CBA-123 prototype begins GE F120 Prototype engine completes component engine tests 123 have clocked a total running time on the ground of exactly 12 were tested over a period of nine testing hours, of which five hours were Embraer-Empresa Brasileira de months in areas including vibr logged on the port engine and Aeronáutica S.A. recently run for ation, heat, and endurance. seven hours on the starboard one. the first time the two 1,300 SHP GE Aircraft Engines' F120 proto The F120 has been designed to Garrett TPF351-20 engines in The TPF351-20 was airborne type engine has successfully com contain 40 percent fewer parts stalled on the first CBA-123 for the first time on Garrett's pleted component development than GE's current fighter engines, prototype. Boeing 720B flying testbed from testing, a major requirement for the F110 and te F404. XF120 the company's Phoenix, Arizona On that first engine test, the the U.S. Air Fore flight clearance. demonstrator engines have already facility on Monday, June 9th for starboard engine was started four The F120 is GE' propulsion successfully demonstrated an ad three hours. A second flight of five times and run for 50 minutes candidate for the USAF Advanced vanced variable cycle capability hours took place on Thursday whereas the port engine was Tactical Fighter (ATF) program. and two-dimensional exhaust June 12th. O n both occasions the started once and run for two system. F120 prototype engines are sche engines were restarted in the air minutes, for a total running time duled to fly in a Northrop/- The variable cycle technology several times and run at cruise and of 52 minutes for both engines. McDonnell Douglas ATF proto involves manipulating bypass air, full-power settings performing To date, the two TPF351-20 type and in a Lockheed/Boeing/- thereby enabling the F120 to normally according to Garrett. installed on the prototype CBA- General Dynamics ATF prototype operate like a conventional turbojet in 1990. at supersonic speeds, and like a The F120 component testing, more fuel-efficient turbofan at conducted at GE Aircraft Engines' subsonic cruise speeds. Aerospace industry headquarters and at the facilities The F120 program is progressing of GEAE suppliers, involved under the direction of Aeronautical endorses new Matsuura running 41 controls and accessories System s Division, Wright- through 305 tests. The components Patterson Air Force Base, Ohio. machining centre Since January this year, Beaumont half metre square pallet with X, Y Rolls-Royce orders Cray and Z strokes of 750, 600 and Machine Tools Ltd of Coalville, 625mm respectively, combined Leicester has received orders total Research Supercomputer ling £1.5 million from jet engine with a component weight capacity turbine blade manufacturers alone. of 800kg, make it ideally suited More than 40 per cent of this for a great variety of applications." business has come from the recently The Matsuura 700H machining Cray Research, Inc. has announced said John Rollwagen, Cray centre is designed to be accurate introduced Matsuura 700H twin that Rolls-Royce plc, a leading Research chairman and chief and powerful. The 11/15kw pallet horizontal machining centre. international aero engine manu executive officer. Rolls-Royce has Comments Beaumont's manag spindle motor, driving the BT50 facturer, has leased a Cray Research been using a CRAY X-MP for ing director, Jeremy Gough, "The spindle through a 2-step geared supercomputer, the Cray Y- some time, but decided recently to Matsuura machines have obviously drive, provides a machining torque MP4/216 system. The system will obtain its own system, under lease made an impact on this particular of 613Nm, while the positioning be installed in October in Derby, agreement which will allow niche in the areospace industry accuracy of ±0.005mm in the X-, England. expansion as required over the Y- and Z-axes is further enhanced and, in particular, the twin spindle next few days. "We are delighted that Rolls- and pallet change verticals continue by the ±3 sec accuracy of the full Royce, an acknowledged world "We have used Cray computers to make significant inroads. What fourth rotary axis, achieved through leader in advanced technology for the past five years — initially is particularly pleasing, however, a rotary inductosyn feed back products has chosen to invest in a in the research and development is the obvious appeal to our clients system. Cray Research supercomputer," process of engine design, and then of the new 700H machine. The as a day-to-day design tool," said Michael Roberts, Rolls-Royce director of systems and computing. The company will use the new system for engine design processes $1.3m British Aerospace boost for Lucas including computational fluid dynamics, turbulence thermo dynamics, and stress analysis. There are currently 20 Cray British Aerospace, Prestwick, Lucas Aerospace Power Equip Lucas Aerospace has been awarded Research systems installed at 17 Scotland, is for 300amp DC a $1.3m contract to provide ment Corporation in Ohio, in the commercial aerospace sites world starter-generator systems to start starter-generator systems for the US. wide. The company has 12 systems the engines and provide continuous British Aerospace Super 31 com The British Aerospace Super 31 installed worldwide at 11 govern programme is expected to continue power to the aircraft. The system muter aircraft. ment aerospace sites. into the year 2000. is designed and manufactured by The follow-on contract from AIRCRAFT ENGINEERING — August 1990 35
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: Aug 1, 1990
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