OnboardIntelligence.com

Onboard Marine Software

Rhumb Line/Great Circle

Celestial Navigation

Free online software utilities for marine officers and yachtsmen

News

The celestial navigation software ASNAv is now free to download

Links

Welcome to OnboardIntelligence.com

Providing online software utilities and information for the seafaring community:

Single rhumb line, great circle and composite great circle calculations on an ellipsoid (e.g. WGS-84) and not only on a sphere
An introduction to the celestial navigation theory
Download some free utilities
Reflection on ECDIS
Homage to The Wave