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Quiet Technology Demonstrator Two, QTD2, Landing Gear with Tobbogan Fairings
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Quiet Technology Demonstrator Two
Equipped with a specially modified engine and packed with microphones and other sound-measuring equipment, this 777-300ER aircraft—the Quiet Technology Demonstrator Two—was the focus of a remarkable collaborative 2005 research and development program. The ultimate goal: to reduce cabin and community noise to the point where it is no longer an issue for passengers or people who live near airports. To combat the sound of jet-blast from the rear of the engine, Boeing, General Electric, and NASA developed serrated edges called chevrons for the back of the nacelle and the engine exhaust nozzle. The chevrons reduce jet blast noise by controlling the way the air mixes after passing through and around the engine.
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Unique identifier
BI232177
Boeing ID
dscf0159a_qtd2
Type
Image
Size
3024px × 2016px 17MB
License type
RM
Keywords
2000s
777 family
777-300ER
airplanes
airports
beauty
blue
brown
close-ups
clouds
commercial
commercial passenger planes
copy space
currently in production
doors
engines
exteriors
flight lines
fuselages
glare
Glasgow Flight Test Center
gray color
ground shots
half-length views
high-tech / advanced
jets
landing gear doors
landing gears
large
main wheels
monoplanes
Montana
nose gears
orange
other livery
payload systems
perspective lines
photos
propulsion systems
pylons
Quiet Technology Demonstrator Two (QTD2)
right side views
shadows
stairs, lifts and ladders
stairways
structural systems
sunrise
swept wings
tarmac
testing
wheels
windows
Restrictions