Trainer keeps wanting to climb, how to trim a plane q's
Another thing to check.
What is the incidence of the wing? Many trainers, including mine (GP PT40 Kit), needed the popcicle stick adjustment. Sounds silly, huh. Well, all you do is place a popcicle stick in the wing saddle under the trailing edge of the wing. If it stops climbing (make sure all the controls are set to neutral) you have solved your problem.