YS 61ST2 heli engine for airplane use?
08-10-2005 | 11:55 AM
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From: Prescott Valley, AZ
YS 61ST2 heli engine for airplane use?
Hi,
I need a high rpm 60 engine for a high speed model I'm building. Is there any reason I can't use the 61 ST2 helicopter engine with a propeller? I' want to run a 12x8 at about 13 ~ 15k rpm...
I need a high rpm 60 engine for a high speed model I'm building. Is there any reason I can't use the 61 ST2 helicopter engine with a propeller? I' want to run a 12x8 at about 13 ~ 15k rpm...
08-10-2005 | 02:38 PM
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From: Prescott Valley, AZ
RE: YS 61ST2 heli engine for airplane use?
Dave, I just found your previous posts on this subject, so now my question is whether I could use the longer crankshaft from an old YS 61 FS aiplane engine to replace the shorter heli crankshaft? I have a 61 pattern engine which I bought about 15 years ago, and the crankshaft is in good condition. Or, does YS still stock parts for this old airplane version?
08-10-2005 | 07:40 PM
#3
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RE: YS 61ST2 heli engine for airplane use?
We still have parts for the 61, but the crank will not work in an ST2 as it has a different stroke length.
Drill the props and use a reach through type prop nut, available from Tru-Turn in the thread size you need, 8x1mm.
Drill the props and use a reach through type prop nut, available from Tru-Turn in the thread size you need, 8x1mm.
