Now now, don't say anything yet, what i meant by new propeller is a new way to make Propeller Engine, how?

So far i have been thinking if i can use Helicopter Engine to make plane propellers and it is surprisingly a yes, i have a pusher prop built with this engine, there are also several pro's on using Helicopter Engine, it was quiet (the chopping noise is less noticable compared to normal propeller), very fuel efficient, and can be very powerful, with power figure of 2500hp for the small heli engine, this thing is a bargain and a good thing to use, plus, since it has torque already you don't need to add engine torque machine or machinery that will apply torque to your plane

You only need to take out all the pitch and roll control and that's it, the throttle governor is needed to engage the prop, collective pitch range to 65% to 75%, and collective pitch input to throttle, its that easy, just don't forget to invert as you wish and tune it to your liking