Okay, so the air cannot fill in the "gap" instantly: it only moves at the speed of sound. How do you derive the speed of sound without recourse to...
Source is "Mine's Bigger" by David A. Kaplan. Pg. 168 "If the winds were light - if the boat was moving only a few knots - then it was possible...
I think you actually want toe out to improve differential thrust - this would move the thrust line from each motor further from the rotation axis...
The Maltese Falcon can tack without engine power in all but light winds. However I would note that having three masts might be an advantage: as...
A two part mast is always going to be heavier than an equivalent single piece, but structurally you can achieve much the same results. A lot of...
Rolling is primarily a function of hull shape and moment of inertia. A side ballast tank should slow down the roll response for two reasons: it...
Draw a line perpendicular to the forestay, through the clew of the sail, to the deck. A jib car in this location should not need adjusting as you...
Yes I'm saying it is a fraud, and so is that other one.
Great apart from the fact it's complete nonsense.
You cannot really change damping by changing the position of weight in the boat. Damping (i.e. energy dissipation) is a property of the...
Centre of Buoyancy is the centre of the overall submerged volume. This is necessarily directly in line with the Centre of Gravity when the boat is...
Increased moment of inertia means that a boat is slower to respond to a wave by pitching up, but also slower to stop pitching as the wave passes....
Do you want the overall trim to change between the 'light' and 'heavy' configuration? If not you need the CoG of the tanks to coincide with the...
Link? At full speed the sail on these yachts will always be close to the centreline, and that is also the situation when they presumably want a...
A firefly dinghy has pretty similar lines and they plane in the right conditions. Have you tried sticking the 5hp motor on it as is and seeing...
