FEATURES:

The PYRO 850 is a very powerful motor with more than 5 kW continuous power which can be used in large electric airplanes and also in your 800 sized helicopter. Here you can see his complete capability.
The PYRO 850 is available in different shaft types. For aiplanes , the "P" type with threaded shaft allows for direct prop mounting. The "L" type with an 8mm shaft allows a perfect fit in all helicopter applications. The "XL" shaft has 10 mm diameter.
To find out which one the perfect PYRO 850 for your application is, there are four different RPM versions available.

The PYRO 850 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

SPECIFICATION:

-235 RPM/V
-Max. 25,000 RPM
-8 mm shaft
-14 poles

-55 mm free shaft length
-575 g / 20.3 oz
-3.5  kW
-39 mΩ Ri