2 stroke to 4 stroke conversion
#1
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From: Tewksbury,
MA
Could someone tell if the O.S 30 FS is the equivalent to the O.S .15 2 stroke, are there any simple conversion charts.
Thanks John
Thanks John
#2

I don't know if there are any charts but in the past we always said " take 10 off and it should be good ". If it's a 30 4s then it should work fine in a 20 size plane. ENJOY !!! RED




