Want even more punch than even 91FS can offer? Then look no further than the Saito FA-100 which gives even more power for a similar size and a marginal increase in weight. The re-designed case shares the same mounting dimensions as the OS 91/ASP/SC 91 FS, making upgrading possible for even more aeroplanes.
FA-100/FA-100GK Instruction Manual – FA-100-manual
Practical RPM: 2,000 ~ 11,000
Recommended Prop: 13 x 9 ~ 15 x 8in