The Hush-Kit Book of Warplanes Volume 2 by Joe Coles (editor) — Unbound
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
The Hush-Kit Book of Warplanes: Coles, Joe: 9781800180949: Amazon.com: Books
Hush Kit" on a museum 707's engine : r/aviation
727 Hush Kit... | Colin Pickett | Flickr
Hush kit hi-res stock photography and images - Alamy
aviation history - What noise reduction measures were taken in the time between hush kits and chevrons? - Aviation Stack Exchange
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.