Originally Posted by Chimbatete
That is a very interesting comparative between the Daysailer and the Malango. Not expected and not so good for the proponents of more beamy modern hulls. Id like to know more details.
Is it fair to say that in light winds, the more classic narrow hulls like an e33 daysailer (love the boat) would beat the pogo 10.50 or First 30 upwind? and even downwind??
Remember I'm new to this asking these weird questions.
Reality is what it is and each kind of hull has advantages, and one of them is interior space. For cruising a hull as narrow as the one from daydream would have very little interior space.
Regarding speed with light wind, a narrow boat, assuming equal displacement and similar keel will need less power to sail at the same same speed, comparing with a beamier boat.
The beamier boat compensates this superior need of power with a superior righting moment given by its much superior form stability (the necessary bigger B/D of the narrow boat is normally not enough to compensate that) and with enough wind the extra power and extra sail can compensate that superior need.
But in light wind sometimes the bigger sails just cannot generate the extra power to match the lesser needs of the narrow boat and that's what has happened on that boat test.
Regarding boat design it is very difficult, for the same length, to have a narrow cruiser with the same displacement that have a beamy cruiser, like the ones that have its form derived from open boats. The Open type boat has a lot of stability coming from form stability while the narrower boat has to compensate the diference with more ballast... and lead is heavy
Compare for instance the 1.9T of ballast of a Pogo 12.50 with the 3.3T of ballast that has a First 40. Obviously the Pogo is a lighter boat but that does not mean that it will be always faster. Note that the Pogo has, among that type of boats, a big B/D ratio.
Each boat design is a different compromise between many things, from rocker, prismatic coefficient to hull stability passing for B/D, weight and many more variables. Even when performance is what matters, different variables give boats that are better under some conditions or some sail points and worse in others.
There is no doubt that Open class type boats are better solo downwind because they give the extra stability that makes them more easily exploited solo while giving the extra power to compensate their big prismatic coefficient that gives more drag to the boat.
It is not by accident that if you compare a Open 40, the best type to sail upwind solo, with the fastest type of boats to sail offshore in mixed conditions, like the Ker 40, the Soto 40 or the Farr 400, you will find that while these share many similarities between them, they are all very different from the Open boat or a Class 40 (Pogo) in what regards beam and B/D ratio.
The Ker and company are in those mixed conditions much faster than a class 40, but also more difficult to sail, specially downwind.
There is no easy answer or perfect performance cruiser and each one has its particular blend of strong and weaker points, more or less adapted to solo sailing, more or less fast upwind or downwind, passing better waves or pounding more and normally what makes one thing better makes other worse.
For instance, on that last race that I was talking about an Azuree 40, a performance cruiser I have posted about on this thread, a boat that shares many characteristics with the Pogo 12.50, lost about 17 hours for the fastest j 122 ( one that was really fast since he won in compensated
) and 5 hours to an older First 40.7 (that is slower than the "new First" 40), both more traditional performance cruisers. If this race was instead of a race with variable winds, a Transat, with most of the time with downwind sailing, I think the results would be the opposite.
The choice is for each sailor, and the boat I would chose would not be the boat another sailor would chose. This thread is not about a particular type of boat but about all types of good sailboats and about the knowledge needed for choosing the one that fits each particular sailor.