BOB MOORE

I have an Hangar .60 with an OS 61, what prop do you think I need

linkadrip

I have a twist 40 with an OS .61 FX and tuned pipe on it and an MAS 13X5 prop. And it pulls it with alot of authority, but the plane is the 40 so it weighs less then the 60 size Twist i would try a 13X6 see how it flys with that .

Depends also on what you want to spend on props. if you only want to buy one prop and dont want to spend alot on differnt props i would try a recomended prop for the size engine first.

Of course you dont state if it is an FX series engine if you have an FS engine then i'm sure the recomended props are a little different.

Recommended Props os 61 FX
Tuned Pipe: 12x9, 12x10, 12x11
Sport: 12x6, 12x7, 12x8, 13x6, 13x7

But you know we never go buy what is recomended usually what ever works the best for your type of flying.

Plus you dont state what type of flying your doing 3D, Sport ect a few more details would help others understand what it is exactally you are trying to accomplish.

BOB MOORE

Thanks for your reply. It is a .61 FX. I will be flying 3D

delman

You might try an apc 13x4w as well as a 13x6.

BOB MOORE

Where is Flower Mound, Tx I live betwen Port Arthur and Beaumont. I will try the props you talked about. I have been flying R/C since 1960 and now will try 3D

delman

Flower Mound is about 9 miles north of DFW airport.

Allen Tsang

How was the tuned pipe on OS 61? What was the RPM you got?

chuck993

anyone try an Evolution 52NX or Evolution 61NT on the Twist 40?

mtindall13

no, but i did stuff a supertiger 90 in one...