Dale,
I have placed all the CAR's on my web site:
http://www.stacheair.com/
CAR-4 has the limitations and is pretty close to Part 25. The type
certificate data sheet calls Army Technical Orders 01-40NC-82 and
01-40NC-86, which should have the limit load requirement.
You can contact Technology Transition Office Wright Patterson AFB
(800)203-6451 who can track down the correct manual to give the load
limits. I have use this office on several projects I have worked on.
Stache