Boeing 747-400 flying testbed for Rolls-Royce engines.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...7_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...boeing_747.jpg
Previously:
https://www.homemadetools.net/forum/...761#post178818
https://www.homemadetools.net/forum/...976#post164430
https://www.homemadetools.net/forum/...513#post104455
https://www.homemadetools.net/forum/...287#post185022
https://www.homemadetools.net/forum/...018#post125382
https://www.homemadetools.net/forum/...750#post124142
