Peter S/Y Anicula wrote:

Now you confuse me, isen't that what I said in the first place?

Yes. I had read yours as an addition (big arc = small arc + 180), but
somehow thought it was the wrong addition. I then realised that it was a
subtraction (big arc - small arc = 180), which it was what you had said, but
in a different way.


...which gives a distance of 35.11nm from the start to the finish.

So that would be around 210 nautical miles in my boat, assuming it
would keep a speed of 6 knot even with skies mounted under it - that
is well over 168 nm, and all that without any help from current.

If the legs were 14x6=84nm, there would be a factor involving the diameter
of the inner circle, which would increase to maintan the big-small=180
relationship between degrees covered on each arc. I think that means it
would be greater than 210.


Good work Wally! I will top Barts 5 points with a couple of
Anicula-points.

A good haul, considering I don't think I answered the original question...


--
Wally
www.artbywally.com
www.wally.myby.co.uk