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PLEASE NOTE: Currently we are still only open for Telephone and Internet Orders.
(Please respect our decision not to re-open yet. We want to see how things go over the next few weeks)

At present suppliers are low or out of a lot of Stock, and some deliveries may take slightly longer than usual.

Telephone Hours will be 10am-3pm, Mon-Fri till further Notice. 


Saito FG-21 4-Stroke Petrol Engine [SAT21FG]
FREE Delivery on this product!
RRP: £549.95
Our Price: 472.90 

• The FG-21 runs with any good quality forecourt petrol, mixed 20:1 with oil.

• Power comparable to that of the FA-125a.

• High quality professional finish adds scale realism.

Spurred on by the success of the FG-36, Saito have developed a smaller petrol four stroke engine, the FG-21. Supplied with an electronic ignition system, the FG-21 offers power comparable with Saito's FA-125a glow engine. The carburettor features a diaphragm pump that is very tolerant of differences in fuel levels, making it unfussy regarding fuel tank positioning. This means you can now fit the tank to give the best centre of gravity for the airframe rather than worrying about the best position to keep the engine running. The pump also allows for smooth running during advanced aerobatic manoeuvres.

Bore: ø32.0mm

Stroke: 26.0mm

Stroke Volume: 20.91cc

Weight: Body - Approx 690g, Muffler - Approx 83g, Ignition System - Approx 113g, Mount - Approx 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: 15 x 8 ~ 16 x 6in

Static Thrust: 3~4kgf (8,800RPM)