New World Speed record for Landsailing 126.1 mph

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Gizmo
Gizmo
SA
2865 posts
SA, 2865 posts
27 Mar 2009 10:33am
From the NALSA website.......................conversion 126.1 mph = 202.9 km/h


Hi from Primm, NV. Spread the word. Today Richard Jenkins from England after
many years of attempts broke the 116.7 mph landsailing speed record of 116.7 mph
with Greenbird. Richard hit 126.1 mph. Bob Dill will be verifying the new
record. Winds were from 30 to 40 mph at Ivanpah Dry Lake, Primm, NV. BBC was
videoing this attempt. More news and a nice party tonight for Richard Jenkins
and a job WELL DONE!!!!!!

Mark Harris
North American Landsailing Assn
Pacrim 2009 Championships and America's Landsailing Cup Regatta
Primm, NV


Here is a link to "Greenbird" blog.
http://blog.greenbird.co.uk/

j murray
j murray
SA
947 posts
SA, 947 posts
27 Mar 2009 12:04pm
Thanks for that post Gizmo, reckon id like to witness that, if there were a lot of life in front of me id like to give that a go roll on a lotto win To save time i will start doing plans now CONGRATULATIONS TO ALL INVOLVED
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
27 Mar 2009 9:19pm
FAZE5
FAZE5
SA
55 posts
SA, 55 posts
29 Mar 2009 12:22am
Well done Richard!
A new legend!
bazl
bazl
WA
704 posts
WA, 704 posts
29 Mar 2009 1:05am
It was always going to be a matter of when and not if. Just unfortunate it didn't happen at Lake Lefroy last year, but at least we had the privilege of having the opportunity to see the craft and meet some of the team.

2009blokartnas.blogspot.com/
j murray
j murray
SA
947 posts
SA, 947 posts
29 Mar 2009 12:32pm
hi gang,
haven't heard anything of this in the printed or vision press, so i tried to put it on Kwoff front page but stuffed up something like my password and it denied entry to me. could some of you more enlightened young whipper snappers post it in there for all the world to see like, they need to know . The world has to know that there is greater things to do than wrapping metal around stobbie poles [}:)] Dont forget all the graph thingmy's too sock it too them, "give me wind ill give you speed"
chronic
chronic
NSW
318 posts
NSW, 318 posts
29 Mar 2009 8:02pm
nice going...!!
obviously he has invested a scrillion or two on this - anyone have a ball park idea how much?
just to satify my curiosty that's all
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
29 Mar 2009 8:28pm
Much of the materials were supplied by sponsors. I dont think there would have been enough Carbon fire in WA to build the present yacht. At $100: per m Im guessing $100,000. do not quote me on this. keep in mind this is the 3rd yacht that has come to WA.

Richard has been responsible for all the designing and built all the molds etc then layed up everything , then did all the finishing , assembling, painting, rebuilding etc. a massive effort and always in incredibly short time frames.
The wing ,axle , and most of the body in the current yacht were layed up in The Philippines? with Richard and a couple of locals in a sponsors boatyard..
That yacht was modified by richard last winter in Busselton with some help from a mate who came over from the UK to help.
The Ecotricity sponsorship was a major boost to his campaign, but keep in mind that the sponsor spent more money sending a film crew to WA last year than the amount Richard was sponsored with!
I am just stoked that he's pulled it off after so much effort and dissapointment.
His new speed is a good healthy jump in the record , so the Iron Duck team will have to get their finger out to break it.
suppose the next frontier is to crack that Ice record .............on land
nebbian
nebbian
WA
6277 posts
WA, 6277 posts
29 Mar 2009 9:46pm
Hey Landyacht,

When I saw the pictures of it a while ago I thought that the pod out to the side would be on the lee of the sail, so that it would have enough leverage to stop the whole thing tipping over.

But from the video it looks like it's out to windward! Is this right? Does it have some mass out there, or is it all in the aerodynamics of the beam that connects it to the main chassis?
hills
hills
SA
1622 posts
SA, 1622 posts
30 Mar 2009 8:45am
That's what I thought too
BeeGee
BeeGee
VIC
99 posts
VIC, 99 posts
30 Mar 2009 10:09am
Read the article - it explains it all.

I have to say that it is an amazing piece of engineering.
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
31 Mar 2009 8:18pm
The "axle" is an aerodynamic wing to create downforce. some 400kg apparently.
it also carries mssive blocks of lead which can be added or removed.
The dynamics of a wing are different to a sail.
If you look carefully at the video at the end of Richard.s run the wing is raking forward , not back, ie pulling into the wind , accelerating and pulling the yacht , rather than pushing it.
The yacht in its previous shape as Windjet, version 3, was very interesting to follow, as the rear wheel seemed to lift when the yacht caught a gust and accelerated. Im really impressed that Richard was able to steer it, but then he wasnt held back by traditional concepts of how a landyacht should work
Gizmo
Gizmo
SA
2865 posts
SA, 2865 posts
1 Apr 2009 8:03pm
An amazing feat to get any land based vehicle to that speed let alone one that is wind powered.
If you do the maths the record speed was just over 3 times wind speed. Looking up the figures for "Iron Duck" it was just over 3 times wind speed also.
At the speeds that they are doing the aerodynamic drag must be huge and the wind angle on the rig so slight.
It will be interesting to compare the figures of "Greenbird Ice" when it and Richard tackles the ice speed record.
I did notice on the video of "Greenbird" the front on shot showed the rear end of the yacht sliding out slightly maybe 5-10 degrees.
lachlan3556
lachlan3556
VIC
1066 posts
VIC, 1066 posts
2 Apr 2009 2:56pm
Is that 'rear end slide' normal when sailing a landyacht? I dont have enough experience to tell but Dad and I couldn't sail ours without it doing this last time we had it out at lake Cullens. So much energy wasted
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
2 Apr 2009 8:24pm
couple of possible causes. in your case it would probably be due to to much power too far back . you might be alright if you had more speed when the gust hit.
In Richards case it could be sheer power , loss of traction over looser clay. Maybe the Main rear wheel lost traction from the yacht body twisting as the mast raked forward.
I felt that it looked like it was due to the lag time in richards reaction to a gust .
( my thoughts only). I was rather impressed at how he handled it
lachlan3556
lachlan3556
VIC
1066 posts
VIC, 1066 posts
3 Apr 2009 10:58am
Ok, good news. Thats your answer to everything, MORE SPEED!!
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
3 Apr 2009 8:59pm
yup, if you do it fst enough, it doesnt hurt for so long.
in the case of your yacht the sail is your engine ,so you need to try not revving the engine when going slow
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