whats your top water speed? i hit 62 kph

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bellevue
bellevue
NSW
221 posts
NSW, 221 posts
27 Feb 2007 3:13pm
hey all, i hit 62 kph in the shallows at old bar on saturday in 27nts ne.got smashed a few times trying to get there,
i used an arm mounted a300 navman which is for skiing,i was hoping it would give me an altitude ready on jumps butits too slow to read,bummer dudes. i also hit 51 k`s in the surf a nobys last week.

anyway, what is everyones top speed? & where did you do it?
cheers
daz
newcastle
ps;the navman cant be downloaded into computer(cost $230)took a pic on my phone but,

JUST ADDED PIC OF IT IN PHOTO`S.
GreenPat
GreenPat
QLD
4107 posts
QLD, 4107 posts
27 Feb 2007 2:35pm
72km/h or so, at the speed strip in Walvis Bay, Namibia, where all the world speed records are set.

harry potter
harry potter
VIC
2777 posts
VIC, 2777 posts
27 Feb 2007 3:35pm
Is the arm mounted navman water proof / resist.

Interesed as i would like to give this speed stuff a try. Also what size board and kite did you use ?
Strongbow
Strongbow
WA
273 posts
WA, 273 posts
27 Feb 2007 1:42pm
I hit 42 knots last weekend between lucky bay and pelican point.
This was achieved riding my southwind 6.5m sports.
Speed recorded on garmin gps.
The 175 hp motor was a definate help.

Sorry im bored.
Garth
Garth
WA
67 posts
WA, 67 posts
27 Feb 2007 1:54pm
You will need to excuse my ignorance but if Bellevue was doing 62kph and according to my calculations is 33.5knots, does that mean that the wind speed on that day was at least 33.5knots.
Just say for instance the wind was only 20/25 knots, is it actually possible to go faster than the wind speed is and do say 33.5 knots???
harry potter
harry potter
VIC
2777 posts
VIC, 2777 posts
27 Feb 2007 3:57pm
175Hp and you could only get her to 42knts are you sure shes running right perhaps dropped a cylinder or two.

The new Queen Mary ( the big one ) is reported to be capable of 32.5 -36 knts.
I'm bored too
GreenPat
GreenPat
QLD
4107 posts
QLD, 4107 posts
27 Feb 2007 3:03pm
I was on my standard LF Element 134, using airush lift 10m, the wind was about 35 knots. I weigh 110kg.

Jurgen Geiger who runs the speedweek competition was out with me on a 7m and a custom speed board. He weighs about 85kg. He did four runs in a row topping 40 knots over 500m. My 39.4 knots was just the instantaneous reading from the device, and considering their accuracy I might not have even gotten that fast. I am pretty confident I cracked 70km/h, and will keep claiming 72 for lack of better information.

There's plenty about speed kiting here, on kiteforum.com and on various other speedsailing sites. Australians don't really get into it for some reason though. Now at 112kg I don't think I'm ever going to achieve greatness as a freestyle kiter, but I'm thinking of getting a custom board done and setting up some virtual gates somewhere and possibly enter the international speed competition this year. 39.4 knots on my first attempt with all stock standard gear I thought was a pretty good attempt. I think being plus sized, with a bit of strength, is a decided advantage in speed sailing.
Oakie
Oakie
WA
268 posts
WA, 268 posts
27 Feb 2007 2:23pm
quote:
Originally posted by Garth

You will need to excuse my ignorance but if Bellevue was doing 62kph and according to my calculations is 33.5knots, does that mean that the wind speed on that day was at least 33.5knots.
Just say for instance the wind was only 20/25 knots, is it actually possible to go faster than the wind speed is and do say 33.5 knots???



Yes - You can go faster than the wind, depending on the direction of travel and the wind strenght (among other things), but its too much to go into detail here. The forces of the kite and board acting against each other force you out at an angle bewteen the two. Think of it like sqeezing an apple pip from between your fingers - they barely move, but the pip can be forced out at a hell of a rate. Simple
xtortya
xtortya
WA
322 posts
WA, 322 posts
27 Feb 2007 2:33pm
i believe its called apparent wind.
az
robbo
robbo
WA
306 posts
WA, 306 posts
27 Feb 2007 2:47pm
apparently (lol) its like a right angled triangle.

your speed = one side (ie 3Kn)
wind speed = the other side (ie 4Kn)
Apparent speed = the hypotenuse (ie 5Kn)


or something along those lines...
GreenPat
GreenPat
QLD
4107 posts
QLD, 4107 posts
27 Feb 2007 3:56pm
When Jurgen and I were out getting around 40kts the guy on the beach with the hand held meter was reading 35kts with gusts to 40. To cover the 500m that Jurgen was though one would think that you'd need more than a gust to maintain that speed.

In the Stance 6 DVD there's footage from the year before where Olaf Marting set the record at 41.79 knots and the words '40 knots' were flashed up on the screen on a panoramic shot of the windy beach.

If you think about the vectors involved it is pretty obvious that you can kite across the wind faster than the windspeed itself. If I had time and energy I'm sure I could draw up a nice neat proof, but I don't.

The question is, can you go downwind faster than the windspeed? Theoretically yes, and I've seen a proof for it, but not analysed it in depth nor seen it in reality. It would be a bit of a mission...

silviu
silviu
VIC
663 posts
LEWISS
LEWISS
NSW
335 posts
NSW, 335 posts
27 Feb 2007 7:19pm
I hit 112 km/h the other day at our river mouth, beat that..

I was riding me SEADOO RXP jetski though.

bahahahaaha.

SORRY IM BORED- havnt had any wind IN SOOOOOOOOOOOOOOOOOOOOOOOOOOO long- sooooooooo depresing.
colinwill78
colinwill78
VIC
1395 posts
VIC, 1395 posts
27 Feb 2007 7:21pm
i know i'm going faster than walking pace because it takes longer to walk back than it did to kite there.
ryan78
ryan78
QLD
53 posts
QLD, 53 posts
27 Feb 2007 6:25pm
lewiss sounds like u need to spend 90 bucks and head up here to mackay the winds been gold .
mkiter
mkiter
26 posts
26 posts
27 Feb 2007 5:35pm
nah ..way to fast ..were you wearing a GPS?
Strongbow
Strongbow
WA
273 posts
WA, 273 posts
27 Feb 2007 5:38pm
I have a magellan explorist that is not water resistant. Has anyone tried taking their land based gps's for a little ride with them on the water packed in a little dry bag or something like that.
LEWISS
LEWISS
NSW
335 posts
NSW, 335 posts
27 Feb 2007 7:42pm
quote:
Originally posted by ryan78

lewiss sounds like u need to spend 90 bucks and head up here to mackay the winds been gold .



I know, haha but I have something lovely and amazing (NOT) called school.

south of us is getting good NE ers. North of us are getting good SE ers. and WE ARE GETTING NOTHING.
wdric
wdric
NSW
1625 posts
NSW, 1625 posts
27 Feb 2007 11:33pm
quote:
Originally posted by Strongbow
Has anyone tried taking their land based gps's for a little ride with them on the water packed in a little dry bag or something like that.



Used an etrek a while back, work fine

I have been looking into getting another gps & I reckon a geko 201 ($250)with a aqua pack (about 40)will be just what you need.

This GPS can connect to a PC to download your data is well priced.
Although a lot of these gps's are water proof, there are plenty of horror stories out there so it is worth a few more bucks to protect your investment, plus it will also float.

ric
Strongbow
Strongbow
WA
273 posts
WA, 273 posts
27 Feb 2007 9:53pm
Thanks Ric. Ill check out the Aqua pac. Do these have some form of clip to secure to youre body, or did you use a small bum bag type set up.
wdric
wdric
NSW
1625 posts
NSW, 1625 posts
28 Feb 2007 12:56am
At the time as the gps was water proof I just wanted to make sure if I had an impact it would survive the extra pressure on the seals, so I just used a plastic bag & duct taped to myself.

but these look like the go, not sure where to get in Australia yet
http://www.aquapac.net/ukstore/erol.html#594X1129

Aus site but no pics
www.aquapac.com.au/Outdoor%2B%2526%2BCamping/Waterproof%2BCases/Productlist.phtml/resetsearch=1

also found these
www.waterproofcases.net/prosports.html

All these have been mentioned on various ozi forums as being used
I am guessing surf & camping shops will have these.

Will be getting something in the next week or so to try and go faster than Daza

ric
elmo
elmo
WA
8896 posts
WA, 8896 posts
27 Feb 2007 11:07pm
For kiting 62kmh is no probs.

I put my GPS on one of our local kiters who whilst mainly working up wind with the wrong style of board was pulling 66. He was surprosed with how easy it was.

The best I could do on the day Trying to go fast on my windsurfer was 62.

Kites have huge potenitial. Put your gps's in an aquapac and give it a fang, speed is addictive, you can also use your GPS for measuring your height on boosts as well.

Alby
echostorm
echostorm
QLD
1245 posts
QLD, 1245 posts
28 Feb 2007 1:21am
quote:
Originally posted by Oakie

quote:
Originally posted by Garth

You will need to excuse my ignorance but if Bellevue was doing 62kph and according to my calculations is 33.5knots, does that mean that the wind speed on that day was at least 33.5knots.
Just say for instance the wind was only 20/25 knots, is it actually possible to go faster than the wind speed is and do say 33.5 knots???



Yes - You can go faster than the wind, depending on the direction of travel and the wind strenght (among other things), but its too much to go into detail here. The forces of the kite and board acting against each other force you out at an angle bewteen the two. Think of it like sqeezing an apple pip from between your fingers - they barely move, but the pip can be forced out at a hell of a rate. Simple



1 word.... relative wind.
elmo
elmo
WA
8896 posts
WA, 8896 posts
28 Feb 2007 11:01am
Heres Tilmann Heinig, the top guy on the GPS kiting site
http://50knots.xs4all.nl/gps-kitesurfing/gps.asp?mnu=user&val=96&uid=4

and one of his videos



The beauty of kites is that they don't need the ball tearing breezes us poor wind surfers need, just some nice steady wind and some good flat water.

For any who are interested have a look at the 50knots site, it gives all the details about GPS's and how to do it all, the software is free
harry potter
harry potter
VIC
2777 posts
VIC, 2777 posts
28 Feb 2007 1:14pm
Would love to see what would happen if he sent his kite at that speed.
yeeeeehaaaaaa
NSW, 4382 posts
28 Feb 2007 4:32pm
Kitepower stocks the Navman and Garmin Etrex waterproof GPS units. I would use the Navman without a bag, but use my Etrex with a bag.
http://www.kitepower.com.au/catalog/category_323_GPS_Windmeters__Pumps.html

The Australian designed and owned Paqua pouches are the most durable and versatile, and will fit a wide variety of objects, including phones and GPS units.

The Garnin unit can download data to your computer.

Cya and

Goodwinds

Steve
harry potter
harry potter
VIC
2777 posts
VIC, 2777 posts
28 Feb 2007 5:31pm
Steve,
Do any of them really measure altitude ( as someone mentioned earlier ) also are they in stock.
cheers ,
matt
colinwill78
colinwill78
VIC
1395 posts
VIC, 1395 posts
28 Feb 2007 5:46pm
quote:
Originally posted by echostorm

quote:
Originally posted by Oakie

quote:
Originally posted by Garth

You will need to excuse my ignorance but if Bellevue was doing 62kph and according to my calculations is 33.5knots, does that mean that the wind speed on that day was at least 33.5knots.
Just say for instance the wind was only 20/25 knots, is it actually possible to go faster than the wind speed is and do say 33.5 knots???



Yes - You can go faster than the wind, depending on the direction of travel and the wind strenght (among other things), but its too much to go into detail here. The forces of the kite and board acting against each other force you out at an angle bewteen the two. Think of it like sqeezing an apple pip from between your fingers - they barely move, but the pip can be forced out at a hell of a rate. Simple



1 word.... relative wind.



different word same meaning; apparent wind
elmo
elmo
WA
8896 posts
WA, 8896 posts
28 Feb 2007 4:44pm
quote:
Originally posted by harry potter

Steve,
Do any of them really measure altitude ( as someone mentioned earlier ) also are they in stock.
cheers ,
matt



G'day Matt,

I use the Garmin Geko 201 which is one of the units recommended by the GPS speed sailing crew.

This GPS will measure altitude and log the data, The finest setting which it can be dialed in at is 1 second so you may miss by a few feet but you should be able to reasonably logg your boosts, with height and duration.

My recommendation if you are looking at doing the GPS thing is checking out the GPS kite site, they have lots of information there about the units to use, software and setup. If you do go and lash out on a GPS try to avoid the Navmans and any other GPS which will only give you a top speed, make sure you get a data logging unit (the geko stores 10000 track points).

I think all up my GPS setup including data cables and Aquapac cost between 3-$400.

The beauty about the GPS thing is that you end up racing your own PB's.

Speed sailings a great buzz for when the waves aren't working, or if you want a break from launching yourself into the stratosphere.

Alby
wdric
wdric
NSW
1625 posts
NSW, 1625 posts
28 Feb 2007 11:55pm
quote:
Originally posted by harry potter

Do any of them really measure altitude


The way I see it

If you want a basic GPS to do your speed, download your tracks to the PC it would be hard to go past the Geko 201 for value for money in the garmin range.

Don’t trust any of these garmin’s waterproofing, get an aquapack.

Most of these gps cables I am sure are serial port (need a usb adaptor on new laptops).

Don’t get to wrapped up in the altitude stuff. Although they work very good when in a car or on a bike when going up and down hills, it is generally accepted to be + or - 15 meters in Australia (usually a bit closer) and that is at velocity of only 0.18 kilometer/hour.

Geko 201 $240
Pros Trip computer
PC cable included
AAA batteries (12hrs)
10000 track points (record more time on the water without loosing data)
Cons ?

Etrex $200
Pros Trip computer
AA batteries (22hrs)

Cons 2000 track points ?
PC cable not included more $$

Etrex Legend $280
Pros Trip computer
PC cable included
AA batteries (18hrs)
Other features suitable for stuff besides kiting

Cons 2000 track points ?

Foretrex 201 $310
Pros Trip computer
PC cable included
10000 track points

Cons Wrist mounted
Rechargable battery (15hrs)

Forerunner 201 $270
Pros PC cable included
10000 track points

Cons Wrist mounted
Rechargable battery (15hrs)

Edge 205 $400
Pros PC cable included (USB)
13000 track points
SiRFstarIII receiver (should be more accurate for speed measurements)
Has features for bike riding

Cons Rechargable battery (12hrs)
cassie1506
cassie1506
9 posts
9 posts
28 Feb 2007 10:13pm
so you have speed of wind
you have relative speed and the like but what about all the other variables like water diection. can this add a measurableamout to the top speed and how do you measure it???
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