The comment period on the FAA’s proposed changes to Part 23 certification regulations governing very light jets (VLJs) has closed, and commenters on the proposal submitted approximately 30 opinions about the notice of proposed rulemaking (NPRM).
GE Aviation, which bought Walter Engines last year, has selected Premier Turbines as a designated repair center in North and South America for the M601 and upcoming H80 turboprop engines. The M601 will continue to be overhauled at GE Aviation Czech’s facility in Prague.
While focused on delivering geared turbofan (GTF) engines for the new Mitsubishi MRJ and Bombardier C Series, Pratt & Whitney is turning its attention to the wider applications of a technology that offers a 12- to 15-percent improvement in fuel burn by allowing the engine fan and low-pressure turbine to operate at optimum speeds.
Recessions come and go, but the quest to develop ever more efficient engines for the next generation of single-aisle aircraft continues. Given the time it takes to develop new powerplant technologies, which can be measured in decades, engine manufacturers have to be more confident than most of eventual recovery in the airline industry if the millions spent on research and development are not to be wasted.
CD Aviation Services (CDAS) of Joplin, Mo., has positioned itself to support a niche market: the TPE331. The engine was initially developed in 1961 by Garrett AiResearch in both a turboshaft version–the TSE331–and the TPE331 turboprop.
Embraer has selected the Rolls-Royce AE 3007A2 engine to power the Brazilian manufacturer’s new Legacy 650, it was announced here yesterday.
Certification of the 9,200-pound thrust turbofan is expected in late 2010, in time to enter service with the first aircraft before the end of the year.
High-Speed AirCraft (Hisac), a European research program studying the feasibility of a supersonic business jet (SSBJ), is coming to a close at the end of this year. The research has shown better understanding of the performance such a vehicle could achieve, but it came to no conclusion about the types of engines that would be needed.
The design of new airframes always depends heavily on availability of new engine types. The very light jet segment, for example, had to wait until engine manufacturers Pratt & Whitney Canada and Williams International designed smaller engines to power a new class of light jet, and the same is true on the upper end of the market, with new large jets spurring development of ever more powerful and efficient turbofans.
For reasons that are not clear, every engine manufacturer scored fewer points in this year’s survey than in last year’s, something that did not happen with the airframers and avionics makers.
Brazil-based GP Aerospace is trying to raise $10 million to build a flying prototype of the company’s GP210 very light jet. The GP210 is a light twin-turbine VLJ powered by two 740-pound-thrust Price Induction DGen390 turbofans, which are currently under development. Performance targets for the four-seat twin are 4,300 pounds mtow, maximum altitude 25,000 feet and high-speed cruise of 276 knots.