Learjet 60 Pilot’s Manual
PM-123 4-21
Change 6
TAIL LOGO LIGHTS (OPTIONAL)
Optional tail logo lights may be installed in the horizontal stabilizer on
either side of the vertical stabilizer. These lights are used to illuminate
both sides of the vertical stabilizer. The lights are controlled through the
NAV switch in the LIGHTS group on the center switch panel.
Aircraft with NAV LOGO-NAV-OFF Switch: When the NAV light
switch is placed in the NAV LOGO position, the tail logo lights and
navigation lights will illuminate. To use the navigation lights without
the tail logo lights, select the NAV position of the switch.
Aircraft with NAV-OFF Switch: When the NAV light switch is placed
in the NAV position, the tail logo lights and navigation lights will
illuminate.
Electrical power for the tail logo lights is 28 VDC supplied through a
15-amp current limiter. Power for the control circuit is 28 VDC supplied
through the 1-amp LOGO LT circuit breaker on the copilot’s circuit
breaker panel.
ANTI-COLLISION (BEACON/STROBE) LIGHTS
Anti-collision lights are mounted on top of the vertical stabilizer and on
the bottom of the fuselage. Each light incorporates two flashtubes —
one with an aviation red filter and one with a clear filter. The lights are
controlled through the BCN/STROBE light switch in the LIGHTS
group on the center switch panel.
On aircraft not modified by SB-60-33-7 (Modification of Strobe Light Switch),
when the switch is placed in the BCN/STROBE position, the red flash-
tube in each light will flash if the aircraft’s weight is on the wheels or
the clear flashtube will flash if the aircraft’s weight is not on the wheels.
On aircraft modified by SB-60-33-7 (Modification of Strobe Light Switch),
when the switch is placed in the STROBE position, the white flashtube
in each light will flash whether or not the aircraft’s weight is on the
wheels.
.
When the switch is placed in the BCN/STROBE position, the red flash-
tube in each light will flash if the aircraft’s weight is on the wheels or
the clear flashtube will flash if the aircraft’s weight is not on the wheels.
When the switch is placed in the BCN position, the red flashtube in
each light will flash whether or not the aircraft’s weight is on the
wheels. Therefore, when the clear strobe light is not desired in flight,
the switch must be set to BCN or OFF. Each flashtube pulses at a rate of
approximately 50 pulses per minute. The lights operate on 28 VDC sup-
plied through the 7.5-amp BEACON-STROBE LTS circuit breaker on
the copilot’s circuit breaker panel.
Change 6
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