Tha Caproni Calif A21S will do that. No limits on the belts, just a max total cockpit load (typically around 400 lb). As it is a side-by-side, CoG is not an issue.

Le dimanche 21 mars 2021 Ã* 14:55:24 UTC+1, Hank Nixon a écritÂ*:
We are looking at what gliders may be suitable for heavy pilots. Gross weight, max mass of non lifting components, and forward CG limits. Subject pilot weighs 280 lb.
Ant experience out there?
Thx
UH