Compass Atom 500 on YouTube
Compass Model's Atom line of electric RC helicopters starts of with the Atom 500. It is a 6S, 22.2 Volt Li-Po powered pod-and-boom configuration that is designed to please any RC pilot with beginner-level to advanced-level flight skills.
The helicopter comes in two Almost Ready to Fly (ARF) kit versions. The G10 (designated Atom 500R) contains a glass fiber frame set while the 500 (no "R") ships with an all carbon fiber frame set. The remainder of the heli is constructed with a combination of plastic and aluminum.
The Atom 500 is powered with a 6S Li-Po pack feeding a 60 Amp electronic speed controller while the "R" version uses a 40 Amp electronic speed controller. A 500-sized brushless outrunner electric motor drives the 430mm main blades through a 120-tooth main gear, a 120-degree CCPM swash, and an all aluminum head. Power is delivered to the constant speed tail via a belt drive system.
The Compass Atom 500 has a 962mm main rotor diameter, a length of 835mm, and a flying weight of 1750 grams. It uses 430mm main rotor blades standard.