Aerodynamics

June 17, 2009 - 9:41am

GE Aviation and NASA are to ground test five sets of new subscale blades for open-rotor engines at NASA’s Glenn Research Center in Cleveland, Ohio. The tests will focus on acoustics and efficiency of a two-stage counter-rotating fan. The two partners have high expectations that new analysis tools will add to their understanding of the fan’s aerodynamics.

May 26, 2009 - 1:32pm

Dassault received EASA certification for its Falcon 2000LX on April 23, followed by FAA certification seven days later. Initially slated for certification more than one year ago, the 2000LX is a winglet-equipped version of the 2000EX. According to the French manufacturer, the winglets cut drag by 5 percent and boost range at Mach 0.80 to 4,000 nm from 3,800 nm. The first customer 2000LX was delivered early last month.

May 21, 2009 - 11:17am

French startup company Price Induction is studying an engine with a two-stage contra-rotating fan as a way to reduce fuel burn on very light jets. The Taor 380-1 would have a thrust of 720 pounds and cut fuel burn by 20 percent, compared with the company’s DGen 380 conventional turbofan engine. The latter claims a specific fuel consumption of 0.715. The Taor 380-1 would be suited to 4,400-pound-mtow aircraft, enabling speeds of 250 knots.

May 12, 2009 - 2:13am

Aerion is proceeding with research in the development of its supersonic business jet while it continues discussions with potential manufacturing partners that would lead to a joint Aerion-OEM design study. Aerion’s hope is that this design study, essentially the nine- to 12-month proof-of-concept phase of the program, would result in a decision by the partners to proceed with full-scale development and production of the Aerion SSBJ.

May 11, 2009 - 6:04am

Aerion of Reno, Nev., today said it is proceeding with research in the development of its supersonic business jet while it continues discussions with potential manufacturing partners that would lead to a joint Aerion-OEM design study.

April 30, 2009 - 12:01pm

Reductions in supersonic boom intensity could allow for overland operation of future supersonic civil aircraft, according to a panel of supersonic technology experts at a meeting held on March 1 in Palm Springs, Calif. The session was part of the UC Davis Aviation Noise & Air Quality Symposium.

April 21, 2009 - 10:30am

Boeing has completed major assembly of the first set of wings for the 747-8 Freighter, the company announced today. The 135-foot, 3-inch wings–thicker and wider than those they replace on the 747-400–incorporate new aerodynamics and allowances for different pressure distribution and bending moments.

March 18, 2009 - 11:25am

Embraer is paying for a service bulletin to replace flap-controller units in the first 10 to 20 Phenom 100 very light jets. The new controller units will have updated software to fix a “nuisance failure” problem that causes the flaps not to work. “The failure does not actually exist,” explained Embraer’s Mauricio Martins de Almeida Filho, “but the system interprets it as a ‘flap fail’ condition and triggers a fail-safe shutdown.

March 9, 2009 - 9:21am

The first revenue flight of an American Airlines Boeing 767-300ER equipped with Aviation Partners Boeing Blended Winglets left Dallas/Fort Worth International Airport Sunday night at 8:35 p.m. with 204 passengers on board and arrived ahead of schedule at London Heathrow Airport this morning at 10:26 a.m. local time.

February 27, 2009 - 10:32am

Hughes 369A, Moulton, Ala., May 13, 2007–The NTSB blamed the crash of the 369 on the separation of its main rotor blade from its tension torsion bar, but
the Board could not determine a reason for the separation. The pilot had recently bought the helicopter and an annual inspection was done just before the sale.
A main rotor blade was replaced and

 
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