legoboyvdlp wrote in Thu Aug 03, 2017 10:06 am:I see. So basically dead reckoning? How would they compute speed, incidentally?
Mind you, it sounds dreadfully imprecise, but I suppose sufficient :)
From observing the drift angle and speed - as long as ground is in sight it is fairly accurate (and flight is usually low level so being over a cloud cover would be unusual). It had an airspeed indicator too of course, but that doesn't really help navigation if you don't know the wind.
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On some more adventurous flights, such as the positioning flight of N.1 Norge from Rome to Svalbard for the cross polar flight in 1926 the leg from Oslo, Norway to Gatchina, Soviet Union crossed Sweden and the Baltic Sea from west to east in fog and cloud without external navigational input - but then they did end up on the wrong side of the Gulf of Finland and had to read railway station signs to re-establish their location...
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