Australians Andrew McDougall and Rohan Veal test sailing the Bladerider prototype in 6-12 knots of wind. For more information visit www.bladerider.com.au.
im betting that was a lake test? no way you could get that flat calm at sea. it does look quite steady but im guessing it has a lot o weather helm? and how is the rigging set up?
As a liveaboard on a full-keel displacement sailboat (38' Hans Christian), I've never understood how a multihull (or, in this case, a Bladerider) can move FASTER than the wind. My boat sure as heck won't! Can anybody explain the concept behind this? Thanks!
Hi Guys another note. It all has to do with true wind and apparent wind. Then after that its the resistance of the hull and spars. So thats where the blade runner wins. I am also living on a monohull and love it
When you squeeze a watermelon seed between your thumb and your finger the seed moves much quicker than the tips of either your thumb or your finger. Simplistic and not very truly accurate at all, but the principle is similar.
Also consider places like Chigago where the wind enters the urban area at some velocity, then because of the height and orientation of the downtown buildings the wind can end up moving much faster down urban canyons than when it entered. So if the wind interacting with objects can accelerate the wind to faster than the average, why couldn't the wind accelerate objects harnessing the wind to speeds greater than the average wind speed?
so would the watermelon be like the water, and the thumb be like the wind, and the seed would be the boat? and it would squeeze the boat forward? Oh ok i get it, that's very cool
I was picturing the finger being the water and the seed without from the melon, but sure, that works too. The seed, or boat, is squeezed relatively between two force vectors and moved in the forward direction. The keel and rudder are just an underwater wings pointing down, while the sail is a wing pointing up. Wind and forward motion, along with gravity, create the "squeeze".
Are you ready to move on to how a the bird known as the albatross can fly upwind without flapping its wings? Ha ha.
Oh yeah, an added force in the Moth case is it has horizontal wings, or foils, underwater, so the forward motion causes the hull to lift out of the water in the same way an airplane lifts higher. So the "squeeze" energy isn't just enough to go faster than the wind, but also to lift up the weight of the boat and crew. Check out the Hydroptere vids on youtube for more hydrofoil action.
well i was thinking that the fact that the boat does not move laterally in the water due to the keel and the rudder causes the squeeze as the wind pushes against the sail.
how can an albatross do that? hot thermal currents?
hat to burst ur bubble, but the apparent means they cant sail into the wind. They have awful pointing. Thats why they are healed to winward upwind, so the foils pull them to windward.
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moth :1……………..dinghy :0
im betting that was a lake test? no way you could get that flat calm at sea. it does look quite steady but im guessing it has a lot o weather helm? and how is the rigging set up?
Of course you can have those condition at sea. Like in a protected bay or a fjord.
This was probs shot at sea in 10kt wind. Remember that these boats only need 5kts to fly
Video was shot in Australia, Port Phillips Bay. Not many lakes down-under…
my point exactly
what you on about fuel?
this doesnt use any fuel its just hydrofoil technology idiots!
this is awesome i feel tempted to get me one of this. good choice of song to go along with this video
I wonder if its faster than 49er?
As a liveaboard on a full-keel displacement sailboat (38' Hans Christian), I've never understood how a multihull (or, in this case, a Bladerider) can move FASTER than the wind. My boat sure as heck won't! Can anybody explain the concept behind this? Thanks!
Nice rig! Wanna race my Rave? See my foiler video.. if you're ever on the east coast – would love to trade boats sometime.
Tool & sailing. the 2 best things in life 🙂
Hi Guys another note. It all has to do with true wind and apparent wind. Then after that its the resistance of the hull and spars. So thats where the blade runner wins. I am also living on a monohull and love it
When you squeeze a watermelon seed between your thumb and your finger the seed moves much quicker than the tips of either your thumb or your finger. Simplistic and not very truly accurate at all, but the principle is similar.
Also consider places like Chigago where the wind enters the urban area at some velocity, then because of the height and orientation of the downtown buildings the wind can end up moving much faster down urban canyons than when it entered. So if the wind interacting with objects can accelerate the wind to faster than the average, why couldn't the wind accelerate objects harnessing the wind to speeds greater than the average wind speed?
yeah, i don't get how any of that would work
so would the watermelon be like the water, and the thumb be like the wind, and the seed would be the boat? and it would squeeze the boat forward? Oh ok i get it, that's very cool
I was picturing the finger being the water and the seed without from the melon, but sure, that works too. The seed, or boat, is squeezed relatively between two force vectors and moved in the forward direction. The keel and rudder are just an underwater wings pointing down, while the sail is a wing pointing up. Wind and forward motion, along with gravity, create the "squeeze".
Are you ready to move on to how a the bird known as the albatross can fly upwind without flapping its wings? Ha ha.
Oh yeah, an added force in the Moth case is it has horizontal wings, or foils, underwater, so the forward motion causes the hull to lift out of the water in the same way an airplane lifts higher. So the "squeeze" energy isn't just enough to go faster than the wind, but also to lift up the weight of the boat and crew. Check out the Hydroptere vids on youtube for more hydrofoil action.
well i was thinking that the fact that the boat does not move laterally in the water due to the keel and the rudder causes the squeeze as the wind pushes against the sail.
how can an albatross do that? hot thermal currents?
i understand the hydrofoil thing, i just didn't get how you can sail faster than the wind, but now i do
VERY FASTER & FUN….WWOOAUUU
though interesting and i understand what you are saying. This doesn't quite answer my question, but I think i figured it out. Thanks.
do kasail make sails for mid range yachts
that thing is awsome
a competitive moth thesedays costs upwards of 30g aus
HAHAHA OMG THIS IS EDGARTOWN! MArthas Vineyard! I sailed here this summer at the edgartown junior regatta HA!
are they harder than hobies to sail
I want to see how you tack, and how well it points to the wind.
double the wind speed or greater, nice efficiency.
SkipperCharles; Cool, good to know, thanks.
waaaaaaaaaaaaaaay harder. they cant balance without speed.
hat to burst ur bubble, but the apparent means they cant sail into the wind. They have awful pointing. Thats why they are healed to winward upwind, so the foils pull them to windward.
Does anybody know what is the sail area to leingt ratio?
that's f=cking insane man