When I read the thread title.....I assumed someone had come across some piccies of CHUKS in his hidey hole as he hid from his First Sgt!
I have seen two Chinooks on display in Vietnam....one at Khe Sanh and the other at the Military Museum in Saigon. The one in Saigon is one of a kind....as it's rotor blades are all on wrong way to! I'll post a photo when I get the time (and energy). The one at Khe Sanh looked mostly intact but both were in very sad shape.
Interesting note is my Chinook unit transferred all sixteen of our aircraft to the Vietnamese then was restocked with older aircraft.
I had departed the scene to nurse a few bottles of Demerol while all that took place.