The FAA proposes to adopt a new airworthiness directive (AD) for certain Honeywell TPE331-5, -5A, -5AB, -5B, -10, -10R, -10U, -10UF, -10UG, -10UGR, and -10UR turboprop engines. It was prompted by engine propeller shaft coupling failures, leading to unexpected propeller pitch changes and resulting in high aerodynamic and asymmetric drag on the airplanes using these engines. This proposed AD would require removing from service certain part number propeller shaft couplings.
The Turbomeca Arrius 2R turboshaft made its first ground run on April 29 at the company’s test facility in Bordes, France. The derivative engine, which is in the 500-shp class, will power the in-development Bell 505 Jet Ranger X light single. The Arrius 2R features Fadec and a 3,000-hour time between overhaul. Certification is expected late next year.
The Textron AirLand joint venture said its Scorpion light strike and intelligence, surveillance and reconnaissance (ISR) jet has completed 50 hours of flight-tests since it first flew on December 12 last year. The prototype has flown to 30,000 feet and at 120 to 310 knots calibrated airspeed, with a maximum airspeed tested of 430 KTAS.
Scientists in the propulsion system laboratory (PSL) at NASA’s Glenn research center in Cleveland, Ohio, have developed a test facility that can recreate high-altitude engine icing, a long-awaited capability that should equip the aviation industry to tackle a poorly understood hazard.
The diesel engine research and development project that Airbus Helicopters (formerly Eurocopter) is conducting with racing car engine specialist Teos Powertrain Engineering and engine manufacturer Austro Engine, under Europe’s Clean Sky joint technology initiative, has cleared significant milestones. The demonstration engine is now being tested on an iron bird, before the first flight planned for this year on a modified EC120.
Regional airliner rivals ATR and Bombardier may still be no closer to announcing their long-anticipated new 90-seat twin turboprops, but Pratt & Whitney Canada (P&WC) is determined to be ready with the necessary powerplant for program launches that it views as inevitable. Next month, the engine maker will resume testing of the compressor unit for its proposed New Generation Regional Turboprop engine and it expects to have all testing complete by mid-year.
Conklin & de Decker released the 2014 version of its Life Cycle Cost aircraft budgeting and financial analysis tool, which includes ownership and operating cost data for more than 400 business jets, turboprops, helicopters and piston aircraft. Specifically, it shows aircraft acquisition costs, operating costs, taxes and final residual values. According to Conklin, database prices are $795 for jets, $625 for turboprops or helicopters and $475 for pistons. A single-aircraft version is also available for $250 per aircraft.
Photos have appeared on Chinese websites of an Ilyushin Il-76 testbed fitted with a large high-bypass ratio turbofan under the port inner pylon.
EADS has set itself an ambitious target for its E-Thrust hybrid propulsion concept, a joint effort with British engine maker Rolls-Royce that went relatively unnoticed when it was revealed at the Paris Air Show in June. The E-Airbus, under its new moniker, is to enter into service in 2030 as a 100-seat regional aircraft.