ok thanks. I was assuming I had those correct. I was pulling the info from another site where I have them posted, but when I put them on there, I got the info from this site...
http://www.joebaugher.com/usaf_serials/1960.htmlWhere did you find the info that there was supposed to be a "0" before the 3451?
from the site -
60-3448/3452 Boeing/Vertol HC-1B Chinook
3451 (B-10) Accepted by the US Army Dec 8, 1962. Designated JCH-47A. Redesignated CH-47A. 12/8/62: TOS USA as JCH-47A ("J" stood for “Joint" as a result of the Air Force and Army cooperation in developing the aircraft.) Ca.1963: Redesignated CH-47A following completion of Phase F testing. Unknown date: 49th Aviation Company ARNG (Delta Schooners), Stockton, CA 4/11/75: SOC. Ferried from Stockton to United States Army Aviation Museum, Ft. Rucker, ALSOC Apr 11, 1975. Put on display in 1978 at US Army Aviation Museum, Ft. Rucker, AL