Polish or Not?

[GyroRon]

They were the older style Rotorhawks. They flew pretty good but not the smoothest in the world.

[Screw]

I got my cooling problems solved. I may not need new DW, but I sure would like some anyway. I't amazing how cool you can run a motor with the nose down.

John-

[Screw]

Well,

I bought a used set of 23 DWs from Docjon. Cant wait to flyem.

John-

[MikeBoyette]

John,
Good job I hope you enjoy them. 23' should work out great for you. Just remember to take it slow the first time you fly them they won't take air as fast as you Brock blades. I don't know what prerotator you have but get them above 150 rpm before you even taxi. They will start below that, but better save than sorry. Good Luck Fly Safe.

[robertstodaro]

Originally Posted by DaScrew-Driver

I got my cooling problems solved. I may not need new DW, but I sure would like some anyway. I't amazing how cool you can run a motor with the nose down.

John-

How did you cool that thing?


Was it just trim?

Thanks rst

[Screw]

That statement was premature. I'm still having cooling problems and I am currently working them out. The engine is getting way hot because I am way in the throotle to stay airborn. My tach only goes out to 3500 and it is pegged on takeoff. This if ok, but cruise should be around 3000-3100 rpm. If I'm less than 3400rpm I decending.

I have installed a larger oil cooler and changed blades to DW 23 footers. Hopeing the more efficient smaller blades won't work the engine so hard. I want to see how this works before I try AVgas. If Avgas in combination to what I have already done doesn't work, I have to send the motor back to the Great Plains and have them enlarge it to a 2130 or 2180cc.

John-