RE: GROUP BUILD - Top Flite Giant Scale F4U Corsair
Wulf190
A Jomar gear / door sequencer plus 3 mini / micro servo is really very light. It is quite easy to have this servo + bellcrank operated gear door system working consistently. There are two things I would like to remind you.
1. Make sure the mini/micro servo you use has adequate torque to hold the doors in flight.
2. I was not able to adjust the servo travel once the servos are connected to Jomar sequencer. So, both the retract valve servo and the gear doors servos are operated on full travel. I just mechanically adjusted the set up so they open / close doors properly. I think there are some electronics out there you can use to adjust the servo travels. But it beats my purpose of keeping it simple.
3. Like you said, if you can remember to open and close doors, then you don't need to mess with the sequencer, making your system even more reliable.
Onewing