Some interesting points in the article.
GLASGOW, Mont. -- At a remote airfield in northeastern Montana, where the quiet is usually broken only by the singing of Western meadowlarks, a Boeing 777-300ER jetliner made some symbolic noise of its own Wednesday.
But it was the lack of noise from the big plane that will help advance aviation.
Technology being tested on this Boeing 777 in Montana is expected to find its way into 787s, due to enter service in 2008, and the 747 Advanced.
The Boeing Co. and some of its partners, including NASA, are testing new methods and technology that can make commercial jetliners quieter when landing and taking off -- a growing concern at airports from Sea-Tac to Singapore and Paris.
Passengers also will benefit from the ongoing efforts as cabin noise will be significantly reduced.
Some of the technology being tested here will find its way onto the 787, which is due to enter airline service in 2008, as well as the 747 Advanced and even planes now in production.
Wednesday, with reporters watching and listening from the ground, as well as representatives from NASA, General Electric and Goodrich, a 777-300ER on loan from All Nippon Airways made several low-level passes over the airfield to demonstrate advanced noise-reduction concepts.
More than 600 ground-based microphones, acting like acoustic cameras, monitored the jetliner's noise as it flew overhead, and computers wired to the microphones immediately analyzed the data and verified that the modifications made the big jet less noisy.
"We are trying to make the 787 significantly quieter" than today's planes, said Eric Nesbitt, a noise engineer in Boeing's product development for commercial airplanes.
GLASGOW, Mont. -- At a remote airfield in northeastern Montana, where the quiet is usually broken only by the singing of Western meadowlarks, a Boeing 777-300ER jetliner made some symbolic noise of its own Wednesday.
But it was the lack of noise from the big plane that will help advance aviation.
Technology being tested on this Boeing 777 in Montana is expected to find its way into 787s, due to enter service in 2008, and the 747 Advanced.
The Boeing Co. and some of its partners, including NASA, are testing new methods and technology that can make commercial jetliners quieter when landing and taking off -- a growing concern at airports from Sea-Tac to Singapore and Paris.
Passengers also will benefit from the ongoing efforts as cabin noise will be significantly reduced.
Some of the technology being tested here will find its way onto the 787, which is due to enter airline service in 2008, as well as the 747 Advanced and even planes now in production.
Wednesday, with reporters watching and listening from the ground, as well as representatives from NASA, General Electric and Goodrich, a 777-300ER on loan from All Nippon Airways made several low-level passes over the airfield to demonstrate advanced noise-reduction concepts.
More than 600 ground-based microphones, acting like acoustic cameras, monitored the jetliner's noise as it flew overhead, and computers wired to the microphones immediately analyzed the data and verified that the modifications made the big jet less noisy.
"We are trying to make the 787 significantly quieter" than today's planes, said Eric Nesbitt, a noise engineer in Boeing's product development for commercial airplanes.
Comment