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Thread: What GPS?
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Old 17th June 2002 | 14:52
  #20 (permalink)  
FlyingForFun

Why do it if it's not fun?
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Joined: Jul 2001
Posts: 4,782
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From: Bournemouth
Chuck,

You said: "GPS is our newest and most accurate and reliable navigation aid"

I agree, but with the emphasis on the word aid. The primary means of navigation for VFR flight is looking out the window. And, as I said earlier on the thread, just having a GPS turned on, even if you don't intend to use, can decrease situational awareness by reducing the (perceived) requirement to look at ground features out the window. GPS is not as detailed as any VFR chart that I've ever seen - in many cases, it can pinpoint your position precisely in the middle of a black screen with a one or two blue lines, which doesn't help very much.

The same can not be said of the use of VORs and NDBs as nav-aids. These require cross-references to a chart, and therefore require the pilot to maintain situational awareness. Which is why I prefer them.

I have flown with "GPS Pilots" (I use the phrase in quotes to mean "a pilot who flies the GPS", as opposed to pilots who use the GPS as an aid) who have been unable to identify large towns that they were overflying, because the town was not shown on the moving-map screen. I don't want to become a "GPS Pilot", but already, after just 10 hours of using a GPS, I've noticed myself going down that route, and I'm having to take active steps (like switching the GPS to a different mode) to prevent that from happening.

FFF
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PS - Evo, sorry to hijack your thread with a pros/cons of GPS argument - it wasn't intentional, honest!
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