TM-55-1520-240-10 is a great reference for the Chinook. I used to have a hard copy (courtesy of the US Government) until my apartment building caught fire.......no worries though, i managed to save the Aurora HC-1B kit.
Anywho....another great reference is an old Airfax book on the Chinook. I think it was Airfax 27 by David Anderton. Another is the CH-47 In-Action series done by Squadron. Needless to say, these too were lost in the fire.
Back to the drawing board.
2 Burnin' - 6 Turnin'
Ramps Up, Ready In The Rear