Heliport Approach Azimuth - SAGA (System of Azimuth Guidance for Approach) System ,combined signal of approach azimuth guidance and threshold identification
Heliport Approach Azimuth - SAGA (System of Azimuth Guidance for Approach) System
Combined signal of approach azimuth guidance and threshold identification, coupled with a PAPI system , the SAGA system provides the pilot with the safty and the comfort of an “Optical ILS".
The SAGA system includes two light units (one Master and one Slave) placed symmetrically on both sides of the Runway (or TLOF) threshold supplying unidirectionalrotating beams which give a flashing effect.
• When the aircraft flies inside a 9° width angular sector centred on the approach axis, the pilot sees the two lights flashing simul.
• When the aircraft flies inside a 30° width angular sector, centred on the approach axis and outside the previous one, the pilot sees the two lights“flashing” with a variable delay (60 to 330 ms) according to the position of the aircraft in the sector.
• The further the aircraft is from the axis, the greater the delay. The delay between the two “flashes” produces a sequence effect which shows the direction of the axis- the visual signal is not visible when the aircraft flies outside the 30° angular sector.
More details
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