O.S. FS .30 S
04-17-2005, 03:55 PM
#1
Thread Starter
O.S. FS .30 S
After 16oz. of Magnum 15% Nitro with extra castor added: Elev. 4000 ft., 70 Deg., O.S. F plug and 9X6 APC prop.............11,460 peak, idle 2,200.
9x7APC.............................11,110peak
9x8APC.............................10,160peak
9.7x5APC (.3 chewed off by long prop/short landing gear
.................10,860
9x7APC.............................11,110peak
9x8APC.............................10,160peak
9.7x5APC (.3 chewed off by long prop/short landing gear
.................10,860
04-27-2005, 07:17 PM
#2
RE: O.S. FS .30 S
I havn't measured any rpms but to just run mine, the 9-7 seemed to work good for me. Needle setting seems easy. 15% 700' 70F
I was afraid it was over reving with a 9-6. I tried a 10-6 and the engine wanted to run kinda hot on top end. Couldn't set the idle. It would be too rich regardless.
Had simular experience with Magnum 30 except it has a 2 needle carb.
Enjoy,
Jim
I was afraid it was over reving with a 9-6. I tried a 10-6 and the engine wanted to run kinda hot on top end. Couldn't set the idle. It would be too rich regardless.
Had simular experience with Magnum 30 except it has a 2 needle carb.
Enjoy,
Jim
04-30-2005, 09:26 PM
#3
Thread Starter
RE: O.S. FS .30 S
The little O.S. has a home. I hope it's strong enough. I have a 3 blade MAS 9x6 to try, and will post the results. After carefully balancing the 3 blade MAS, and having my tach at the ready, when I fired the engine I felt a nice breeze hitting me. Oops, I bought a pusher. Update on the O.S. 30 in the Slow Poke. It powers the plane very nicely.
