Course and speed instead of DR positions

[zimolzak]

Per Hemphill on CBI navigation club forum, 2016-05-04:
I find it a little strange that you give dead reckoning positions for sights two and three. There are unstated assumptions about how those positions were calculated. I think that it would be more natural to just give a true course and speed for the problem. That is what the navigator would be working with, anyway.