It would help if we knew what plane or what "Kind of plane" you were gonna use it in, or if you want an all-purpose 60-


I have two that I am currently using and that I would recommend- (Many on the list above are great also esp. Webra-)

Tower- 75 (Can't beat it for the price- and mine does shut-off...)
Rossi-60 (Screams- great if you want some speed-)

Both of these have the same, or very close to the same, footprint of the OS-61FX ... I have used all 3 in the same plane that has solid wood motor mounts- no problems...

Cheers,
james