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Aviation History
1951
1951 - 1235.PDF
766 FLIGHT French designers of large transport were among the many who showed interest in the 3,250 s.h.p. Bristol Proteus turboprop. The shapely nacelle form of this revealing large cut-away exhibit was preserved by a Perspex covering. The modified nacelle for the Proteus in the Bristol 175 could be examined in model form on the company's aircraft stand. A fine cut-away exhibit—and a remarkable feat of engineering: the Pratt and Whitney 23-cylinder Wasp Major. In the 3,500 h.p. class, it powers several important U.S. civil and military aircraft. FRENCH PISTON-ENGINES AT Name Hitpano-Suiza: H.S. 12Z ... Mini*:— 4DH4 4 DF284DC32AandC Potezs— 4D-01 4 D-316D-00 8 D-3012 D-30 S.N.E.C.M.A.:- 14 X.02 and 04 Salmson:— 9 ADB 5 AQ.017 AQ.03 9 NH 8 AS.02 Arsenal >— 12H Renault:— 125 Cylinderarrange- ment 12V 4H.O. 4H.O.4H.O. 4IL 4IL 6IL 8IV 12HO 14 2R 9R 5R 7R 9R 8IV 121V 121V Capacity (litres) 36 1.37 2.80 3 5.8S 5.85 8.77 11.7 17.6 19 2.98 3.92 5.49 9.90 1X66 70 12 Take-off (h.p.) 1,300 — — 80 160 220 240 450 650 820 59 90 150 203 250 2J50 574 (r.p.m.) 2,650 — 2,610 2.520 2.600 2.530 2.800 2,800 3,100 2.350 2.550 3.100 2.150 2.000 3,250 3,300 THE SALON Cruising Power (h.p.) 820 35 65 75 94 130 140 270 405 410 45 79 135 175 230 1,100 296 (r.p.m.) 1,950 2,600 2,420 X575 2,120 2,200 2,120 2.350 2,350 2,350 2,220 2,440 3.000 2.050 1,940 2,400 2,800 Weight (Ib) 1,365 101 185 190 315 366 485 738 970 1,311 174 213 330 359 555 2,100 1,159 FRENCH GAS TURBINES ON SHOW Name Hispmno-SuiTa' Nene Nens (reheat) .. T»y S.N.E.CM.A.:— Atar 101 Atar101E AtariOIF T.B. 1000 T.B. 1000A Etcopctte Turbomecas— Pimene Palas Marbore 1 Marbore II Atpin 1 ... Oredon Artoust* Take-off Power (Ib or s.h.p.*) 5,070 6,500 6,280 6,170 7.275 8.815 1,450* 2.000* 22 220330 661 838 485 160* 280* Cont. Power (Ib or i.h.p'.) 3,450 — — 5,071 _ 1,050* — 176 304 518 705 353 130* 160/180* Specific Coiuumpt. (kg/hr/kf) 1.05 1.95 1.06 1.0 __ 0.75 1.4 1.08 1.12 1.00 1.08 0.58 0l9 Bare Weight (ft) 1,608 2.200 1,970 1,970 _•» 1,060 990 10.5 92 132 _ __ _^ 185 Immediately above is the magnificent Rolls-Royce Avon, making its first show appearance. Visible are the tangentially disposed struts in the intake, • the variable-pitch vanes (referred to last week) and the pneumatic jack which operates them. Maximum thrust quoted for this mark is 6,500 Ib. (Below) Unmistakably bearing the Rolls-Royce stamp: the Tay, as built by Hispano-Suizo. Note the large-diameter turbine casing and the combustion- chamber construction. A thrust of 6,280 (fa is quoted in France. (Below, right) This cut-away Hispano Nene, identical with the British product except for accessories, and with French materials to the same specification, forms an interesting comparison with the Tay. The thrust figure is 5,050 Ib.
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