Turbine Engine: For the ultimate in realism, you can't beat a miniature turbine engine. On the other hand, they are pretty big for RC helicopters, and generally, only appear on full- and large-sized helicopters (see below on size classifications). Gasoline is available almost anywhere and you just need some 2-cycle engine oil to go with it. These don't generate as much noise as the nitro engines. Gasoline Engine: Some larger RC helicopters use a tiny 2-cycle gasoline engine. Some people call these 'gas engines,' which is not correct. These engines run at extremely high RPM, up to 17000 and make a very piercing screech when powered up. Sometimes known as a 'glow engine,' this type of engine is closer to diesel in that it does not use a spark plug, but uses a mixture of methanol, nitro-methane, and oil. Nitro Engine: For longer flight duration, a nitro engine is needed. More sophisticated battery-powered helicopters (mini or midsize) can use replaceable battery packs (keep a couple of charged batteries around!) Recent advances in lithium polymer batteries allow an impressive amount of power to be stored in a lightweight package, and RC heli makers made use of them to deliver many minutes of flight time in such a tiny package. There are four types of power used in RC helicopters: battery, nitro, gas, and turbine.īattery Power: The vast majority of RC helicopters are powered by a rechargeable battery.

There are three ways to classify RC helicopters: engine, size, and sophistication. Yes, it's that small, and yes, it's a full 6 CH bird. Here's the WLToys V922 next to a can of 12 oz Pepsi.

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