Heli
IMZ RV-50S Heli Engine w/ Muffler

For the heli modeler in the market for the best .50-size heli engine money can buy, the search is over. JR’s IMZ RV-50S has everything a power-hungry pilot could want, including a KSJ tuned muffler.
Evolution .52NX Heli Glow Engine w/o Muffler

The Evolution .52NX is designed to be the most powerful in its class.
Speed .35 Heli w/ Promix II

This is Webra’s most powerful engine for .30-size helis. Its user-friendly tuning, reliability, and modest price make it an excellent choice for the novice flyer.



