The demonstration by the Jagaur pilot on how ineffective map, compass and stopwatch night target finding could be was excellent. Really brought it home how hard (impossible) accurate bombing was using these methods.. .. .OBOE was the first decent nav aid the RAF had. No good for Berlin / East German targets though due to the curvature of the earth. Did give the Krups works a good pasting though. Strange how my dad still had to go back to visit it in '44 and '45 though <img border="0" title="" alt="[Big Grin]" src="biggrin.gif" /> . .. .Overall a good prog but they didn't mention how quickly and effectively the Germans jammed it. This gave rise to the GEE and H2S systems which were not dependant on ground stations.. .. .I could also have done without the cr@ppy moody shots of the inventors eyes with accompanying cr@ppy music every 10 minutes too. <img border="0" title="" alt="[Mad]" src="mad.gif" /> . .. .They also forgot to mention that the Germans used a very similar system called Knickenbein (Spelling). We jammed that as effectively as the Germans jammed OBOE.