Headingbug From , joined Dec 1969, posts, RR: Posted (15 years 5 days 10 hours ago) and read 2509 times:
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.
Airgypsy From United States of America, joined Nov 1999, 130 posts, RR: 2
Reply 2, posted (15 years 2 days ago) and read 2093 times:
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.