Author Topic: Philly Tower Yesterday...  (Read 7031 times)

Offline AirportMan

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Philly Tower Yesterday...
« on: October 27, 2014, 05:23:22 PM »
I initially couldn't believe what I was hearing.  After I went back and listened a couple times, I cant help but feel for the pilot, and kudos to the tower controller for keeping his cool and staying professional.  Edited the clip down a bit.
« Last Edit: October 27, 2014, 05:32:46 PM by AirportMan »

Offline None.

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Re: Philly Tower Yesterday...
« Reply #1 on: October 27, 2014, 06:00:43 PM »
I cant help but feel for the pilot
Eh... yes and no. Mostly no.

Obviously I wasn't in the cockpit and don't know what the HSI was showing, but given the other tools available (magnetic compass, runway signs, runway markings on pavement), it seems difficult for someone with a PPL or more to be unable to determine the runway direction not once but twice.

Would I trust and expect safe operations near this pilot when it comes to topics like traffic pattern directions, right-of-way, standard hold directions, etc.? Yes and no. Mostly no.

Offline martyj19

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Re: Philly Tower Yesterday...
« Reply #2 on: October 27, 2014, 09:51:49 PM »
Unlike the directional gyro found in trainers and smaller aircraft, the horizontal situation indicator is (almost universally) internally slaved to a compass so it will not precess and does not need to be adjusted as part of the runup and unless malfunctioning will not be incorrect.  It should be checked sometime during the taxi and when taking the runway to make sure it indicates runway heading, as should the directional gyro.  When taking the runway a mismatch ordinarily is the clue that you are on the wrong runway.

In case anyone else is confused, both DGs and HSIs are set up so that if you are supposed to turn to a heading, you find the heading on the face of the instrument and turn in that direction.  The number of degrees that you need to turn can be read directly off the instrument.