Physics

July 24, 2007 - 11:07am

The FAA is accepting comments until August 16 on a proposed Airworthiness Directive that would affect as many as 3,572 TFE731-2 and -3 turbofans on U.S.-registered aircraft. If the measure is enacted, the engines’ low-pressure turbine stage 1 disks would have to be repetitively checked for fatigue cracks. An estimated 1,900 of those engines would require disk replacement under the proposed AD.

July 24, 2007 - 11:03am

BizJet International of Tulsa, Okla., has announced the operation of its new plasma spray machine. “The new plasma spray system lets us restore engine components damaged by corrosion and worn by normal engine operation,” said Robert Peters, vice president of engine maintenance. The company is using the new process on Pratt & Whitney Canada, Rolls-Royce, Honeywell and General Electric engine parts.

July 3, 2007 - 11:12am

UK-based Rolls-Royce has purchased the rights to a new coating process for turbine blades that could improve performance and durability. Created by researchers at Iowa State University, the coating, based on a composition of platinum, nickel, aluminum and hafnium, improves the durability and reliability of ceramic heat barriers that are applied over the bond coat, said co-creator Daniel Sordelet, a scientist with the U.S.

July 3, 2007 - 5:24am

The House of Representatives passed legislation that aims to punish anyone convicted of knowingly pointing a laser at an aircraft with a maximum of five years in prison. Introduced by Rep. Ric Keller (R-Fla.), the bill stems from a number of cases over the past few years where pilots have reported lasers being shone in the cockpit, causing temporary loss of vision. To date, no accidents have resulted from laser pointing.

June 20, 2007 - 10:12am

Good news for any aerospace exhibitor who ever complained about the infrastructure or utility services available at the Farnborough Air Show: organizer Farnborough International (Hall 2B, Stand 14B) is spending almost $2 million to improve existing and create new facilities at the site, about an hour’s drive southwest of London. There also may be improved arrangements for business aircraft.

June 19, 2007 - 10:20pm
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U.S. equipment manufacturer Parker Aerospace (Hall 5 E21) is here at Le Bourget promoting its “core” flight-control, hydraulics, fuel and engine systems products in a “streamlined” exhibition stand. Parker is showing fuel-tank inerting systems, for which it has been working with original equipment manufacturers (OEMs) for the past four or five years, said technology and innovation group vice president Mark Czaja.

June 19, 2007 - 11:30am

U.S. engine maker Pratt & Whitney (PW) is here touting its solutions to reduce carbon dioxide (CO2) emissions, including more fuel-efficient technologies and better engine maintenance. During a press conference here at the Paris Air Show on Tuesday, president Steve Finger highlighted existing PW engines features and pledged geared turbofan flight-testing very soon.

June 16, 2007 - 1:15am

Texas-based ComTran on June 1 received EASA certification for its noise-cutting “advanced jet nozzle” on MD-80 airliners. When so equipped, MD-80s will meet EASA Chapter 4 noise requirements. According to ComTran, the additional equipment brings neither weight penalty nor fuel burn increase. The company also claims it does not change engine operation. It is said to even cut maintenance costs.

May 23, 2007 - 6:21am

The ultra-light Akoya, an original amphibian twin-seater, is to make its first flight by this summer. The Akoya can takeoff from land, water or even snow thanks to innovative features, Lisa Airplanes CEO Erick Herzberger explained to EBACE Convention News. Simultaneously, the Chambery, France-based company is working on a fuel-cell powered aircraft, the Hy-Bird.

April 30, 2007 - 6:19am

Stage III Technologies, which received an STC two years ago this month for its hush kit for Gulfstream IIs and IIIs, plans to have its long-awaited first installation under way in August at Western Jet in Van Nuys, Calif. The kit, which pairs a mixer nozzle with an ejector shroud, yields a 50-percent reduction in noise, according to the company. A thrust reverser that the company says is good for 10,000 cycles is also included.

 
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