PatronDeYate app for iPhone and iPad

This app is meant for users that want to:
- Calculate effective vessel speed with given current speed and current course and vessel speed / course parameters,
- Calculate initial bearing, final bearing and distance between two given coordinates,
- Calculate the effective course (Ref) and Effective speed (Vef) for given speed(Vb), real course (Rv/Rs), current strength (Ihc) and current course(Rc).
- Calculate effective speed(Vef) and Real course when navigating at speed (Vb), effective course (Ref) with current strength(Ihc) and course (Rc).