Does John Travolta 707 Have Hush Kits? - Airliners.net
Stage 3 Jet Kit - Airplane Noise
hush kit Boeing 737-230/Adv - Air Slovakia | | Boeing, Boeing 737, Passenger aircraft
Flight Experience Sydney - What a beauty! This is a 1973 Learjet 25B, with the mandated hush kit for stage 3 noise compliance. Airplanes like this, with turbojet engines, are very loud.
The Hush-Kit Book of Warplanes Typhoon " Essential T-Shirt for Sale by HushKit | Redbubble
Engine Hush kit for Super Q MD 80 airliner jet plane at the Farnborough International Airshow 2006. MD-82, fitted with Super 27 aero engine mufflers Stock Photo - Alamy