Nitro-powered models also require a radio system and basic tools for assembly, and have some additional specific needs of their own.

RECEIVER BATTERY: Unlike electric-powered models, which use the on-board battery that powers the motor to also power the receiver and servos, a nitro-powered model requires a separate battery to power the on-board radio gear. Most radio systems include a holder for 4 "AA" batteries to do the job, but replacing batteries can get expensive. Most modelers use a rechargeable receiver battery instead, which requires a charger. Although more expensive up front, a rechargeable receiver pack and charger will save you money in the long run (even not-so-long run).

GLOW-PLUG IGNITER

This heats the engine's glow plug (the equivalent of a spark plug is a full-scale car) so that the fuel in the combustion chamber can ignite and cause the engine to run. Once running, the heat of combustion keeps the glow plug hot, and the glow-plug igniter is removed.

ELECTRIC STARTER

Most entry-level and "play" kits include pull-starters (just like a lawn mower), and do not require an electric starter. But for those that don't have a pull-starter, you'll need either a hand-held, 12V starter or an electric starter box. Both types of starter have spinning, rubber wheels that, when placed against the engine's flywheel, cause the engine's crankshaft to rotate and fire the engine into life.

NITRO FUEL

Although often referred to as "gas powered", nitro models DO NOT run on gasoline. RC fuel is a mixture of nitromethane and synthetic or castor oil lubricants. It is flammable and should be treated with care, but it is not nearly as volatile as gasoline. Never attempt to use gasoline in a nitro engine!

FUEL BOTTLE

This is simply a small, squeezable bottle with a long neck that makes it easier to fill your models gas tank. Pouring fuel into a tiny tank opening from a full gallon jug of fuel invariably leads to mess and waste!