Yacht navigation

Modular software system for PSION palm top computers
for Series 3 and 5
NMEA 0183 interface software.

NAVCOMP - cruising and racing in North European tidal waters with passage optimization and reverse planning. Data file of named waypoints with index. Route index. Other functions include predicted hourly positions with graphic plot of groundtrack, instant corrected course to steer and distance to sail. Wind-oriented tacking.

astroNAVCOMP - celestial navigation and long distance passage planning. Easy to use system for sight reduction of sextant sights to position fixes without reference to tables and almanacs, which are integral for sun, moon, stars, and planets. Star and planet finder and identifier. Passage planning in Great Circle and Rhumb line. Data file of named waypoints with index.

grafTIDE - Curves of height of tide against time of day for rapid visual inspection for any day and any port from a user-maintained Port library. Calibration in metres and hours with movable curser and user=set Clearance line. Numeric results available for greater accuracy. Also 30 day curves of high and low waters for planning

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INTECMA associates