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Aviation History
1953
1953 - 1176.PDF
332 FLIGHT, 4 September 1953 BRITISH POWER UNITS 1953 TURBOJETS, TURBOPROPS, COMP9UNDED UNITS, AND ROCKETS Maker's nam" ARMSTRONG SIDDELEY; Mamba A5M3 Double Mamba ASMD1 Python ASP3 ... Sapphire ASSa6 Snarler ASSnl Viper ASV3 ... BLACKBURN TURBOMECA; Marbore II Palas BRISTOL: Olympus BOI 1 Proteus 755 ... DE HAVILLAND: Ghost 50 Mk 2 Goblin 35 Gyron Sprite Super Sprite NAPIER Eland Nomad 6 ROLLS-ROYCE. Avon Mk 502 Avon RA7 Avon RA14 ... Conway Dart Ml< 505 Derwent RD8 Nene RN3 ... AVRO CANADA Orenda TR5 ... No. of com pressor stages 10 10- 14 n.r. — 7 1 1 n.r * 12 + 1 1 1 n.r. 10 12 n.r. n.r. n.r. n.r. 2 1 1 10 No. of com bustion chambers 6 62 11 Ann. 1 Ann. Ann. Ann. n.r. 8 10 16 n.r. 1 1 6 12t 8 8 n.r. n.r. 7 9 9 6 No. of turbine stages 2 22 2 n.r. — 1 1 1 n.r. 4 1 1 n.r. — — 1 3 n.r. n.r. n.r. n.r. 2 1 1 1 Max. Static Power lb thrust 405 810 1,180 8,000 2.000 1.640 883 353 9,750 1,320 5,050 3,000 n.r. 5,000 4,000 n.r. n.r. 6,500 7,500 9,500 n.r. 365 3.600 5,100 7,000 s.h.p. 1,320 2,640 3.670 — — — — — — 3,650 — — — — — n.r. n.r. — — — — 1,400 — — — Speed r.p.m. 15,000 15,000 8,000 8,600 — 13,400 n.r. n.r. n.r. 11.000 10.000 10,250 n.r. — — n.r. n.r. n.r n.r. n.r. n.r. 14,500 14,700 12,500 8,000 s.f.c. lb lb hr Ib/eshp/h r 0.735 0.735 0.805 0.90 20.0 1.09 1.15 1.17 0.766 0.67 1.15 1.13-1.19 n.r. n.r. n.r. 0.624 0.35 0.90 0.92 0.84 n.r. 0.83 1.05 1.06 0.96 Total power lb thrust or equiva lent s.h.p. 1,475 2,950 4.120 — — — - — — — 4,150 — — 15,000 lb class 55.000 lb-sec 120,000 lb-sec 3,000 3,135 — — — 10.000 lb class 1,540 — — — Representative Cruising Power lb thrust 95 190 270 n.r. n.r. 1,330 330 133 n.r. 300 3.230 2,320 n.r. n.r. n.r. n.r. n.r. n.r. n.r. 70 852 1,707 n.r. s.h.p 740 1,480 2,150 — — — — — — 1,360 — — — n.r, n.r. — — — — 860 — — — Speed r.p.m. 14,500 14,250 7,800 n.r. n.r. 12.500 n.r. n.r. n.r. — 9,000 9,500 n.r. n.r. n.r. n.r. n.r. n.r. n.r. 13.800 14.100 11,800 n.r. Height ft 20,000 20,000 20.000 n.r. n.r. S.L. 25,000 19,680 n.r. 35,000 S.L. S.L. n.r. 30,000 n.r. n.r. n.r. n.r. n.r. 20,000 40,000 30,000 n.r. Speed knots 304 304 260.5 n.r. n.r. Static 304 347.4 n.r. 300 Static Static n.r. 304 n.r. n.r. n.r. n.r. n.r. 260.5 260.5 347.4 n.r. s.f.c. lb lb hr Ibeshp/hr 0.67 0.67 0.715 0.85 n.r. 1.1 1.28 1.40 n.r. 0.495 1.04 1.20 n.r. 0.49 n.r. n.r. n.r. n.r. n.r. 0.66 1.151 1.215 n.r. Power/ Weight- ratio Note(1) 1.89 1.41 1.20 3.14 9.01 4.5 2.86 22 2.77 1.46 2.29 1.84 n.r. 5.41 J 6.663 1.91 0.877 2.67 3.05 3.32 n.r. 1.54 2.8 3.15 2.64 Power per sq ft frontal area Noted) 321 246 260 1,160 558 326 250 1.140 484 321 218 n.r. 2,293 1,835 424 163 666 770 1,020 n.r. 191 360 378 730 Abbreviations: *) Two multi-stage, axial-flow compressors are used in scries, (i) Piston-engine cylinders, e.s.h.p., equivalent shaft horse po-.ver; s.f.c., specific fuel consumption, n.r,, not released for publication. Notes: (1) Power-weight ratio and power per sq ft frontal area is based upon lb thrust for turbojets and rockets and upon e.s.b.p. for atrscrew-drivmg engines. Power is divided by weight. (2) Figures refer to each engine of a double unit. (3) Fuel weight included. REPRESENTATIVE PISTON ENGINES Maker's name and engine type ALVIS: Leonidc. 502 5 Leonidei 524.1 Leonides Major BLACKBURN CIRRUS: Bombardier Major 3 Minor 2 BRISTOL: Centaurus 57 Centaurus 661 Hercules 758 DE HAVILLAND: Gipsy Major 10/2 ... Gipsy Queen 30/2 Gipsy Queen 70/2 ROLLS-ROYCE: Griffon 57 Merlin 35 No. of cylinders and arrange ment 9R 9R 14R 4 I.L. 4 I.L. 4 I.L. 18 R2 18 R2 14 R2 4 I.L. 6 I.L. 6 I.L. 12 V 12 V Cylinder bore and stroke in 4.8x4.41 4.8x4.41 4.8x4.41 4.8x5.5 4.72x5.51 3.94x5.0 5.75x7.0 5.75x7.0 5.75x6.5 4.65x5.5 4.73x5.9 4.73x5.9 6.0x6.60 5.4x6 0 Swept vol. litres 11.78 11.78 18.28 6.524 6.33 3.98 53.60 53.60 38.7 6.124 10.178 10.178 36.70 27.00 Take off h.p. 560 545 870 180 146 92 2,810 2.625 2,040 145 250 380 2,455 1,280 h.p. 570 565 870 180 158 100 2,820 2,705 2,090 145 250 390 1,985 1,800 1,245 Maximum Power r.p.m. 3,000 3,200 3.000 2,600 2,450 2,600 2,700 2,800 2,800 2,550 2.500 3,000 2.750 2,750 3,000 Boost Ib/sq in 8.0 7.0 8.0 — — 11.5 13.5 13.0 — — 7.5 18.0 18.0 9.0 ... Height ft 1,750 4,000 S.L. S.L. S.L. S.L. 500 4,000 3.000 S.L. S.L. 4,750 1,500 9,750 11,500 h.p. 455 410 515 140 135 78 1,745 1,600 1,675 1,575 1.215 125 217 265 1.360 1,285 755 Cruising Power r.p.m. 2,900 2,800 2,600 2,200 2,100 2,200 2,400 2,400 2,400 2,400 2,400 2,300 2,500 2.400 2.400 2,400 2,100 Boost Ib/sq in 3.5 2.0 Zero -2.0 -1.5 -2.0 1.5 2.5 3.5 3.5 3.S 2.0 -2.0 2.0 9.0 9.0 4.0 Height ft 7,250 9,000 11,000 3,250 1,500 3,000 11,000 21.250 11,500 17,500 10,750 3,000 2,900 8,000 6,000 12,500 6,750 Fuel con sumpt. gal/hr 23.0 24.0 35.0 9.25 9.20 5.50 107.5 105.6 101.7 105.6 74.0 8.85/ 9.25 12.5' 13.1 16.8 17.5 124 68 | Weight, lb h.p. 1.37 1.12 1.22 1.94 2.23 2.40 1.00 1.26 1.00 2.20 2.10 1.90 0.851 1.19 R—Radial. R2—Row Radial. I.L.—Inverted in-line. V—60 deg Vee. S.L.—Sea level. In this table, weight is divided by power in the last column.
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