這是新世代的四行程引擎 由於呎吋相同 可輕易從

飛機上替換掉舊的FS-70SII 引擎

 新引擎重量輕 馬力大 可大幅提升飛機的飛行展

示性能

The FSα-81 is the second engine in the new generation of 4-stroke FsαSeries engines. Since the major dimensions are the same, including the mounting dimensions, the new FSα-81 can easily replace an existing FS-70SII with little reworking. With an increase in power due to the displacement increase in conjunction with light weight, scale type aircraft can realize more scale like flight and sport models an increase in performance. The distinctive shape of the engine and silencer symbolize this new generation of 4-stroke FSα Series engines

Displacement(cc): 12.26cc
Output(ps): 1.3ps/11,000rpm
Output(rpm): 2,200-12,000rpm
Weight(g): 556g
Silencer:54g

Propeller:  13×7～9　14×6～7