Yeah its pretty bad. However the point stands this issue will be worse as the board gets shorter. As mentioned previously the speeds (or more...
It was just an opinion which I have no proof of other than the following logical explanation. It seems fairly intuitive, but not everything is....
Why limit ourselves to comparing only daggers when valid comparisons exist elsewhere? You did that yourself when you posted videos of foils...
Its relevant. Many fast multihulls have surface piercing rudders and they seem to work fine even though they are expected to work at higher...
The design needs to work at the highest angles of attack likely to be experienced in normal use. Just because the average angle of attack is...
That's true, but rudders certainly have higher angles of attack as they are for steering. The boards angle of attack is the leeway angle. Its...
If its not a significant issue for them as a racing boat, the slower cruiser with a slower use requirement of a CB (upwind only), plus the fact it...
A few opinions. I have no idea on the angle needed to lie to a headwind. But presuming the boat will be drifting backwards slowly the loads...
Yet many fast multihulls have surface piercing rudders which are expected to work at both higher angles of attack AND speed compared to a centerboard?
This thread relates to cruising cats. Cruising cats spend much more time sailing downwind where the dagger case slot holes will create drag all...
I was just wondering as my last boat weighed 4 times that and used considerably less fuel at 7 knots. A 43' 20000lbs sailing cat (in my picture)....
Oldsailor, did you not see the posts where a poster actually built a very simple arrangement? It looks like it would have been cheaper and...
Nice boat! I wonder if it would use much less fuel at slower speeds with a much smaller engine?
Its also feasible to connect waterstays to the board itself as long as they terminate exactly at the athwartships plane of the pivot pin. This...
That solution looks much lighter, simpler, cheaper and easier to build than 2 boards plus cases and the extra interior room would be nice....
The point was it would also be structural spar.
If the wave pattern is different, it will effect the total difference in a catamaran form due to different interference. Have you tried it yet as...
I think for a cruising design like yours a single board would be better. I would only see asymmetric boards sensible in a high performance...
I think there should be nuclear powered commercial shipping.
I think the contribution to leeway prevention from the hulls is greater on a cat. The hulls are deeper compared to their beam and there are 2 of...
