Hey guys,

I am building a small twin running two OS .10FP's. I'd like to try and stay scale, so I am looking for a Pitts or similar type of concealed muffler. I know the engine is small and somewhat of a rare bird, but are there any appropriate mufflers out there for this type of application? Ideally, the engine would be mounted inverted with the stacks exiting the cowls on the side(s), however, I could live with them exiting the top or bottom as well.

Also, is there anyone out there who makes 6" or 7" three-bladed props? Smallest I have found so far are Master Airscrew and APC, both of which were 10".

Thanks a bunch!

im not sure about the pitts type mufflers, but i know you can probably cut those 3 blade props down to the diameter you need. just get the proper pitch you need, and try to get as close to the diameter you need as you can.

now that i think of it, i believe grish makes small 3 blade props.. i know i have a couple i bought for an .049. www.grishproducts.com

remember when switching to 3 blade props, use 1" in diameter less than you would with a 2 blade.

Awesome - I was not aware of this manufacturer - Thanks! These are exactly the props I am looking for!

yw. =)