a device similar to a VASI (visual approach slope indicator) used for fixed-wing aircraft
Good to know
The helicopter gets a steady green indication when it is on the desired glide-slope. The indication is flashing green when it is above the glide-slope, and a steady red when it is below it. This changes into flashing red if the helicopter is well below the desired glide-slope.
Good to know
Valdkond ICAO lisade põhjal loodud klassifikaatori järgi: Lennuliikluse korraldamine; Lennuväljad ja kopteriväljakud
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