for the record I'm not anti-GPS, but still find it rather too all encompassing to say that the "answer" is GPS! Users still bust airspace! Yes it probably is the fault of the user, but it's the growing reliance on GPS that is most worrying. Before much longer it feels like traditional ways of navigating will be dumped in favour of this perfect solution to our navigating woes. As the son of (and myself at various times) a professional fisherman, I can say that the introduction of GPS was a revelation when compared to the old decca system. However, GPS still occasionally loses itself during certain atmospheric conditions, rough seas or electrical circuitry problems. Ok, these are tiny things and most unlikely ... but they do happen. I even remember once (when airbourne GPS first came in I admit) hearing a pilot disputing that he was somewhere other than where he thought. he said something along the lines of "this GPS cost two thousand pounds ... it can't be wrong" to which the controller curtly replied "well this radar cost twenty million ... do you think it is wrong"?
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