Hope someone can help....

I have a new 140L on a scatch build cap, about 9.5 lbs. I need to know what would be the best prop for 3d flying. I am looking for it to back down and pull out vert in a hover.

Thanks
Chris

I have a YS-140L in my Extra 300sx. The best prop I found is an APC 18x8W(8100 rpm) for 3D. I suspect an 18X6W might be better but wont know until I modify my spinner. It's an AWSOME power plant.

Thanks alot i am looking forward to getting it broke in all the way so I can put it to the test...
Thanks
Chris

Are you SERIOUSLY getting that RPM on an 18x8W???? WOW.....I thought that it would have teouble with an 18x6! What nitro and stuff like that did you use?

Now that I have had a chance to fly it and brake it in, it is a great engine. I am getting 9100 rpm with a 18x6 zinger prop, 20/20 fuel with a pitts smoke muffler. I have about 2 gallons of fuel through her and she has converted my cap into a total 3d machine. I the ys 120f was fun but the ys 140L is a totally different beast.

Hope this works for you,

Thanks,
Chris

MY GOD, she's a frikin animal!!! I had no idea that she had that sort of pull.
I would recommend Chris though, that you try an 18x6W, to get the revs under 9000. Thats where they are happiest. (Although 100RPM more doesn't seem like too much).