Gas turbines

May 21, 2014 - 1:32pm

Pratt & Whitney’s launch on Tuesday of a 35,000-pound-thrust version of its Geared Turbofan extends the family’s power range by another 2,000 pounds, giving Airbus A321neo customers enough range and payload capability to effectively operate from such hot and high locations as Mexico City and Bogota. Dubbed the PW1135G-JM, the engine gets its extra thrust from leftover development margin extracted from the design of the family as a whole, thereby requiring no hardware or design changes, explained Pratt & Whitney vice president of engineering Tom Prete.

May 20, 2014 - 2:05pm

Legendary aircraft designer Ed Swearingen died on Thursday at age 88, on the eve of the resumption of production of his persistent light jet–the SJ30–by current program owner SyberJet. It was 1986 when he unveiled the small, single-pilot jet powered by a new breed of turbofan engine by Williams International that would propel the airplane swiftly and far, with performance that outstripped most business jets of the era.

May 19, 2014 - 6:00am

Most activity in business jet engine research and development is taking place for business aircraft at the top end of the size range. Snecma (Booth 5515) is developing the Silvercrest for the Dassault Falcon 5X, while Pratt & Whitney Canada (Booth 3834) has readied a new variant of the PW307 for the newly revealed Falcon 8X. The Québec-based manufacturer is also running the PW800, a demonstrator in the 10,000- to 20,000-lb-thrust range. GE (Booth 5551) is working on its Passport engine for Bombardier’s Global 7000 and 8000.

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.

 
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