stunthanger.com
General control line discussion => Open Forum => Topic started by: Garf on September 09, 2007, 07:28:15 PM
-
Someone locally wants to know if this would make a good stunt engine.
-
I thought that Todd Lee was using them in his Mustangs. I believe they were reworked by Big Art.
-
Don't know about Todd but his dad Jim was using a OS .46SF-S for a long time.
I have an OS .46SF-S, modified by Dixon. Mine is a sweet runner, plenty stunt grunt and run. I'd compare it to a ST.51 after the mods were done on the OS. It is a bit tricky to dial in the right set up (fuel, props, tank, muffler). Depends on your particulars.
Before mods mine kicked -ss like a 60, no stunt run, runaways if 4-2-4 tried.
OS SF-S .46 is same case as .40. 46 is lighter.
Ya might contact Todd if possible to see what he is using for sure and perhaps he can give particulars if it is a .40.
-
Todd and I have both used the 46 SF-S, not the 40. The -S crank is different in that the port timing is 5 deg less on both sides of the opening. Todd's motors have had the addition of 'Big Art' power... #^ They have a LOT of grunt at about the same weight of the ST-51... We both tend to fly in the 5.7-5.8 lap time range with no problems in the wind, just gotta be patient....
And to answer the actual question, I think the 40 would be quite similiar to the 46 except it is heavier.
Jim
-
Someone locally wants to know if this would make a good stunt engine.
HI
Ther OS SF make a pretty good stunt motor if setup right, However the 46 is a far better motor than the 40, The 46 seems to be much more stable and consistant as compared to the 40, This is not saying the 40 doesn't work but I have had lots of experinece with both engines.
I would sorta compare it to the Super Tigre 40 vs 46 the 40 was made to run fairly well but was never was the stunt engine that the G-21 46 was
Randy
-
Bob Baron used both the 40 & 46 engines with various modifications and told me;every time he thought he had the 40 running good, he would try a flight with the 46(in the same plane) and then just toss the 40 over in the corner.
I beleive Paul walker used these engines too,but with modifications.
^-^