^ i was watching from Maraitai on sat early afternoon, there was a lot more separation between the 2 boats then what this video portrays.
hard to say who was fastest as they were all running different angles
they don't look like much with their sails down being towed around but as soon as they...
now I'm beginning to think I'm useful around here :lol: ... GD, I'm awaiting your private message to join the crew (happy to work from home but will expect to tag along in a chase boat at some point)
I can't do much with those as they are no-where near square on (I'm sure there is a way I...
that 7.76 degrees is the difference between hull level and my approx guess at the straight part of the foil arm ... nothing to do with overall heal (trying to find out if AM have their foil rotated at a different angle to 'fly lower, with increased RM')
im still doubting the 2 foil in the water theory.
simple force diagram ... if each foil is supporting approx half the weight of the yacht you have no righting moment, any breeze would lift the windward foil out of the water, you wouldn't be creating enough lift off one foil at that speed so you...
would be interesting to do the basic calcs for which boat foil is more loaded per m^2 of foil size
AC 50 = 2,332–2,432 kg
AC75 = 7,600 kg (16,800 lb) loaded
at a guess would you say the AC75 foil area is 3x that of the AC50?
so to gain maybe the 20% more lift they need you are suggesting doubling the drag in the water ... seems that could lead to slowing rapidly as they have less apparent wind and would drop into displacement mode
from what we have seen these boats can foil in 6knts of breeze, ill take a guess and...
I'm not disagreeing with you but curious as to how you think the mechanics of 2 foils in the water allow you to point further downwind ... I'm sure we would have seen this on an AC50 if it was helpful
same again for stability comment ... surely more weight away from the pivot point (as wide as...
I'm not suggesting that the LR boat has an adjustable length but the intersection stepped joint is similar
back in my uni days a couple of friends were looking at the aerodynamics on the above joint for wind turbines (adjustable lengths depending on the amount of wind)
as we all know on...
think you have nailed it here.
rounding the bottom gate with a boat infront/behind you. you want to put doubt in the other teams mindset ... are they tacking? do we need to cover etc etc
its the equivariant of the old school boats doing a fake tack
the Auckland mayor Phil Goff is putting forward international students to be allowed in Asap with a 14day lockdown in hostels because they bring in heaps of $ into the city... I wouldn't be surprised if the cup teams have a proposal in the works along the same lines.