Saito continue to expand their radial engine line with the addition of the FA-120 3-Cylinder Radial. Ideal for 60-90 sized models, (you always loose a little power with a multi-cylinder; whilst gaining huge amounts of kudos). The FA-120R3 is an upgrade from the FA-90R3 engine, featuring 33% larger displacement and more power; all at a lighter weight for a higher power-to-weight ratio. The FA-120R3 also comes with a 3-piece flex exhaust system, making for an all-inclusive package.
Product features include;
FA-120R3 is an upgrade from the FA-90R3.
33% larger displacement and more power, all at a lower weight for a higher power-to-weight ratio.
Complete with a 3-piece flex exhaust system for an all-inclusive purchase.Like all Saito engines, this powerhouse is engineered with that same Saito quality and reliability you have come to know and trust.
FA-120R3 Instruction Manual – FA-120R3-manual
Bore: ø 22.4mm x 3
Stroke: 16.2mm x 3
Stroke Volume: 19.15cc
Practical Speed: Approx. 1,800 ~ 10,000rpm
(Recommended highest speed on ground: 8,800 ~ 9,500rpm)
Recommended Prop: 13 x 8in, 14 x 6in
Fuel: Synthetic Oil (Above 20%) with 15~20% nitromethane content
Fuel Flow: Approx. 25cc/minute (at full throttle, approx 9,400rpm).
Fuel flow varies depends upon propeller lead. More fuel flow with larger load & less fuel flow with smaller (In actual flight, fuel flow somewhat increases.)
Static Thrust: APC 14 x 5in – 3.5kg (9,400rpm)