Rolls-Royce last month made the first run of the 16,000-pound-thrust BR725 engine at its facility in Dahlewitz, Germany. The turbofan was selected to power the new Gulfstream G650, which was unveiled in mid-April. Initial flight-test engines will be delivered to Gulfstream later this year, and the G650 is slated to fly in the second half of next year.
Seventeen Gulfstreams with recently overhauled Rolls-Royce Spey or Tay engines were grounded last month when a problem was discovered with the engines’ air control actuator (ACA), a key fuel control component. All the engines were being, or had recently been, overhauled by either Rolls-Royce or BizJet International. According to Gulfstream, three of the aircraft were already in scheduled maintenance at the time.
Ibis Aerospace came to last month’s NBAA Convention with a restyled full-scale cabin mockup of its Ae270 turboprop single. The new interior provides fully adjustable leather seating in a club arrangement and includes two foldout tables, an ultrasuede headliner, a fabric-covered side ledge, adjustable lighting and environmental controls.
With the completion of its first run on October 31, Pratt & Whitney Canada initiated testing of its 2,500-lb-thrust PW625F engine demonstrator. The company plans to develop a family of turbofans for light business jets. P&WC claims the PW625F will provide optimum performance and “significantly reduced ownership costs.” The engine is aimed at the market now dominated by the Williams FJ44 series.
Seventeen Gulfstreams with recently overhauled Rolls-Royce Spey or Tay engines were grounded last Friday when a problem was discovered with the engine’s air control actuator (ACA), a key fuel control component. According to Gulfstream director of customer support Mitch Choquette, three of the aircraft were already in scheduled maintenance at the time.
“We’ve had some very positive response from the marketplace,” a Honeywell spokesman said, but the company and partner Garrett Aviation Services have failed to obtain the minimum number of orders needed to launch a Hawker 700 engine upgrade program. Last spring the companies announced a program to install a new high-pressure-ratio fan and a new TFE731-5 hot section, creating a TFE731-4.
Just one year ago there were none. Now, four companies have suddenly announced their intention to develop an RVSM STC package for the Learjet 20 series to be available next year. All four companies propose to achieve the approval using the airplane’s original JET autopilot and estimate the price to be around $150,000.
Two NASA-industry partnerships could produce tangible benefits for aircraft operators in the near term. The turbofan engine research is being conducted by NASA Glenn Research Center in Cleveland as part of its aerospace propulsion and power program, the same division that Williams International teamed up with to develop the 700-lb-thrust FJX2 turbofan.
Italy’s Vulcanair expects to begin flying its single-turboprop VF600W by the end of this month, according to Remo De Feo, president of the company’s Manassas, Va.-based distributor. The fuselage of the nine-seat, 8,600-lb-mtow airplane was derived from the Vulcanair SF600A Canguro and its high wing from the Vulcanair 600 Viator. The airplane is powered by a Walter M601F-11 turboprop engine.
T-G Aviation, based at Hamilton Airport in Mount Hope, Ontario, Canada, signed an agreement with Pratt & Whitney Canada to provide category I maintenance, including hot-section inspections, for three P&WC engine series–the JT15D, PT6/6T and PW500. The service is a natural extension of the T-G Aviation Super Cheyenne conversion package for the Piper Cheyenne I and II, which specifies PT6A-135A turbine engines.