No, I do not go on plane for three reasons one you can not see other boats, two rain hert two much and three it is two darn scary when you can not see.

As far as a good cheap GPS, a hand held one or I used a LMS 240 for three years until I sold my boat and updated, I think that you can find a good LMS 480 or the eqivelant Eagle on Ebay prity cheap.