French engine manufacturer Snecma has been selected as the sole powerplant supplier for the new Dassault Falcon 5X, which was unveiled earlier this week here in Las Vegas. The new Silvercrest turbofan, rated at 11,450 pounds of thrust at takeoff and with a thrust-to-weight ratio of five, is expected to be certified in 2015. It will be the culmination of a 10-year effort, as Snecma began considering designing its first business jet engine in 2005.
If you already fly or maintain some regional airliners and larger business jets, including the Bombardier CRJ200 and Global Express; Gulfstream IV and V/550; Dassault Falcon 2000EX and 7X; Embraer ERJ 145, 170 and 190; IAI Westwinds and Beechcraft King Air turboprops, you may already be familiar with an innovative, on-wing engine-cleansing system called EcoPower Wash.
Rolls-Royce is preparing technologies for the next generation of business jet turbofans and the design engineers’ motto seems to be “smaller, faster, leaner.” Karsten Mühlenfeld, Rolls-Royce executive v-p of engineering and technology for civil small and medium engines, provided AIN with details on future designs that will feature swifter development cycles, near-perfect reliability and reduced acquisition costs.
Engine manufacturer CFM International reports that the Leap series of turbofans under development for the new Airbus A320neo, Boeing 737 Max and Comac C919 narrowbodies is performing as planned since full engine testing began last month. “I’m proud and really happy to tell you that the engine is running smoothly,” Chaker Chahrour, CFM executive vice president, told reporters in a teleconference on October 16. “This engine wants to run.”
A day after watching Pratt & Whitney’s PW1500G engines lifting Bombardier’s new CSeries airliner for its long-awaited first flight on September 16, Pratt & Whitney Canada president John Saabas told AIN that the new turbofan’s PurePower technology PW800 cousin will soon be delivering the same step change in operating efficiency and low noise to the business aviation sector.
Williams leads turbofans, Honeywell tops t-props
The failure of some Stage-2 high-pressure turbine (HPT) nozzles triggered the uncommanded shutdown of an Engine Alliance GP7200 turbofan on an Emirates Airline A380 in November last year, according to the findings of an investigation by the Australian Transport Safety Bureau (ATSB).
United Technologies and Rolls-Royce have agreed to drop plans to collaborate on a new family of engines for the 120- to 230-seat narrowbody market, “following further discussion and because of the current regulatory environment,” said UTC engine subsidiary Pratt & Whitney in a statement released Thursday.
Cessna Aircraft and Bell Helicopter both contributed to the design and development of parent company Textron’s new Scorpion military jet, which was unveiled yesterday. According to a Textron spokesman, Bell brought composite expertise to the project, while Cessna designed and built the jet at its Pawnee facility in Wichita. A nearly completed prototype, which has been fitted with a pair of Honeywell TFE731 turbofans, is expected to fly by year-end.
Snecma plans soon to start another phase of open-rotor engine testing using a one-fifth scale model, in a research and technology effort that epitomizes how laborious developing a new commercial engine concept can be. The concept, based on contra-rotating high-speed propellers, may not find itself in service before 2025. Nevertheless, trials aimed at cutting noise while retaining the huge efficiency advantage of the open rotor’s architecture are well under way.