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PAPI Precision Approach Path Indicator systems by IQAirport
Compliances: FAA AC 150/5345-28: L-880 and L-881
Transport Canada Specifications K342 ICAO Annex
14
The PAPI System provides the
pilot a positive visual indication of the
aircraft’s position relative to the optimal
glide slope during final approach to the runway.
The L-880 PAPI system consists of four units in
a line or bar, each unit having two or three 200
watt lamps. The PAPI unit produces a beam of
light, the upper portion being white, the lower
red. As the pilot’s vertical position changes,
the color of the light asseen by the pilot
changes instantaneously. Precision Approach Path
Indicator Compliances: FAA AC 150/5345-28: L-880
and L-881 Transport Canada Specifications K342
ICAO Annex 14 Airfield Crouse-Hinds PAPI.pdf
The Style A PAPI uses a Power
and Control Unit (PCU) which has a photocell for
automatic day/night intensity control. The PCU
can be operated by using an L-854 radio
controller signaled by an approaching aircraft.
The Style B PAPI is powered by an L-828 constant
current regulator.
visual indication of the aircraft’s position
relative to the optimal glide slope during final
approach to the runway.
The L-880 PAPI system consists of four units
in a line or bar, each unit having two or three
200 watt lamps. The PAPI unit produces a beam of
light, the upper portion being white, the lower
red. As the pilot’s vertical position changes,
the color of the light as seen by the pilot
changes instantaneously.
How to Order: Construct the
basic catalog number based on the number of
units per system
and the power available. Add dash numbers for
the temperature class and options. Style A
includes the PCU. Style B includes the isolation
transformers and connector kits. Above ground
mounting hardware is included except 2 inch EMT
for the legs. Order baseplates, transformer
bases, and all other below ground items
separately.
Examples: 880A2A-2 is an FAA L-880 system. It
includes the PCU and tilt switches for voltage
operation. 880A2B-2-11 is an ICAO PAPI system.
It includes the EMT legs and it does not have
tilt switches.
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