How Was The Old Airliners Presurrized

Sun Feb 11, 2001 2:45 am

hello does anyone knows how the old planes like the connies and the dc6 dc7 were presurized i mean using bleed air form the engines or if they had a separate compresor. I know the modern planes uses bleed air from the engines but the new planes are made out of plastic I do like the old heavy ones those were really planes.
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RE: How Was The Old Airliners Presurrized

Sun Feb 11, 2001 7:22 am

The prop liners bled air off the turbochargers used to boost engine performance.

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Joined: Tue Nov 23, 1999 11:02 am

RE: How Was The Old Airliners Presurrized

Wed Feb 14, 2001 12:42 pm

Some of the aircraft had shaft driven compressors to pressurize the cabin. When jets came in they removed the shaft and attached a turbo and called it a turbo-compressor and used freon cooling for airconditioning (just like your car). Turbo-compressors were on such aircraft as 707 and DC-8.

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