Aircraft - Aviation - Balloons - Helicopters
Dec. 04, 1957 - Noise absorbing device for jets.: Has been developed by the American Boeing-air-craft works in two years. In order to muffle the terrific noise of the jet-motors not only during start- for this cause are already special devices available - but also during flight - the noise is being muffled by addition of a silencer consisting of several pipes. Inside the air-craft the noise is being muffled by this special device to a minimum, although it was not by deafening as on the ground. Photo shows two motors of the Boeing 707, the first jet transporter of the United States, with the added mufflers
Picture No
13183925
Media ID
46928790
Size
3725px x 4955px
(810KB)
Credit
(c) Keystone Pictures USA/ZUMAPRESS.com/Mary Evans
Usage Restrictions
Editorial Use Only - No Property or Model Releases. For any non-editorial use, please contact Mary Evans direct
Source
Keystone
