The Saito FG-73R5 engine is the first 5-cylinder gasoline radial engine from Saito. This engine is a scale-modelers delight, delivering the incredible sound and smooth reliability that Saito has built their reputation on. Above and beyond the advantages of a 4-stroke gasoline operation, this is the engine for those who like to run clean and efficient engines. Accompanied by Saito power and precision craftsmanship, the distinguished look and sweet sound, this is the engine many of you have been waiting for. This engine provides easy starts and reliable performance due to the 2S Li-Po-compatible electronic ignition. The carburetor features a rotating barrel specially made for 4-stroke engines, ensuring reliable fuel feed and outstanding performance at any attitude. An engine heat sink provides better cooling and performance in demanding conditions. Supplied complete with flex exhausts, engine mount, and electronic ignition.
As an expert in reliable 4-stroke engines, Saito engineers spend years developing the best-built 4-stroke gasoline engines. The power-to-weight ratio of a Saito engine creates a one-of-a-kind flying experience. For serious modelers, the FG-73R5 is here with the quality, sound and precision craftsmanship Saito is known for.
This engine is no toy, it is a serious piece of engineering that is a pleasure to own. I bought this engine for a warbird I built but couldn't get it off the test stand, it was so easy to start and I just love the sound even with the standard exhaust pipes. I found that running the engine at increased increments of 200 rpm from its idle speed, one tank of gas at a time until it reached 5000 rpm increased the running temperature consistently and the engine didn't miss a beat. Some days I altered the temperature of my workshop to simulate winter and summer to give the engine a thorough run in period, I ended up using nearly 20 litres of fuel and enjoyed every moment of it. When it came time to install the engine on the plane, I primed it and again it fired straight away, again I babied it for half dozen flights to get it used to pulling a load and making final adjustments. The day I opened up the throttle and gave 'My Jug' a bit of what for my investment didn't disappoint, the sound of a well tuned engine gives me so much pleasure, well done Saito, your engines are a fine example of what engineering is all about. I now have a 60r3, fg40 and a 182 on test stands, Saito are second to none and I know that I will be enjoying my hobby for many years to come. Hey Saito you need to make a 110-120 cc engine.