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Aviation History
1974
1974 - 0046.PDF
42 TURBINE ENGINES OF THE WORLD flight hours'*. Deliveries to date probably total about 7,000 engines. Applications and projects Aeritalia G.222 (growth version) (2X4,910 e.h.p. T56-A-15); General Dynamics 580 (2X3,750 e.h.p. Model 501-D13I; Grumman C-2A Greyhound (2X4,050 e.h.p. T56-A-8); Grumman E-2B Hawkeve (2X4,050 e.h.p. T56-A-8): Lockheed C-130B & E Hercules (4X4,050 e.h.p. T56-A-7); Lockheed HC-130H Hercules. (4X4,910 e.h.p T56-A-15); Lockheed P-3C Orion (4X4,910 e.h.p. T56-A-14); Lockheed 100 Hercules (4X4,050 e.h.p. Model 50I-D22); Lock heed 100-20K & -30 Hercules (4X4,080 e.h.p. Model 50I-D22A); Lockheed I88A-Electra (4X3.750 e.h.p. Model 501-D13). 'T56-A-15 F'ourteen-sLag'e compressor, annular combustor, four- stage turbine, separate forward-supported reduction gearing. Take-off 4,910 e.h.p.; pressure ratio 9-25:1; mass How 32-41b/scc: length 14(>in; width 27in; height 39in; weight 1,8251b. Model 501-JY16Z (T7011 Free-turbine two-shaft turboshafl. Largest turboshaft in the West, the Model 501-M62 is being developed under a $32 million, £13-7 million contract for the US Army's HLH (Heavy Lift Helicopter), the thrce-engined Boeing Vertol XCH-62A. Embodying technology from Allison's Model 501/T56 and TF41 engines, this turboshaft is scheduled to be flight-qualified by October this year, ready for the lirsl flight in summer 1975 of the sole prototype XCH-62A so far financed. The aircraft is designed to lilt a maximum payload of 70,0001b, and if performance is satisfactory the helicopter could enter production in 1978. The rotor transmission sys tem is rated at. 17,700 s.h.p. A possible derivative of the Model 501-M62 is a 13,0001b- 15,0001b turbo! an incorporating a Hamilton Standard variable-pitch Q-Fan and integral reduc tion gearing. TfOl-AD-700 Thirteen-sfage compressor, annular combustor, two-stage compressor and power turbines, direct-drive. Take off 8,079 s.h.p.; pressure ratio 12-8:1; mass How 44-3lb/sec; length 74in; width 30-2in; height 36-8in; weight 1,1791b. Model 912 Two-shaft turbofan. Described under its military designation of TF41, this page. T56 Single-shaft turboprop. Described under its commercial designation of Model 501, page 41. T63 Free-turbine two-shaft. Described under its commercial designation of Model 250, page 41. T701 Free-turbine two-shaft turboshaff. Described tinder its commercial designation of Model 501-M62, this page. TF41 (Model 912) Two-shaft turbofan. Jointly developed and manufactured by Allison and Rolls-Royce (1971), the TF41 is derived from the RI3168-25R Spey powering RAF and RN F-4M and F-4K Phantoms. More than 800 TF4is have so far been delivered by the two companies for LTV A-7D ( I x 14,5001b TF41-A-1 I and A-7E I I X 15,0001b TF41-A-2 & -400) Corsair II aircraft for the USAF and USN; a further 200 or more engines are on order. The TF41 has accumulated more than 500,000hr in service, and has achieved a lower niain- tenance-to-llight hours ratio and higher rate of life develop ment than any other strike-aircraft engine in the US. These attainments are likely to prove beneficial during the fly-off this March between the A-7D and the General Electric TF34- powered Fairchild Industries A-10A to decide on the (JSAF's future close-support aircraft. Higher-thrust versions of the TF41 are under consideration for new developments of the Gorsair II; these include the afterburning, thrust-reversing Model 912-B23 with basic and reheat ratings of 15.0001b and 25,0001b; the uprated Model 9I2-B31 of 17,5001b basic rating; the afterburning Model 912-B32 with ratings of 17,1001b and 27,6701b; and the afterburning Model 912-B32B with ratings of 17,1891b and 27,8351b. The latter two engines differ mainly in their use of convergent and convergent/divergent exhaust nozzles respectively, the -1532B version being for propulsion up to Mach 2-4. Both the -B31 and -IJ32 can also be litted with a thrust-vectoring exhaust nozzle for- V/Stol installa tions. Most likely version for development is the Model 912-B31. TF41-A-2 & -400 Three-stage fan plus two-stage i-p com pressor, eleven-stage h-p compressor, cannular combustor, two-stage h-p and l-p turbines. Take-off 15,0001b, bypass ratio 0-74:1; pressure ratio 21-4:1; mass How 2631b/sec; length 114-2in; diameter 39-5in; weight 3,24Ilb for' T41-A-2; 3,I991b for TF41-A-400: DREHER (USA) Dreher Engineering Co. Headquarters: 933 5th Street, Santa Monica, California 90403. Private company engaged in manufacture of aero engines. FLIGHT International, 10 January 1974 The specialist activity of Dreher is to the development ol ultra-small turbojets for powered sailplanes and drones. A series of these engines has been built, including the 551b- thrust T.ID-76C Baby Mamba, the 1201b TJD-79A Baby Python, and the 1101b TJD-81A Baby Boa. The Baby Mamba has flown in a Prue 215A sailplane. TJD-79A Baby Python. Single-stage mixed-flow compressor-, annular' combustor, single-stage axial turbine. Take-off 1201b. pressure ratio 3:1; length 25-Oin; diameter II in; weight 381b FABRIQUE NATIONALE (Belgium) Division Moteurs, Fabrique Nationale Herstal SA. Corporate headquarters: B-4400 Herstal. Tel: 04-64-08.00. Previously known as Fabriquc Nationale d'Armes de Guerre, FN is a public company with a wide variety ol corporate activities comprising fire-arms and cartridge manu facture, aero and non-aero gas-turbine manufacture and over haul, and precision engineering manufacture, including foundry, forge, heat-treatment, and surface-treatment depart ments. Corporate sales in 1972/73 down to BFr3,854 million. £41-5 million, of which Engine Division sales accounted for' approximately 25 per cent. During 1972/73, FN ceased licensed manufacture ol Snecma Atar 9C turbojets lor Belgian Air Force Mirage hghters and of Rolls-Royce I 1971 i Tyne turboprops for" Dassault-Breguet Atlantics. Aero-engine work, which is an increasing activity, currently includes overhaul of and spares manufacture lor- Atars, Microturbo Noelle starters and Boeing 502-I2B ground starters, sub-contract manufac ture of Snecma M53 turbofan components and participation in the Snecma/General Electric CFM56 turbofan develop ment programme. An agreement is also underway for FN to participate in the production of the Turbomeca-Snecma Larzac 04 turbofan—this follows the recent Belgian order for the Larzac powered Dassault-Breguet/'Dormer Alpha Jet. In addition, FN is collaborating with foreign comptmies in the study of non-polluting engines, low-power gas turbines, and other aspects of turbines. FIAT (Italy) Divisione Aviazione, Fiat SpA. Divisional headquarters: Corso Fp.rrueci 122, Casella Osteite 345 Perr., 10100 Torino. Tel: 332 033. Fiat is a public company in motor vehicle, tractor', iron and steel, diesel engine and aero- and non-aero gas-turbine manufacture. Corporate assets L r 1,824,000 million, £1,142 million, and employees 189,600. Corporate sales in 1972 up to Lr'2,127 million, £1,149 million, of which aero-engine sales represented 1-55 per cent The Aero Engine Section (Sezione Motori Avio) forms a major- part of Fiat's Aviation Division following transfer of aircraft activity to Aeritalia. The Division itself is contained within the company's Product Diversification Group. Main aero-engine production activity is the licensed-manufacture of General Electric J79-GE-I9 turbojets lor Aeritalia F-I04S Starhghters and sub-contract, participation in Alia Romeo licence manufacture of General Electric J85-CE-13A turbo jets. The Aviation Division is also collaborating in a number' of development programmes, namely the Government-backed RB.199-34R lurbofan for' the MRCA, via a 20 per cent holding in Turbo-Union Ltd, the Rolls-Royce ( 1971 I Viper- (i()l and 632 programmes, where Fiat and R-R share the work on a 30/70 basis; and the P&W JT10D turbof'an, for- which it is planned that Fiat and Alfa Romeo will form a new joint company with substantial financing by the Italian Govern ment (presumably via Fmmeccanica/IRI). Italian Air' Force orders for the F-J04S were increased last year' to 205, in volving some 300 Fiat J79s to be delivered by next year. The1 Alia Romeo .185 programme consists of 200 engines to be concluded this year. Fiat is also understood to be licensed to manufacture the General Electric T64/P4D turboprop for the Aeritalia G.222. Production of the T64 will also be sub contracted to other' Italian companies. Fiat has additional links with GE via Turbomotori, in which it has a 33'3 per cent holding, and its conversion of the CF6-6/TF39 turbofan to the LM2500 marine turbine. Other engine-related activi ties include sub-contract manufacture of gearboxes and transmission systems. It is anticipated that Fiat corporate results for 197*3 will record a trading loss. FLYGMOTOR (Sweden) Volvo Flygmotor AB. Headquarters: S-461 01 Trollhdttan. Tel: 0520/301-00. Subsidiary of AB Volvo, a public company with corporate activities comprising manufacture of motor vehicles, marine
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