Maximumspeed 460 m.p.h. Range without drop-tanks 860 miles. Bomb load 3 x 500 1b. Tempest VI.—One Napier Sabre Va. Weight 12,275 Ik-Maximum speed 436 m.p.h. at 14 oooft. Range 470 miles 1,200 miles with 2 x 45-gallon drop tanks). Bomb load2,000 lb. R/P load 4 x 305 lb. By some it was noted with concern, by others with doubt,that the programme credited the Stafang 32 with a range, without drop tanks, of 276 miles, whereas the quotation forthe Spiteful XIV in the same condition was 890 miles. Again,
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