Probably came from a piece of heavy equipment??
Close.....the rotating assembly on a h53
Ever mess with the CH47? Ive heard the CH53 and CH47 are very similar, only advantage to the CH47 is its ability to work in hot areas where the CH53 has troubles.
yeah i see those here in jacksonville all the time...im at the air station in new river, heres my bird...the ch-53E
http://farm3.static.flickr.com/2757/4175067554_535dbff5db.jpg
Heard they leak hyde fluid like its raining.