Designation:
The BSM-9 magneto is designed for generating high voltage pulses and distributing them to spark plugs of a 9 cylinder piston aircraft engines.

Description:
The magneto is an electric machine with the magnetic system arranged in a rotor. The transformer is build into the body of the apparatus. The magneto produces one high voltage pulse per each magnetic flux direction change, four pulses per one rotor revolution,
The distributor disc has 9 electrodes.
An engine is started from a starting coil (or starting device) through the distributor.
The magneto is shielded and suited for shielding the ignition cables.


Technical data:
Rotor speed 600 to 3000 rev/min
Ignition timing advance angle 150 +/-20
Sense of rotation of the rotor anti - clockwise (as seen from a drive side)
Weight 5.4 kG