Fluid dynamics

July 14, 2008 - 3:24am

A major research program launched three years ago by the European Union has identified open rotors and natural laminar flow as key technologies to be taken forward in the Clean Sky joint technology initiative and potentially into the mooted replacement for the Airbus A320.

July 3, 2008 - 5:01am

Pratt & Whitney passes one of the most important milestones in its long history as the much-heralded Geared Turbofan engine takes to the skies this month. Installed and nearly ready to fly aboard the company’s Boeing 747 testbed in the days leading to the start of this week’s Farnborough airshow, the GTF demonstrator underwent 250 hours of ground testing since engineers first ran the engine in November 2007.

June 30, 2008 - 7:43am

Honeywell and Pratt & Whitney Canada have agreed to start doing component repairs on some models of each other’s engines. The details of the agreement are still to be formalized, but it is expected that it will cover Honeywell’s TPE331 turboprops and TFE731 turbofans, as well as its 36-100 and 36-150 auxiliary power units. It will also apply to P&WC’s PW100 and PT6 turboprops and its JT15D turbofan.

June 30, 2008 - 7:29am

Parker Aerospace’s Nichols Airborne Division is here at NBAA to provide information about its bleed air valve new spare and factory-overhaul exchange program, along with its factory overhaul program on the Airborne brand of fuel pumps.

May 29, 2008 - 10:29am

BEECH 1900D, ROCHESTER, N.Y., JUNE 3, 2000–The Safety Board determined probable cause for a gear-up landing by a CommutAir Beech 1900D during a regularly scheduled flight. According to the NTSB, “The reversal of landing gear hydraulic lines by company maintenance personnel [caused the failure].

May 27, 2008 - 10:41am

Price Induction, a startup company based in Anglet, France, is studying a 560-lb-thrust high-bypass-ratio turbofan that would establish a new thrust class. Applications of the DGEN380 would be four-seaters, allowing pilots to upgrade from piston singles to twinjets. Another market could be airline-pilot training.

May 22, 2008 - 12:05am

Spectrum Aeronautical (Booth No. 1947) has quantified the CO2 that will be generated by its Freedom S-40 and Independence S-33 business jets and compared those to competing jets to see how the Spectrum jets stack up emissions-wise. On a 600-nm flight, the midsize S-40 generates slightly less than 1,500 kilograms of CO2, according to Spectrum, while comparable jets should generate more than 2,000 kilograms to nearly 4,000 kilograms.

May 21, 2008 - 9:17am

French engine manufacturer Snecma is developing a new high-pressure core for regional jet applications, dubbed DEM 21 for “21st century demonstrator,” in the 12,000- to 17,000-lb-thrust range. The program may provide the basis for variants capable of powering regional airplanes of up to 70 seats.

May 21, 2008 - 2:42am

Pratt & Whitney Canada (Booth No. 463) now has two major new business aircraft powerplant programs underway, with Bombardier having just selected it to provide the PW308B turbofan for its new Learjet 85 model. Meanwhile, detailed design work has begun for the PW810 engine that will drive Cessna’s new Citation Columbus large cabin aircraft.

May 17, 2008 - 11:12pm

What presented the impetus for the PW810’s development?
When we started to talk about the PW800 family [in the late 1990s], we were talking about an engine for the next generation of regional aircraft.

 
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