Daggerboard position: Maneuverability VS. Acceleration

[CarlosK2]

What Eric Hiscock did with Wanderer I ...

put a bowsprit on the bow

We move the Mast forward and, loading the lateral force of the wind on the leeward wave, we hide Mr. Munk under the rug.

Later sailing with big Waves ... the bow sinks, Mr. Munk goes crazy, gets very angry, and capsizes the sailboat.

 

[CarlosK2]

In most cases the yacht does not capsize, because the waves are not huge, but the autopilot burns out or the sailor has a bad time instead of enjoying the waves and the functional beauty of a well-designed device.

 

[CarlosK2]

With an extremely powerful sailboat that carries about 40 (!) square meters per Ton in its basic configuration (StaySail + MainSail) ...

with so much force there is speed for the hull to create Lift based on High pressure and fly with the bow out of the water

Yes, but not all sailors go to high competitions, the majority of mortals sail with 10 square meters per Ton.

 

[CarlosK2]

(Center of Flotation)

A very simple solution would be to move the centre of flotation forward with a wider, spoon-shaped bow and a slender stern

Good downwind behaviour is a sum of

good longitudinal hydrostatic balance

stable balance of lateral pressures, that is: the sum of the lateral forces of the hull, centreboard/keel and rudder must be aft of the yacht's centre of gravity

good attitude of the hull, either with high vertical pressure at the bow, or with low pressure, suction, at the stern or with a sum of high and low pressures

 

[NirvanaManana]

Induced drag Di is proportional to squared lift of each board
total lift L :
one board, Di=kL²
two identical boards providing half of the total lift each, Di'=k(L/2)²+k(L/2)²=kL²/2=Di/2

Many thanks for the concise reply.

 

[CT249]

View attachment 196788

This model, for example, glided like a magic carpet flying over large waves and reaching a top speed of 20 knots, a clear sign that it dissipated the powerful forces of the Sea and the Earth in a good way.

Luckily, the navigator was an old retired sailor known for his precision, so the data from the experiment are good.

Twenty knots? On that boat? Where is this data?

Where, also, is the evidence "the wind force by its leverage arm" resulted in the sinking of the Valkyrie, and since Satanita was nothing like the modern boats you dislike where is the evidence that it is relevant?

Why do you say the "problem" occurred in 1880-90?