Thanks Guy. :-)

JayG,

Way back in the 60's I crewed on a 42 foot sailing sloop where we would race from N.Y. to Nantucket for a three day sail with a bunch of other sailing ships. The navigation was pretty simple but we did not have any fancy GPS or even Loran.  We used paper charts and a compass and a lot of dead reckoning.
It was great fun and we all took turns at the tiller. I loved using the spinnaker or the Genoa on a reach.  Rafting-up at night was, shall I say, a lot of fun! 

When I started flying the 707 in the late 60's we used Doppler and Loran and when the sea was calm as in the summer or there was a solar flare neither of these systems were of much use.  So here we were going almost 600 miles per hour and looking for other contrails to stay on course.  Now back then the spacing was 120 miles so it was not that big a deal.  When INS and GPS came along things tightened up.  Yes, those were the days!

Lou