Been flying the runways again and I cannot believe this Yamaha engine, it has exceeded my expectations in every way so far, I have been flying at 65 MPH air speed and still at only about half throttle, it still has much more to offer, you can just feel it...this thing rocks!
When I pre rotate my rotor blades up my prop does not turn fast enough to give much forward thrust because of that huge pre rotator drum I had to build, so when I get my blades up to speed I have to let off the pre rotator handle and add throttle to get ground speed up before I loose too many RRPM. I have found I can go from a dead stop to decent ground speed in a flash, I am careful not to hit the throttle too quickly, (I do not want to torque roll it) but I must tell you this baby has got some major thrust, feels like I am in my Racecar when I put the petal to the metal, a real neck stretcher.
I am as giddy as a school girl about this new power I have discovered. More good news my new prop showed up today, It was supposed to take 6 weeks and showed up in less than 4 weeks so I am very happy with Warp Drive, nice when companies do better than what they promise. Now I can do some thrust tests soon, I will keep everyone posted.