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Aviation History
1975
1975 - 0049.PDF
FLIGHT International, 2 January 1975 Directory 31 system capable of increasing power by ten per cent, for use in high ambient temperatures. Early in 1974 the uprated 1,970 s.h.p. PT6T-6/T402 was military-qualified following an extensive test programme, and deliveries of the T402 have since started; the engine provides such applications as the Bell AH-1J and UH-1X with improved payload and performance. Existing orders for the T400 include powerplants for 202 Bell AH-Us for Iran for delivery through to 1977, and 69 AH-Us for the USMC for delivery up to next month. Applications and projects. Agusta Bell AB 212 (1 X 1,800 s.h.p. PT6T-3); Bell 212 Twin (1 x 1,800 s.h.p. PT6T-3); Bell UH-1N (1 X 1,800 s.h.p. T400-CP-400); Bell AH-1J (1 X 1,800 s.h.p. T400-CP-400 or 1 X 1,970 s.h.p. T402-CP-402); Sikorsky H-34 (1 X 1,800 s.h.p. PT6T-3); Sikorsky S-58T (1 X l,80o" s.h.p. PT6T-3orl X l,970s.h.p. PT6T-6); Sikorsky S-69 XH-59A (1 x 1,800 s.h.p. PT6T-3). engine has been selected to power the US Navy General Dyn amics YBGM-109 strategic cruise missile, competing with the Teledyne CAE F106-powered LTV YBGM-110. Both engines are suitable for installation in either missile. The F107 has also been chosen for the USAF's Air-Launched Cruise Missile (ALCM) which Boeing is negotiating to design, build and test; first flight of the ALCM is planned for next year. The WR19 has also been experimentally installed in the Kaman Saver (Stowable Aircrew Vehicle Rotoseat) and, as the 7001b WR19-9, powers the Williams Research experimental Stamp (Small Tactical Aerial Mobility Platform) vehicle, which was test flown in 1973. The WR19 is capable of uprating to 1,1001b thrust for this latter installation. WR10 Two-stage fan and two-stage i-p compressor, single- stage h-p compressor, annular combustor, single-stage h-p turbine, two-stage 1-p turbine. Take-off thrust 4301b; bypass ratio 1:1; pressure ratio 12 :1; mass flow approximately 4-41b/sec; length 24in; diameter 12in; weight 671b. UNITED AIRCRAFT OF WEST VIRGINIA (USA) United Aircraft of West Virginia Incorporated. Headquarters: Benedum Airport, Bridgeport, West Virginia. Tel: (304) 842 5421. Subsidiary of United Aircraft of Canada Ltd engaged in aircraft gas turbine assembly and test. This company assembles and tests T400-CP-400 turboshafts for installation in military helicopters ordered by the US armed forces. The engine parts have normally been supplied by UACL. WILLIAMS RESEARCH (USA) Williams Research Corporation. Headquarters: 2280 West Maple Road, Walled Lake, Michigan 48088. Tel: (313) 6245200. Private company engaged in aero- and non-aero gas-turbine manufacture. Corporate sales in the multi-million-dollar bracket. This company has specialised in the development of ultra- small gas-turbines for aero, automotive, industrial and marine duties. In addition to propulsion turbines, the company manu factures APUs. A total of about 2,000 engines have been built to date. F107 (WR19) Two-shaft turbofan. Originated by Williams Research for the Bell Aerosystems Flying Belt, this turbofan in its uprated WR19-2 version was one of two engines competing to power the USAF's AGM-86 Scad (Subsonic Cruise Armed Decoy) which was cancelled in 1973. As the 6251b F107-WR-100, this The bar charts on this and the next page convey the following information: (1) the range of engines surveyed, i.e. turbofan, turbojet, turboprop or turboshaft; (2) the civil (C) or military (M) origin of a design; (3) the status of an engine programme (project, development and production; in one case, that of the RB.211, the diagonal line indicates a project of lower power than the original engine); (4) the basic take-off rating of an engine series, with the afterburning thrust, where applicable, denoted by a thick vertical line; and (5) the range of engines on the market in a given performance bracket. The relative timescales of pro grammes are indicated by the amount of ' 'white'' showing on the bars, so it is possible to see at a glance how well a particular bracket is stocked with current or next-generation engines. •..-.. Project or design study Demonstrator or development Production and/or service TURBOFANS Fig1 0-2,5001b, 0-11kN ^^^wM^mmmK., Au bisque g .. z •?. y-\:r* J400 (WR24) Single-shaft turbojet. Currently Williams Re search's main aero product, the WR24 series is derived from the earlier WR2-6 turbojet. Flight testing of the WR24-17- powered Northrop VSTT (Variable Speed Training Target) by the US Army was completed in autumn 1974. This unit is competing with the Teledyne CAE Model 372-2-powered Beech VSTT in a fly-before-buy contest for a cheap, reliable and versatile target vehicle. Applications and projects. Development Sciences Shark (1 x 1701b WR24-7 or 1 x 2001b WR 24-17); Northrop MQM-74C Chukar (1 x 1211b WR24-6/YJ400-WR-400); Northrop MQM- 74C Chukar 2 (1 x 1701b WR24-7/J400-WR-401); Northrop VSTT (Variable Speed Training Target) (1 X 2001b WR24-17). WR24-6 Single-stage centrifugal compressor, annular com bustor, single-stage turbine. Take-off 1211b; pressure ratio 4-2:1 ; mass flow 2'21b/sec; length 19in; diameter llin; weight 301b. Stagg Single-shaft gas-generator. Williams Research is one of four contractors participating in the US Army's Stagg (Small Tur bine Advanced Gas Generator) programme. Mass flow is less than lOlb/sec. WR2 Single-shaft turbojet. First quantity-produced Williams Research engine, the 1201b-thrust WR2-6 powers, the Canadair CL-89 AN/USD-501 reconnaissance drone. WR2-6 Single-stage compressor, annular combustor, single- stage turbine. Take-off 1251b; pressure ratio 4:1; mass flow 2-21b/sec; length 22-8in; diameter 10-8in; weight 301b. Fig 2 2,5001b -5,0001b, 11kN-22kN A^isr • ; ;:i:/Ac ••'.••I-•'*• *•'--•>•,' 1 zZxZZZ CF700&TK1? gJZgo I ' :< 3C& M '""••ATFI J II ZZZZ 0 1,000 2,000 3,000 4,000 5,000 Fig3 5,0001b-10,0001b, 22kM-445kN ;iV145M(RB.407) IE IM ^J'»:f'^^^^^^^S^^^l J1*M eEm : zzz- : _L 0 2,000 4,000 Fig4 10,0001b-20,0001b, 44-5kN-89kN 8,000 10,000 mmWMMJMMmMMi M45SDIRB410D) M45T (RB.424) M45SF IRB.415I WZ<W<<W<fAM ML Spev (RB.163& RB.16 M45SE (RB.427I iliiM" •; -1— M45S (HB.410) ;~':x;i ,ws T.. zz zz zz. .— zz rz, L_" : ; ::; zz :„ zc 3§c ~|M WTT 5,000 10.000 .fej 20,000
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