Perhaps global warming by prop-equipped fish?
this has been done on 12-meter (former AC class) yachts as well, with some solutions dividing the rudder in more than two sections....
Now, this is funny, I have to participate, bear with me! ;) As a matter of fact, travelling wave propulsion has been used for many years, we...
it's a good thing that bearings weren't around when fish were invented... Imagine a fish with a prop shaft, we would never have learned about...
Did that fishing line survive? :)
Thanks Roly, much new stuff to read now... :) bye Hans
same here. During my years as a delivery skipper, I had the opportunity to get to know quite a few yacht owners. Most of them weren't in tune...
So 45 kgs it is. I have the old rules laying around somewhere, from the times it still was 30 kgs. 45 kgs from the masthead of a mast at a bit...
The rulemakers wanted to define a maximum endplate effect, which means that the effective aspect ratio of the mainsail cannot be increased by ever...
Hi Roly, could you please give a link to a web resource describing these props? bye Hans
yes, for another reason too: if you scrap the keel and mast in an effort to lighten everything, where's your waterline going to be? Right! So,...
I'm voip'ing two separate ways: the ADSL router in my office handles phone calls via the internet, the protocol is the one my ISP made available,...
Stephen, the flow field around the keel causes a downwash in the streamlines aft of the keel, ie. the flow will be a bit diverted to lee. For...
actually, for modern hulls (separate spade keel & rudders) you should design for some slight weather helm when sailing upwind. The reason for...
in the minitransat class (6.5 lwl/loa), there's a rather simple rule about stability: with the boat heeled at 90°, stability must be enough to be...
I've tried to set up an open source yacht design project, just as you suggested. Check out http://www.mini-650.de In my experience, a lot of...
Upwind sailing will improve with your proposal. You pay for it downwind, where the higher drag will be somewhat detrimental. bye Hans
if you round the chine, you remove displacement where it would have contributed to lateral stability, so I reckon you shouldn't remove anything....
Hi Christian, I suggest you go to the local library and get a book called: "The symmetry of sailing". The book's title might give you a clue,...
if you lengthen the boom and shorten the mast, to end up with the same mainsail area, the following happens: - the aspect ratio of your mainsail...