There are a lot of advantages to going with Petrol, like cleaner operation and cheaper fuel. But Saito 4-stroke Petrol engines give modelers more; namely some of the most impressive power-to-weight ratios in their class. The new FG-21 is no exception. Based on the groundbreaking Saito FG-20, it packs 21cc's of power into a 17cc case. Accompanying the extra displacement is the latest carb technology, updated exhaust valve seats and, of course, the sweet 4-stroke sound Saito engines are famous for.
Features
LINK TO SAITO HAND BOOK BOOK https://www.saito-mfg.com/e-book/index.html
| Specifications | ||
|---|---|---|
| Bore | ø32.0mm | |
| Stroke | 26.0mm | |
| Stroke Volume | 20.91cc | |
| Weight | Body: 690g/Muffler: 83g/Ignition System: 113g/Mount: 156g | |
| Practical RPM | 2,000 ~ 9,500 | |
| Fuel | Petrol(Gasoline): Oil = 20:1 (Volume Ratio) | |
| Fuel Flow | Approx 15cc/min (at full throttle, approx 8,800 rpm) Fuel flow variess depends upon propeller load. More fuel flow with larger load and less fuel with smaller (In actual flight, fuel flow somewhat increases. | |
| Prop | 15x8 ~ 16x6in | |
| Static Thrust | 3~4kgf (8,800RPM) | |
