I had the chance to step into Gary website on celestial air navigation, my hat off, for the content and the clear explanation of the air
navigation approach to CN. While in marine navigation, the art of CN is, sometime and wrongly, considered obsolete, in air navigation we are already in the archeology area.
I have a collection of books and instruments on air navigation dating back to the 1917 and always been fascinated by air navigation including the celestial components.
Two years ago, I completed a 1,000 miles ferry of a Stearman from Sweden to Central Italy, my navigator relied exclusively on GPS for the ride, I did my log and always checked the GPS reading against my DR predictions and pilotage periodic verification of the actual position, the GPD did let us down few times, the best of then was during the crossing of the North Sea between Sweden and Germany, it is a peculiar moment when you don't see land on the 360 and the warning "no signal" comes about........
Well done Gary.
Paolo
Following is a pic of the Sweden-Germany crossing, with not auspicious clouds at
the sea horizon ( not forecasted by the Met guys as well)
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