[quote=mrdrew;11355]Forever hopeful?! haha I suppose it’s just one of the things the rumor mills keeps going and going. But with your guys’ help here today, the INTERNET may put an end to the rumor. I haven’t taken cnav yet, but I can say so far, I’m a big fan and really looking forward to the class Spring 2011. You’ll have to ask me again after the course if I’m still a “big fan.”
I really liked the post about there only being two techniques of deep ocean navigation: cnav and GPS. Seems crazy to be totally relied upon GPS. Might put yourself out of a job real fast should GPS kick the bucket.
Thanks for all the thoughtful replies.
Well I hope that you enjoy it. Most people don’t like the tabular look ups that are required to pass the USCG exam. In reality at sea, on the big ships, you are using a calculator or computer to do the math so all you need to remember is your shooting and plotting skills. The tabular look ups (and there are several versions of them) as well as slide rules (which you probably won’t see) are available in extreme cases. This is really only useful for sailboats as any such problem on a merchant ship will render it immobile so using celenav won’t matter much.
In the interest of full disclosure, there are indeed other methods of deep sea navigation, but most of them have been turned off (RDF, OMEGA) or are not available on merchant ships (inertial navigation.) I general, you will only see GPS on ships you may sail on. The Europeans are supposed to launch their own “GPS” type system but it has been long delayed.