Engines roton L500W/12 is fourteen-pole engine with six respectively. eight threads for extension pole with a rotor with neodymium magnets in sensorless design. The engines are very robust and are characterized by relatively high power rating.
The shaft is made ​​of hardened steel with a diameter of 5 mm, the rotor is stored in ball bearings.
On the front of the engine are four mounting holes threaded M4.
Spacing of holes is 30 mm.Vývody engine are standard 3,5 mm gold-plated connectors mounted on the rear face of the engine.
Cooling holes in the casing allow the efficient dissipation of heat from the stator to the engine area ..
The advantage of the engine is that we do not address the problem of how to ensure that the rotating motor casing does not get into contact with the connecting lines. Contacts for the controller on the rear face of the engine, so nothing in the model of the way.
Running the engine while it is comparable to conventional engines, engine bearings distance is sufficiently high.

Recommended controller Jetti: Advace 45 Opto /Spin44
Recommended propeller(inches):12/6 - 14/10

Technical data :

Recommended power supply: 4-5 Lixx,10-14 Nixx
RPM/1V: 765
No load current: 1,4A/12V
Efficiency: 82%
The recommended current range: 20-32A
Max. current:  40 A/30s
Slope resistance: 44 mΩ
Dimensions: ø 36 mm, length 52 mm, ø shaft 5 mm
Weight: 182 g
Number of poles: 12
Setting the controller: 20-23°