Gas turbines

May 14, 2014 - 11:10am

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.

May 13, 2014 - 3:00pm

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.

April 15, 2014 - 9:07am
Textron AirLand Scorpion jet

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.

April 5, 2014 - 3:55am

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.

February 23, 2014 - 9:30am

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.

February 12, 2014 - 12:55am
Almost 30 years on since Pratt & Whitney Canada’s PW100 engine entered service, the manufacturer has continued to invest in boosting the performance of the turboprop family with improvements such as reduced maintenance requirements.

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.

January 23, 2014 - 2:15pm

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.

January 10, 2014 - 3:20pm
The first flight test example of the WS-20 turbofan is seen on the port inboard pylon of an Il-76 testbed. (via Chinese Internet)

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.

November 16, 2013 - 3:30am
The E-Airbus will have six electric fans and one gas power unit that will act as both a turbofan and a generator.

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.

November 16, 2013 - 1:00am
Pratt & Whitney Canada is continuing with early development work for its planned New Generation Regional Turboprop.

Consensus is building among manufacturers and operators alike for a new 90-seat regional turboprop airliner, according to Pratt & Whitney Canada (P&WC), which is eager to press ahead with its plans for a New Generation Regional Turboprop (NGRT) engine.

 
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