Turbine RC Engines: Taking Helis to the Next Level

Experienced RC helicopter hobbyists may eventually tire of the standard electric or nitro-powered models, and look for something a bit more exciting. Turbine-powered engines offer excitement and power like no other heli around. And flying a turbine jet RC is about as close as you can get to the real thing without a pilot’s license.

On the outside, the construction and size of turbine RC helis are about the same as the nitro or electric models. In fact, engine kits are available to convert just about any scale model heli into a turbine-powered. The transmitter and controls are similar, so an experienced flyer should have no trouble making the switch.

A turbine engine is essentially a jet engine, and that goes for the sound, smell and power. The turbine engines in RC helis operate in the same manner as a jet engine in a full-size aircraft. Compressed air mixes with fuel and is then ignited. This combustion produces thrust that spins the turbines at 195,000 RPM or more. What this means is that tons of heated air is pushed out the back of the engine resulting in incredible speeds.

Besides the speed and total awesomeness, the main difference between turbine engine helis and all the others are the engine systems, including the computerized engine control unit, fuel pump and valves, fuel tank size, universal air trap, gear box lubrication and auto start motor. These additional components require electricity, which means extra battery power is necessary.

Turbine engines do suck down fuel, using nearly 100 mL of fuel each minute. The engine requires either kerosene or a combination of jet A1 fuel and turbine jet oil. Propane gas is also needed to start the engine, but costs are minimal. Despite the specific fuel needs, the total operating costs are slightly less than a nitro-powered heli. Regular maintenance is also necessary, but quality engines are good for six or more flying hours before a tune-up.

One important thing to keep in mind before heading to the hobby store is the price tag. Retail prices of turbine engine helis can range from $5,000 -$15,000. Given that type of investment, a crash would be devastating: novices need not apply. Be honest about your skill level before considering the transition. If you know what you’re doing and have money to spend, there’s no greater thrill in the hobby.