I've done an acceptance flight with the flight test crew a 50 seater turboprop once.
Flight test engineer said. No specific limit but they accept up to 750 fpm climb at max diff pressure, else it goes back to check where it leaks for aircraft out of the factory - new or used.
Had a turboprop in Cargo outfit doing 2'500 fpm becaus of a missing seal and a misaligned door.
Last edited by error_401; 11th Jul 2012 at 07:53.