TheoNav is a shareware Palm OS application that includes tools and calculators to aid in maritime navigation. Specifically, TheoNav includes tools for: Speed, Time and Distance calculations. Determining distance and heading between any two locations on Earth. Quick conversion between English, metric, statute and nautical units. Calculation of magnetic variation anywhere on the Earth. Curve-fitting for calculating magnetic compass deviation. Determining locations of U.S. cities and world ports. Vector addition of speed and heading when travelling through currents.
LicenseFree to try
File Size194.33 kB
Operating System Mobile
System Requirements
  • Palm