Hi Gyro,

Well congrats on buying new engine. Second thing is that either engine is chinese or taiwanese, these engines are really good. About Leo engine, you can read users reviews in engine research section. Im gonna do that too. I have experienced chinese engine ASP which was .46 I think its the best engine I ever had, screaming roaring and flew my 40 size trainer with 11x6 prop great, and it gave me nearly 40 to 50 feet vertical as well. I had Evolution engine too which I still have it, it came with Hangar 9's P51 Mustang PTS, after a year, that engine gave me hard time but it was really superb in the start, really pulling the mustang good.

Now about this tuesday's flying. Man it was the best day I ever experienced since I got the plane. As my 40 size trainer with ASP engine a friend of mine lost in the air, never found it, though loss was so much, but he got me a 60 size local made easy sport plane and due to that HB engine, it got damaged more than 4 times. Anyway, I had got the K&B's .61 size engine fitted in it with a fuel pump at the rear which we didnt use it. We took 3 planes, wind was probably 12 mph/ 19 kmph, that wind was so great we got there at around 9AM and I did nearly 6 flights of my plane and all flights were good, and one flight was maximum 8 minutes which could have been doubled if I didnt have dead sticks. My friend's planes flew real good, and I flew his planes too, one was low winger 25 size and one was 40 size both with O.S. engines. Altogether we did nearly 15 to 18 flights and it was awesome whatever I missed in flying, I got to fly all I was so happy, no plane damage nothing. My plane flew good but as wind was quite hard, my plane didnt tend to move forward in the air, it was kinda hovering and being stagnant in the air, moving very slowly, but naturally with a nose dive it was fast. I put 12x6 Xoar's prop, but I felt like it was not pulling it great the way it should have been or due to wind. Well I unmounted the engine, removed carb, sunk the engine in kerosene oil so that whatever the dirt, and other things which may cause the engine stalled gets out, and engine was sitting for many years, so that gunk cleans out too, and it can fly good. I covered the rear fuel pump by putting pipe in both nipples as some of the fuel was leaking too, it could have been the cause too,. Engine is very light as compared to HB, I also re-positioned the fuel tank which is almost exactly or little bit up than carb's nipple. I changed the prop as well and installed Thunder Tiger's Cyclone 11x7.7 to check how it flies now. Im gonna let you know the input about this sunday's flying again. At least my plane flew that made my day for sure. I hope this engine is gonna run great after all cleaning. As far as your post is concerned here, I dont understand what P-factor and assymetrical trust are I know symmetrical which has equal halves asymmetrical one equal half I think rest I dont know. I'll keep you posted about next sunday.

Good Luck gyro and keep flying good.

Mody