OS Engines FSa-56II Airplane Engine with F-4040 Silencer | Horizon Hobby

Give your 40-size plane the FSa power advantage! Mount the FSa-56II in your model, and see the difference advanced O.S. 4-stroke technology makes! Those benefits include a higher performance ceiling for sport flyers and more realistic flight for scale pilots. Plus, you’ll also enjoy rich, deep sound that will enhance your flying experience. The popular FS56-a now features upgrades that make it even better than before! Blow-by oil exits through the breather nipple on the back plate, for more stable operation. Black rocker covers gives this engine a more impressive appearance. The F-4040 silencer can be positioned to achieve the ideal fit. Mounts with no-mod ease in the same space as the FS-56a.