RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes
Hi Brenner,
Last weekend I witnessed one of your contra drive units in action. It looked very well engineered and performed quite well in calm conditions. The owner said that he was waiting on the arrival of new props to suit windy conditions.
I was quite surprised by the noise footprint having heard about the funny games played by the other contra drive manufacturer with noise tests. Your unit sounds great and is much quieter than I expected. It had everyone's attention.
Attached is a photo of the model.
Cheers,
Jason.