This strange invention combines advantages of variable pitch propeller and contrarotating propellers, former being well known as advantageous in terms of soft thrust reversing, engine load control and overload protection, possibility of maintaining constant RPM for an PTO generator drive and cleaner environment and later being known as propulsive device having higher propeller efficiency.
- Category
- Tech News
- Tags
- invention, new motor, new engine
Sign in or sign up to post comments.
Be the first to comment