Ok Guys here is a small report I will do a detailed report on the CKAero.net

I have to admit I was shocked at the power and torque of the contra with the 9.89:1 gear set and the 20-2.5 prop set. it was really good match right off the bat. The airplane has the breaking built in to it. so I went with no breaking on the esc. To me and everybody watching it didn't need any braking beyond what the Contra/ plane combo provided.
Thanks to every body who offered advise and for Dave Lockhart who answered a lot of Text

The power curve tracked really close to the YS powered model I was already flying. Bear in mind I have about 6 flights on the glow version and now have 6 flights on the contra, I set them up identical. The thrust, inc. and throws were exactly matched . the only small difference I had was the Contra CG was 1-1/6" farther forward than the glow ( and where I wanted to run it on the glow anyway)

The power performance on the Contra was impressive. The main difference is like all electrics the speed surge on throttle was more jumpy than the Glow But that is due to the massive amount of Pitch in the props and low rpm/torque on the Contra, versus the pitch/higher RPM on the glow model. It was really easy to get used to because of the fluid feel of the design. The Allure never is zoomy and with the larger props and power we have with both systems, the airplane is a perfect match for either version.

There was absolutely no Yaw problems the contra version and It performed just like the Glow version. I could not tell any difference ,Both models have no pitch .roll, or, up line pulls and after being slightly tweaked, this will be the same for any knife edge demand, or integrated rolling maneuvers. I will have some flight videos posted on CKAero.net soon to demonstrate the performance.

THE CONTRA ALLURE EXCEDED MY EXPECTATIONS !
My hard work in the field Testing and working with the Shark and Valiant paid dividends on this model. I can now endorse the Contra Unit for my New designs. I look forward to getting it Back from Scott and tweaking on it, flying it, and trying all the gears and prop combo`s. I`m not sure he will be willing to give it back But , I know where he lives

Look us up at a contest and I will be glad to let anybody fly it. I`d have to say,
If I were flying Electric,, The Contra would be my choice without a doubt , it`s well designed. In the Allure on a 100 deg day with 100% humidity the unit and motor/esc ran cool with no baffling that really surprised me . So it seems the cooling cheeks and vent I have are a good place to start. I want to thank Brenner for sending this unit to me to work a design around . If you fly electric, and your on the fence ,jump off!
Buy a Contra put it in a good airframe and you will have a great Combo.

I know I`ve been cautious to join the fray when it comes to claiming the greatness of the unit, Because I don`t follow the leader. I also didn`t believe all the Hype about what it was responsible for aerodynamically. It seems ,I was proven right on one of those

Bryan



Bryan