PYRO 650 The PYRO 650 perfectly fits into the PYRO family and is almost as strong as the PYRO 700. It is the perfect motor for 550 / 600 sized helicopters. The PYRO 650 can handle up to 3 kW continuous power for ultimate 3D flight ability. The available RPM types fit perfectly to applications up to 12S. This is the motor of choice for contra drives Please contact on advice for which version is best for your contra. PYRO 650 in short: Neodym magnets, heat resistent up to 150 degree C Dedicated enameled wire, heat resistent up to 300 degree C Optimized metal sheets Optimized ventilation Radial fan Optimized magnet circuit