Brett, thats a dubious number, most publications list the CH-47
service ceiling around 18,500.
In any case, this is a good discussion of payloand and range at MSL to 3000':
http://skinnersgouge.com/uploads/2/8...5-09_rev_f.ppt
Last edited by SansAnhedral; 31st Jan 2014 at 12:08.