Re: which gadgets?

ChrisR <Chris@xxxxxxxxxxxxxxxxxxxxx> wrote:

> "Ronald Raygun" <no.spam@xxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:SYoCf.10127$wl.6880@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
[]
> > As soon as a boat yaws it is immediately
> > moving in a different direction. OK, there will be some sideslip
> > due to its underwater lateral resistance not being infinite, but if
> > in a no tide no wind situation a boat has been pointing 070 (and
> > therefore moving in direction 070), and then suddenly yaws to 080,
> > it will take a while for it to settle on also moving in direction
> > 080, but the change of direction from 070 to 080 begins to happen
> > straight away.
> >
> > Of course it will take the GPS a bit longer to notice that the
> > COG has changed, especially if it does averaging.
> >
> Unlike a yawing compass it does know its track though

Where can I get a compass that shows me cross-track error?

Ok - so in a no wind, no tide situation, the GPS has it, but
otherwise...

Surely one trims well, notes the compass course (& GPS track) and steers
to the wind - when re-triming is required, one checks the compass (&
GPS) if required, according to the shift.

rgds, Alan
--
99 Ducati 748BP, 95 Ducati 600SS, 81 Guzzi Monza, 74 MV Agusta 350
"Ride to Work, Work to Ride" SI# 7.067 DoD#1930 PGP Key 0xBDED56C5
.

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