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[32511]
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Vestas Sailrocket has done it again- 65.37 knots average over the 500m course; max speed 67.74 knots, set today.
Wow!
http://www.sailrocket.com/
Wow!
http://www.sailrocket.com/
Sailing record now 65.37 knots!
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Hoolie
Well-Known Member
Tomahawk
Well-Known Member
Does it sail on the other tack?
AndrewB
Well-Known Member
Starboard tack only. So it's a 65kt blast one way, a 2kt paddle back. Or maybe they should just keep going. At that speed they'd get right round in under a fortnight.
Tomahawk
Well-Known Member
You have to admire it.. 65Kts is impressive and I am sure they will make it go faster.. But on only one tack and pointing at a beach you won't get too far on a round the world attempt!
About now Hydroptere is makeing an attempt at a cross ocean record from LA to Hawawai in under 4 days... Mile after mile after mile at 40 Kts.... Just hope they don't bump into any Vendee boats
About now Hydroptere is makeing an attempt at a cross ocean record from LA to Hawawai in under 4 days... Mile after mile after mile at 40 Kts.... Just hope they don't bump into any Vendee boats
SHUG
Well-Known Member
I think its fantastic.
The forty knot barrier, the fifty knot barrier, the sixty knot barrier...is there a 70knot barrier to be broken in the near future?
The forty knot barrier, the fifty knot barrier, the sixty knot barrier...is there a 70knot barrier to be broken in the near future?
[70521]
Well-Known Member
I can see they will go far!tobermoryphil said:
savageseadog
Well-Known Member
Who needs a powerboat?
Jamesuk
Well-Known Member
It must be so annoying not hitting 70
MASH
N/A
Bring on the Ton!
How long will it take?
Anyone care to record their predictions so we can have a laugh in years to come at how far adrift we all were?
I'll kick it off... First 100mph under sail?
Impossible. Won't happen
How long will it take?
Anyone care to record their predictions so we can have a laugh in years to come at how far adrift we all were?
I'll kick it off... First 100mph under sail?
Impossible. Won't happen
AndrewB
Well-Known Member
Been and gone, Mash. Highest speed by an ice yacht is claimed as 143mph back in 1938.Bring on the Ton!
How long will it take?
Anyone care to record their predictions so we can have a laugh in years to come at how far adrift we all were?
I'll kick it off... First 100mph under sail?
Impossible. Won't happen
Actually that is unverified and considered unlikely. The highest confirmed speed record under sail is held by a land yacht, 126 mph set by a Brit, Richard Jenkins in Greenbird on March 26th 2009.
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MASH
N/A
I'm not entirely convinced that it has done it "again" when the whole point of the headline is that it has just done it for the first time - but why let facts get in the way of a good story ?
Tomahawk
Well-Known Member
reading the Speed Rocket site
The technical issue is dealing with cavitation whe you reach 50kts... Seems the water starts to turn into gas and the foil looses grip whilst drag in increased at the same time...
They describe it as the water equivalent of the sound barrier where increasing power is needed for little extra speed until you break through the barrier... It is made complicated by the fact that the foil is both in and out the water...
The achievement is to shape the foil so it doesn't cavitate. Looking at Speedrocket the foils have some sort of shape just above the water surface.. That may be part of the secret?
The technical issue is dealing with cavitation whe you reach 50kts... Seems the water starts to turn into gas and the foil looses grip whilst drag in increased at the same time...
They describe it as the water equivalent of the sound barrier where increasing power is needed for little extra speed until you break through the barrier... It is made complicated by the fact that the foil is both in and out the water...
The achievement is to shape the foil so it doesn't cavitate. Looking at Speedrocket the foils have some sort of shape just above the water surface.. That may be part of the secret?
