- 10 X 4 prop at 10,500 rpm
- Smaller case design for lighter weight
- Nearly the same case size as a .30, but packs more power
As far as modelers are concerned, there’s no sound like the sweet sound of a Saito engine. Saito’s latest wonder is the FA-40a, which shares nearly the same case size as the FA-30, but packs a whole lot more punch. All this power coupled with solid Saito craftsmanship and the standard 3-year warranty is sure to make this potent little 4-stroke one of the year’s most anticipated engines.
| Displacement | Bore/Stroke | Muffler |
| 0.40 cu in (6.6cc) | 22mm / 17.4mm | Included |
| RPM | Weight | Recommended Propeller Sizes |
| 2,000 - 12,000 | 301g | 2 Blade: 10x7 - 11x6 |
