The European Aviation Safety Agency (EASA) yesterday withdrew requirements for repetitive Rolls-Royce Trent 900 inspections it mandated following the uncontained failure of a Qantas Airbus A380 engine last November. The relevant airworthiness directive (AD 2010-0242R1), which applies to all examples of seven engine variants, follows “further assessment of manufacturing data and additional stress analysis.”
Chromalloy is offering a new thermal barrier coating it claims enhances the performance of gas turbine engines. "The RT-35 Low K coating provides lower thermal conductivity, which allows higher engine temperatures. Engines produce greater thrust when operating at higher temperatures and they can operate on the same amount of fuel as powerplants that operate at lower temperatures," said Dr.
A new 150,000-sq-ft investment casting facility has been opened in Tampa, Fla., by Chromalloy Castings. According to Tom Trotter, v-p and general manager, it is the only facility in the world that can investment cast aerospace gas turbine blades from the smallest up to and including large, heavy industrial gas turbine blades and vanes other than those made under contract for the OEMs.
Sales transactions of pre-owned business jets and turboprops, as well as turbine helicopters, posted healthy increases from a year ago, according to data released yesterday by business aviation information firm JetNet. From January through October 31, business jet sales transactions climbed by 16 percent, followed by turbine helicopters (up 15.2 percent) and turboprops (up 4.5 percent).
Business jet engine programs this year seem to be moving slowly, with little progress to report. Some–like the Snecma Silvercrest–have not been officially launched yet and are still looking for an application. Most news comes from derivative engine programs at Honeywell, Pratt & Whitney Canada and Williams International.
A new General Electric turboprop engine, derived from the 7,500-shp GE38-1B turboshaft engine, could become available by the middle of the decade. GE has designated the new engine study CPX38, and is basing it on the turboshaft that will power the U.S. Marine Corps’ new heavy-lift helicopter, the Sikorsky CH-53K. This could mean that the CPX38 would be in the 5,000- to 6,000-shp range.
The U.S. Air Force has selected Belac to provide turbine blades for the high-pressure turbine (HPT) first stage in F108 (CFM56-3) engines that power KC-135 tankers. The FAA-approved blades are manufactured by Oldsmar, Fla.-based Belac under FAA parts manufacturer approval (PMA) regulations. “This is the first agreement of its kind for Belac and the U.S.
Among turbofan manufacturers, Williams International remains tops with AIN readers for the support it provides to operators. Rolls-Royce, combined into one listing this year for the first time instead of being separated into R-R and R-R Deutschland, takes second place and, by barely a gnat’s whisker, bumps Pratt & Whitney Canada to third place.
Pratt & Whitney Canada has launched an all-new turboprop engine for regional aircraft to replace the 1,800- to 5,000-shp PW100 series. It expects to run the core demonstrator in the second half of next year.
The air transport industry was caught off guard in April when huge plumes of ash from Iceland’s Eyjafjallajökull volcano effectively shut down flying in Europe for a week, stranding thousands of passengers and draining at least $1 billion from air carriers.