Preflight info for our new
magneto system (back to top)
This engine is equipped with computerized LASAR Ignition Magnetos
From Unison Products. Operation of this system is automatic,
you do not have to turn the computer on. The system differs from
the original mags in the following ways:
1. In normal flight the computer continuously analyzes a number
of engine operating parameters and sets the ignition spark advance for
optimum performance. This feature results in improved efficiency
over the entire range of engine operations, and can result in a savings
of up to two gallons per hour in cruise operations.
2. There is a red indicator light
installed above and to the left of the throttle quadrant. This
lights to indicate when the computer module is not
operating. This light has a press-to-test
function to ascertain that the lamp is functioning.
3. When the ignition switch is not in the both
position the computer goes offline and the red indicator will be
lit. Thus during mag checks this light should be lit. After
mag checks when the ignition switch is returned to the both position
the computer module will perform a self-test. This results in a
delay of approximately twenty seconds before the red light goes
out.
4. The LASAR system's computer is a failsafe design.
Should it malfunction, control is returned to the engine's regular
magnetos and operation is completely normal, although, there
would be some increase in fuel consumption. The
red light would be lit. It is quite acceptable to
continue operations in this mode, however the failure should be brought
to the attention of maintenance staff as soon as is practical.
