Navtech Software - Android Applications by Navtech Software
Dutchman's Log is a utility to measure your sailing yacht or any boat's speed over the water. Can also be used to calibrate or to check accuracy of your speed/log device. A boat's speed may be estimated by timing how long the boat takes to pass a floating
$2.35iStreams displays the valid hourly Channel Islands tidal stream atlas for the current UT time , in reference to the current UT time of high water at Dover... a smart app, fully functional offline.The nearest Dover HW time (UT) from the actual time (UT)...
$6.99