Garry,

May I suggest that the best way to control your T33 gear is to use an Ultra Precison valve which is what I used in my T33 . It is very easy to set up for the correct sequence and both door and gear speeds are controllable via built in needle valves. Once set it never needs adjusting. Works perfectly. Years ago I built a BVM F86. The gear was clever, but a dog's breakfast, using cranks levers. pushrods, and two retract servos. I could never get it to work reliably due to inaccuracy in the retract servos. I ripped the cranks, levers and servos out and converted the whole thiing to air power with a UPS valve as the controller, easy to install, a doddle to set up and cannot go out of adjustment. That F86 will be flying this weekend and I have never adjusted it in the years since since installation. The design was offered to BVM to save others the frustration I went through but nothing came of it. (NIH!)
Regards,
David Gladwin.