Sailing at 126 mph - Greenbird
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- Опубликовано: 31 мар 2009
- yachtpals.com - A British man, Richard Jenkins, has broken the world land speed record on the wind powered vehicle Ecotricity Greenbird, reaching the amazing speed of 126.1 mph, becoming the fastest person and vehicle of any kind under sail.
Read the full article about Greenbird here: yachtpals.com/sailing-record-4121 
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A spectacular achievement! How on earth could you "dislike" this video!?
Richard Jenkins : You MUST take up the offer from Popi133. Your machine on ice would be just awesome. 160mph could be on the cards.
Brilliant effort and thanks for posting. 5 stars all the way.
Thank you for not putting obnoxious heavy metal music over this! Great run.
Nice. That's 11mph faster than the top speed of my '97 1.6 Golf!
You need a faster Golf, mate
John Q
True. I need another car altogether, this one's getting rusty!
Wow, that moving on. Personally I'd want more gear on in case things got bad. Well done and congratulations on the record.
The vertical tail attached to the wing played a vital role in keeping its leading edge angled into the wind.
Jenkins' record now broken by Team NZ at 225.58 KPH (140.168 MPH), on an Australian dry lake- Both impressive records in their own way. Very similar looking yachts as well.
Awesome, words fail to appreciate your achievement.
@fosterpatron
Forget what Oogly50 said. This vehicle was not going the same direction as the wind, but perpendicular to it which is called a beam reach. On this point of sail, the wind speed relative to the vehicle is always the same and will constantly push the vehicle faster regardless of the vehicle's speed.
This one will fly during typhoon season in the tropical countries! Great video!
Wow. My dad and I took out his Blokart on NYE out to Ivanpah, my parents live in Vegas. I had no idea that something so amazing happened there 2 years ago. Amazing.
What a fantastic achievement! Well done all concerned
put skates on it. try it on a frozen fjord.
Most impressive!!! Congratulations!
Amazing! 126 on wind power alone.. Wow!
This is an amazing achievement. I hope Mr Jenkins and team will go on to apply their designs to everyday human transport vehicles and to large ships that are some of the worst polluters on the planet.
Keep up the great work!
@Fruted1 i think it works in a similair principle as an aeroplane wing. usually the shape of a plane wing creates upwards lift or thrust.i'm guessing the wind catches the sail/wing? and works the same way.i think
Also a great credit to the inventor of the wing mast; George Patterson
@Fruted1 Fruted1 is right, and the high aspect ratio actually gives it quite a big surface area. It's exactly like a glider's wing, but you gain drive like a boat or windsurfer or even a kite does, by your sail/wing's angle across the wind.
it is called laminar airflow, when you get flow of air on both sides of the sail there is a push and pull force that can accelerate you faster than the speed of the wind.
On keelboat, sailing dinghy, catamaran, windsurfer or kite board, they have a keel that resists lateral leeway and in combination with a rudder, a boat is prevented from heading up into the wind and stalling (which it always wants to do if sails are up). As more power is harnessed from the wind the boat travels faster, within limits of friction. It's the same principle with this wheeled vehicle, except that its wheels resist lateral movement. This vehicle is sails only across the wind.
What was the wind speed? Very impressive results - congrats.
My boat on a broad reach surfed over ripply water flat out at just over 5.5 knots on a force five gust. Is this a record?
NO!
How does it perform in stop and go traffic though?
that would be surreal in the cockpit!
Think of when you have been in a car on the freeway with the window open. You can feel the wind blowing very strongly from straight in front of you. That is because the car is moving through the air causing it to hit your hand. The same thing happens here. As the car moves through the air it creates more airflow over its sail which has the same effect as adding more wind. This is called apparent wind and it allows land yachts (and some boats) to travel faster than the wind is blowing.
Is the trim tab controllable from the cockpit, or is it set between runs and left there, since there's only one AOA targeted, and only the steering task is left to be done? Is the wing controllable directly in addition to the tab?
Great job, sailor.
my favorite video in the whole wide world.i have made a wind sail bike fixed wing
omg wind power omg the best way to go.
What direction is the wind to his direction of travel?
Great job!! Whats next?
how come the odometer on my Hyundai Elantra goes up to 140 mph?
Amazing accomplishment!
From a design perspective, why not put the outrigger on the down-wind side of the craft to counter-act the heeling moment from the wing? Would doing so introduce steering or stability issues at speed?
The wing connecting to the outrigger creates downforce, similar to F-1, so creates its own righting moment.
listen my local beach can be dead smooth when I sail up wind at 35mph
but when i turn round and hack back on a deep reach at 60mph its like sailing on cobbles. so just take it from me Richard did amazing .
in the 1970s we sailed reverable wing land yacht on raf upwood airfield it was very fast but hard to ccontroll the main pilot was les damsell from gloustershire i have an old black and white photo of the craft
They sail across the wind. The angle of the wing and direction of the vehicle with respect to the wind multiplies the speed of the craft. It's kind of the same idea of "auto-rotation" in a helicopter. The speed of the prop goes way, way beyond the speed of the helicopter's descent. The blade is moving across the wind at a shallow angle, multiplying the speed of the prop through the wind.
Imagine what youll know tomorrow ! Awesome
so beautiful...
in fact they're so fast it's always upwind sailing even if it's a downind ride ;)
BRILLIANT ACHIEVEMENT
A frame the rear wheel and counter torque it to the outrigger aileron...
Richard Jenkins,
How exactly is the craft steered. Does the wing do all the steering or does the front wheel have any capability for steering input?
+DIDGES IDOO I imagine both. The wing or sail can or does direct the craft and the wheel also acts as a rudder. All this is is land sailing so all the principles of water sailing apply to land sailing.
what angle did the apparent wind come round to?
NOW THIS IS PODRACING
Love it , now I can put ice skates on it.
Don't you have to turn around and make a run in the other direction too (within an hour)?
You guys should get Swiffer and Dyson vacuums to sponsor you as well...
Wow those are some tough tires...
@dreamdiction By the looks of it, it's coming to the upper right of the thing.
Surprised he could do this close-hauled too....
i know next to nothing about land a sailing, but why does this.. what are they called? why does this land boat have a stabilizer on only one side?
@AshwinR there is no engine. it's solid sail(s). one of them is used as a rudder or balance and the other for power and that is it, principally.
oh,Dirk Pitt would love this! wow!
Shows the great in Great Brittain for what it is
Land speed records from a small island
@fosterpatron
You know how if you're just standing still, the wind is a lot less strong than when you're walking?
Well, if the wind is powering your boat/car, then you are starting to move. If you move, you get even more wind, because you're moving. Basically, you just keep getting more and more wind because you're moving faster and faster, even though the actual wind speed is the same pretty much the entire time. The only thing that stops you is drag from the boat hull/friction on wheels.
Richard, have you done any development with Richard Noble (SSC Bloodhound)?
so how fast was the wind blowing to go that fast?
Official Dennis B. Makes the call .
At the Salt Flats you must go both reaches for a record. So why only one side wheel ? Is that wheel weighted enough to keep it down. I just loved getting the light side an inch up and then you really feel like your flying. BUT on a very windy day, I did drop my heavy side into a child’s sandcastle hole and disaster. I left my whole axel right there. Long walk home. LOL
Muy bueno !!!!!!
the most fastest non motorized vehicle in the world.
Amazing!!!
it has to do with the apparent wind as you go faster the air over your sail from the movement contributes to your speed in turn also increasing the apparent wind in a vicious cycle until Resistance of either the air or on a boat the water prevents you from going any faster
River Carson. What is the fastest point of sail on land? Is it upwind, medium reach, or broad reach?
I'd say the real answer is really it depends. Every boat/land boat has a different ideal point of sail depending on the complexities of where it is getting resistance from, how its sails are designed, and what speeds it tends to reach, which is dependent on the first two plus wind. The general trend is that the faster you can go the closer to a close haul it becomes, because many dinghies I sail are fastest at a broad reach or low beam reach, while very fast boats like in the Americas cup that take more advantage of apparent wind tend to favor more of a beam reach to close reach, and many ice boats may be even nearer to a close haul. Keep in mind that you aren't creating energy here, just minimizing resistances.
Have a look at the sail in this video and you'll see its basically a close haul at high speeds, when it started between a beam and close reach. Its possible it turned some, but it doesn't look like it has many accommodations for that.
To this very day I have yet to hear a sailing expert successfully articulate any sailing concepts.
What the heck is "apparent wind"? I'm not pulling your leg either. Is it kind of like "gauge pressure"? Do airplanes or other hydraulic apparatuses take advantage of "apparent wind" too? I've never heard that term used with respect to a turbine blade or a valve body. How does it apply?
brilliant !!!
brave dude.
@TheWindMillMan lol what type of wind turbine you talking about?
@onyachamp thx
It looks like the outrigger wheel was on the windward side. It seems that it should be on the downwind side to prevent it from turning over. Meaning it could only travel at speed safely going in one direction.
right, i'm sure you know much more about this than the engineers who built it and broke the world record. i wonder why they aren't taking your advice?
When its on the windward side, it acts as a wing creating down force and righting moment. Kind of like f1.
What is the WINDSPEED?
What would wind speed be on this run?
veicolo mostruoso aerodinamica favolosa
wow amazing
Well done gentleman! Can I take it for a spin?
what was the old record?
Amazing
crazy
only in viedos against land can you really apreciate the power and speed of sailing...
looks like something out of the star wars race
Crazy.
awesome... it's on land....
My F-150 does a solid 55 with a load of wood in it.
I was there to see that run in person - I was attending NABX.net - neat machine but it did tear up the playa a bit :-( and we didn't care for that.
I dont see how it catches wind if the sail is so small
He can go faster than my car and he doesn't even have an engine lol.
No they can go faster then the wind by using vectors, for example if the wind was blowing 10 mph and you are moving 8 your apparent wind would be 12 . You can figure this out by using the Pythagorean therum
We live in fluid right now you are the fluid master. If I had the money US would have the flag. anyway good job
Can these asymmetrical craft tack at all??
+SteamboatEd Haas dont think so
Where was that ?
like a boss
Lol yeah, didn't think about that. The sail going at that speed would've just pulled it backwards.
Ya but how would he get through a drive through?
+davetileguy 'murica....
Haulin ass. Thats how!!!
Enlighten us. Obviously the wind was not blowing at 126.1 mph. Was he using some sort of boost from solar or wind generation?
spettacolare
That is how all sails work
Very cool =)
It's unusual for someone with the required resources to develop such a machine to be interested in renewable and wind energy. Good job. The wheels must begin to loose lateral traction at a certain speed and level of sail force?
Switch to blades and ice and watch the speeds climb !
Parking must be a royal pain in the a....
awsom!!!!!!!
Sir, there's a sailplane on you car.
You should get a glider and put one of those sails on it
further to my previous comment we also raced class 2 land yachts sponsored by embassy cigarettes these were powered by pocket luff sails and in internationl events were very successful