My buddy Jeff and I worked out a design for bat wings that he's applied to his G24 build and I'm going to reapply on my G28. He first started with the conventional caravan motor design:
This worked well but there was a lot of "shake" in the movement and the wings were not the strongest when you pushed down on the wing or at speed when they started catching wind and created lift.
We worked on a design that uses a lever, linkages and a pivot.
And this is what the finished product looks like:
If your frame is open in the rear and can accommodate the rotating rod across the back, you can use one linear actuator to drive both wings in perfect sync. If you cannot run the rod through the rear, you'll need to power each wing by an individual actuator and sync them manually and run them off a single switch.
In case anyone is wondering, the originals use a linear actuator or either side without the pivot system and they lift the wing via direct contact. I like this pivot idea because It allows you to play around with the speed of the movement by simply changing the contact point and the amount of throw you have in your lever. The rough drawing I'm attaching was a early concept to demonstrate the general idea. I'll start another thread and show you how we decided to do our wing attachment (pivot) points
Just remember that there are a million different ways to do this and this is just one idea that we are using.
Enjoy
Chris
