Gauging the placement of the air cylinder. Trial and error here. The long hardwood block is to spread the load over more area on the wing skin. There is only so much travel a cylinder will give, so, you must play with the fitment to get the most opening and still close the door completely. Not a 5 minute task. Placement of the control horn is important as well. This is the Ultra Precision 5/8” by 1.5” cylinder with 4-40 shaft. Color coded air lines are by Dream Works.
