THIS REALLY IS MY FINAL POST ON THIS THREAD
Wonderful opening you telling me to stick around to learn about VMG then an apoligy for being caustic.....did you read what you actually wrote before your apology???
Please go back and read slowly and carefully what I have written in this thread it was written in a plain unambiguous language.
VMG is an absolute. I would have thought that there can be no question argument or debate about that.
Did you not read as I have already previously explained that I was using the highway screen
on the Raymarine
plotter to display VMG and had set waypoints all around the course(s) that we had to sail.
The owner, at my instruction, pre programed the plotter with every turning mark that could be used for courses, and we chose the ones that were being used in the race
course for the day, as was required and added others as necessary .
We even pre programmed the start line and on at least one occasion we hit the line with one second to go at max boats speed. The owner thought I was over the line and said so at the time, it was that close...BUT we were not over early
I would say from memory that 60% of these waypoints were turning marks of the course, with a few intermediate waypoints to make my helming easier and so I could drive this cat to MAXIMUM VMG not even thinking about laylines until we had to tack to make a mark that was now on our (aft of our) beam and to windward on the other tack.............from memory we were tacking in around 120/130 degrees that being across the ground including leeway as displayed on the plotter mouse trail. BUT DON'T quote me on that OR attack that figure either this is just my perception as the Heineken was a fair number of weeks ago now. I cant even remember now what the app wind
angle I was sailing to was.
This was VMG to the (waypoint) mark as DISPLAYED on the Raymarine
plotter in HIGHWAY MODE and the plotter also gives a time to the mark .
At a guess 60/80% of these waypoints were direct to windward I can only think of six maybe seven that were not in five races.
For the round island race
we beat along the coast of St Martin
past Philpsburgh to the St Barth channel then tacked and then beat up to and around Tintamare a mark of the course in 25 gusting 35 knots app then a run down past Marigot then another beat along to the finish line and a turning mark in Simpson Bay that forced you to tack and beat again to the finish line deep in Simpson Bay.
Lots and lots of windward sailing.
As explained previously WE had real problems with riding turns as we were cross winching to the one powered winch
So we ONLY tacked when we had to, we made long long boards maxing VMG as much as possible as we knew every tack was a killer.
Of course the electric winch
packed up on one race running away with the switch stuck in the on position till we tripped the circuit breaker
We did not romp around the course at a constant 8 knots VMG all the time but at times frequently and regularly that was our VMG to a mark that was to windward.
I don't have the time motivation or the energy to go back and work out distance sailed and average boat speed doubly so as it has got nothing to do with a Lagoon 420
And as we had an OOO log speed transducer (you did read that previously?) I would need to look at the tracks on my HH GPS
and well this is just getting too silly for words...
Downwind the cat was a dog and I was reaching off as much as possible but killing the VMG as the cat would not catch a wave and surf for any decent length of time.
I have been sailing for over 60 years now, and raced Tornadoes and a Dart Cat. NONE of that is relevant to the facts as laid out here.
I hope that you now understand about my use of VMG. Not my wild guess but as calculated and displayed to me by Raymarine kit
This was how I sailed/raced this cat.......using the plotter to maximise our VMG to the next mark (waypoint) constantly as displayed on the Raymarine Plotter.
What all of this massive thread drift and highjacking has to do with the L420 not slamming is a mystery to me.