RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes
Hi,
I'm sure the observed effects are the same/similar.
However I'm told that the engineering principal is different.
I may have been misinformed.
As I understand it yours will have the props running at the same speed/rpm as each other regardless of the load on each.
Theirs can run the props at different (to each other) speeds depending on actual load.
If this is the case they do not have to exactly match the blades to thrust load as they will self adjust to share it.
In Austria we saw another system, involving belt drives.
This was how Akiba might interpret yours, with belts instead of gears.
Brian