piisfish 140 #1 March 30, 2009 The Greenbird clocked 126.1 mph (202.9 km/h) powered only by wind... www.youtube.com/watch?v=iJLFQ-1nGz0&eurl=http%3A%2F%2Fwww%2Esailinganarchy%2Ecom%2Findex%5Fpage1%2Ephp&feature=player_embeddedscissors beat paper, paper beat rock, rock beat wingsuit - KarlM Quote Share this post Link to post Share on other sites
shropshire 0 #2 March 30, 2009 Outstanding (.)Y(.) Chivalry is not dead; it only sleeps for want of work to do. - Jerome K Jerome Quote Share this post Link to post Share on other sites
cocheese 0 #3 March 30, 2009 I think BillVon will be sticking a glider/sailplane in his sunroof after seeing this. Pretty awesome. Quote Share this post Link to post Share on other sites
futuredivot 0 #4 March 30, 2009 Quote powered only by wind... Brits gotta go wind, Lucas can't provide reliable electricYou are only as strong as the prey you devour Quote Share this post Link to post Share on other sites
turtlespeed 226 #5 March 30, 2009 Quote Quote powered only by wind... Brits gotta go wind, Lucas can't provide reliable electric I'd like to see some of the scientific data that allows them to go faster than the wind.I'm not usually into the whole 3-way thing, but you got me a little excited with that. - Skymama BTR #1 / OTB^5 Official #2 / Hellfish #408 / VSCR #108/Tortuga/Orfun Quote Share this post Link to post Share on other sites
MikeJD 0 #6 March 30, 2009 Quote The Greenbird clocked 126.1 mph (202.9 km/h) powered only by wind... I can beat that powered only by gravity. Quote Share this post Link to post Share on other sites
turtlespeed 226 #7 March 30, 2009 Quote Quote The Greenbird clocked 126.1 mph (202.9 km/h) powered only by wind... I can beat that powered only by gravity. Divot can't go slower than that . . . powered by gravity.I'm not usually into the whole 3-way thing, but you got me a little excited with that. - Skymama BTR #1 / OTB^5 Official #2 / Hellfish #408 / VSCR #108/Tortuga/Orfun Quote Share this post Link to post Share on other sites
cocheese 0 #8 March 30, 2009 Hell, we used skate across the lake while holding a garbage bag on a windy day and i think we went faster than the wind. A simple ice boat can double the wind speed. Quote Share this post Link to post Share on other sites
turtlespeed 226 #9 March 30, 2009 QuoteHell, we used skate across the lake while holding a garbage bag on a windy day and i think we went faster than the wind. A simple ice boat can double the wind speed. How? As you approach the speed of the wind that is pushing you wouldn't the bag deflate? If you go faster than the wind that is pushing you, wouldn't the bag invert and become drag?I'm not usually into the whole 3-way thing, but you got me a little excited with that. - Skymama BTR #1 / OTB^5 Official #2 / Hellfish #408 / VSCR #108/Tortuga/Orfun Quote Share this post Link to post Share on other sites
akjmpplt 0 #10 March 30, 2009 The wind isn't "pushing" you. The sail/wing generates lift. As you move forward the apparent wind increases and the apparent direction it is coming from moves forward. The apparent wind for his vehicle was over 126 mph.SmugMug Quote Share this post Link to post Share on other sites
shropshire 0 #11 March 30, 2009 Beat me to it (.)Y(.) Chivalry is not dead; it only sleeps for want of work to do. - Jerome K Jerome Quote Share this post Link to post Share on other sites
JohanW 0 #12 March 30, 2009 A sail is a wing. That means the lift it produces is not in the direction of the wind, but at an angle to it. Then the wing is producing lift from the relative wind instead of the absolute wind, which you get more and more of, and you can go a hell of a lot faster than the absolute wind speed as long as you're not trying to move directly into the relative wind. Ever wonder how sailing ships can move into the wind? At greater speeds than while moving with the wind? With the wind, they get pushed by drag. Into the wind, they get pulled by lift.Johan. I am. I think. Quote Share this post Link to post Share on other sites
JohanW 0 #13 March 30, 2009 I see I got beat as well. And had the English jargon wrong - relative wind instead of apparent wind. At least I learned something. Johan. I am. I think. Quote Share this post Link to post Share on other sites
DJL 235 #14 March 30, 2009 QuoteHell, we used skate across the lake while holding a garbage bag on a windy day and i think we went faster than the wind. A simple ice boat can double the wind speed. You're talking about going downwind with your trash bag and you can't go faster than the wind. An iceboat can reach speeds up to 10 times faster than the wind although that can't be scaled into 20mph winds equaling 200mph of speed since you run into serveral different constraints."I encourage all awesome dangerous behavior." - Jeffro Fincher Quote Share this post Link to post Share on other sites
JohnMitchell 16 #15 March 30, 2009 Did the Greenbird have to turn around and make a speed run the other direction to have a record? That's the requirement with other speed records. What were the ground winds that day? Looks like gusting to 35+. Just curious what multiple of wind speed they achieved. Quote Share this post Link to post Share on other sites
