A special NAV Canada Boeing 737 airplane is in Yellowknife testing runway and landing signalling equipment at the airport.
Mike Bryant/NNSL photo
NAV Canada's flight inspection plane was in Yellowknife on Wednesday for routine maintenance of navigational aids to ensure they are functional and accurate, said Ron Singer, national manager for NAV Canada.
The company tests navigational aides every six months to ensure the instrument landing system is accurate to the centimetre.
The plane flies overhead but doesn't engage landing gear as it tests whether the navigational aids are giving correct signals.
The aides send signals to a pilot on board with the lateral, horizontal and vertical positions to assist planes in conditions where the runway is obscured, whether by fog or cloud.
SA国际影视传媒淭hat has to be accurate,SA国际影视传媒� said Singer. SA国际影视传媒淵ou don't want to be off by a couple of feet.SA国际影视传媒�
SA国际影视传媒淚t's what we do for safe operations. It's routine but very, very important,SA国际影视传媒� said Singer.
