Jet engines

February 5, 2008 - 9:41am

France-based engine manufacturer Snecma has reported “positive results” for the first 35 ground test hours of its Silvercrest core engine. In an unusual move, the company has begun the test program without announcing a launch application for the new turbofan, which is targeted for applications on future super-midsize to large business jets. The core engine achieved “all the expected performance objectives” for these combustion trials.

February 5, 2008 - 9:41am

France-based engine manufacturer Snecma has reported “positive results” for the first 35 ground test hours of its Silvercrest core engine. In an unusual move, the company has begun the test program without announcing a launch application for the new turbofan, which is targeted for applications on future super-midsize to large business jets. The core engine achieved “all the expected performance objectives” for these combustion trials.

January 2, 2008 - 9:43am

Boeing 747-132, over Lake Michigan, Oct. 20, 2004–The Safety Board attributed the separation of the cargo 747’s number-one engine from its mounts to the uncontained separation of a portion of the second-stage turbine disk rim after the second-stage turbine vanes contacted the disk, due to the operator’s inadequate inspection of the high-pressure turbine module and the improper repair of the module.

December 18, 2007 - 6:57am

The story of how a 100-year-old prestige motor car company evolved into one of the world’s premier aircraft engine manufacturers is rooted in the weaving together of two fundamental principles–adaptability and commonality.

October 23, 2007 - 11:23am

Beginning next month, engine manufacturers seeking FAA type certification for new turbine designs with inlet areas greater than 2.5 square meters (roughly 27 sq ft) will have to pass more stringent bird-ingestion tests. The amended rule–already accepted by the EASA–formalizes standards that the industry has already largely adopted, according to Marc Bouthillier of the FAA’s engine and propeller directorate.

October 16, 2007 - 10:43am

Pratt & Whitney Canada and the French-Russian Snecma-NPO Saturn joint venture are knocking at the door of the market for regional-jet turbofan engines. The geared-fan PW800 and the more conventional SM146 are not yet fully launched programs, but development is well under way.

October 16, 2007 - 6:49am

Emergency AD 2003-08-52 was issued last month for the GE CT7-9B turboprop in response to 12 compressor-stall events in Saab 340Bs over a six-month period. The stalls occurred when pilots throttled back from takeoff power to climb power. Nine of the events involved engines that had the compressor variable geometry (VG) rigged to N1, one of two allowable rigging options that affords slightly higher performance at the expense of stall margin.

October 11, 2007 - 6:51am

For aviation, the spirit of the 1950s could be said to have begun with Chuck Yeager’s breaking of the “sound barrier” in Glamorous Glennis, a rocket-powered Bell X-1, on Oct. 14, 1947. The World War that had dominated the first half of the 1940s was receding in memory, and mankind’s focus on ascending from the rubble was illustrated clearly by the advances in aviation.

October 8, 2007 - 6:39am

Honeywell will announce a new APU at the NBAA Convention this month aimed at turboprops, light jets and small helicopters. The company said the RE-50 is the first oilless and gearless APU with an integrated generator on the same shaft, and at 50 pounds it is about one-third the weight of Honeywell’s RE-150.

September 27, 2007 - 6:40am

Bombardier Learjet 25, St. Augustine, Fla., July 21, 2007–An SK Logistics Learjet 25 was substantially damaged by a hard landing after a dual engine flameout on approach to St. Augustine Airport. As the first officer reduced power on approach, both engines quit. The captain tried unsuccessfully to restart the engines and landed the jet. The 4,620-hour ATP pilot and the 2,453-hour commercial first officer were not injured.

 
X