My Nexus instrument system and Garmin chartplotter show me critical navigation data such as:
VMG - velocity made good wind based WCV - waypoint closure velocity STR - course to steer adjusted for current and leeway SOG - speed over ground COG - course over ground. SET - set DRF - drift BSP - boat speed through the water True and apparent wind However, I usually ignore all of those and monitor TIICB. TIICB is the most important reading on the boat. Oh, what is TIICB? Temperature in ice box. -- Dennis C. Touche' 35-1 #83 Mandeville, LA
