Collision avoid­ance with chart­plot­ters

Yachting Monthly - - LETTERS -

Craig Hardy’s ar­ti­cle ‘Keep­ing a look­out us­ing elec­tronic nav­i­ga­tion aids’ [YM, June 2018] on the value of elec­tronic nav­i­ga­tion de­vices to avoid reefs and ground­ing was use­ful. But his so­lu­tions only ap­ply to boats with wheel steer­ing.

Last sum­mer, com­ing back from France in my 10m yacht, I had an un­pleas­ant night­time en­counter some­where be­tween Port­land and Poole with a slow-mov­ing tug. My boat has a good-qual­ity chart­plot­ter and an AIS re­ceiver but my boat is tiller steered, and both those in­stru­ments are down be­low. I could see that try­ing to cor­re­late the AIS data and the lights was dif­fi­cult and in­volved lots of trips up and down. It wasn’t helped by the AIS on my chart­plot­ter, which isn’t clearly ranged.

My so­lu­tion has been to buy, for less than £400, a com­bined-colour AIS B and GPS and mount it in my cock­pit. I also have charts on my ipad. The ipad’s bat­tery life isn’t that good so I’ve had an ex­tra 12V socket fit­ted in the cock­pit as well to keep that up and run­ning. The new GPS is much bet­ter than the rather crude re­peater I have run­ning from the chart­plot­ter.

The AIS/GPS is also de­tach­able and I’ve had power ca­bles made so I can pro­gramme it down be­low or even at home. I am hoping that this com­bi­na­tion will keep me well away from slow-mov­ing tugs and shal­lows.

Paul Kelly

A colour-com­bined AIS B an GPS in the cock­pit has made nav­i­ga­tion eas­ier for Paul

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.