Macquarie Innovation breaks 50 - hits 54 knots

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evlPanda
evlPanda
NSW
9207 posts
NSW, 9207 posts
6 Apr 2009 4:45pm
"Australian sailors Simon McKeon and Tim Daddo who made history in 1993 with the Lindsay Cunningham designed Yellow Pages, leapt back into the history books Thursday night when Macquarie Innovation powered down the Sandy Point speed course near Wilsons Promontory in Victoria, at an average speed of 50.43 knots."

www.sail-world.com/Australia/New-World-Speed-Record:-Macquarie-Innovation-breaks-50---hits-54-knots/55222


C'mon Stewie!
sausage
sausage
QLD
4874 posts
QLD, 4874 posts
6 Apr 2009 5:29pm
Panda,

www.seabreeze.com.au/forums/topic.asp?TOPIC_ID=49735

Sailquik has posted an update on MI's most recent runs as per the above link. Massive effort all round and a true sailing record to boot (flame suit on)

PS - Looking forward to seeing it in the buy & sell section of Seabreeze - "one slightly damaged speed sailing thingumajig. Top speed 54knots. Make an offer"
Then I will take it to Burrum heads for next years speed challenge. Anyone interested in being co-pilot
CJW
CJW
NSW
1731 posts
CJW CJW
NSW, 1731 posts
6 Apr 2009 8:05pm
I don't really mind that a kiter holds the outright record, but that only my personal opinion and a debate that's been run many times over.

On the other hand I think it would be simply awesome if MI could take the world record back. Personally I think the MI record is much more of an achievement, I terms of pure design anyway. The kite/Windsurfing records are more just pure brawn over brains. The fact that MI can do over 50kts in 20ish kts of wind is just simply awesome!

Here's hoping they get the perfect wind and that perfect run and raise the benchmark up so say 55kts. If they do, I think it will be a while before anyone breaks that....and it won't be a windsurfer.

Edit: saw the other thread RE the crash....doh
Chris249
Chris249
357 posts
357 posts
6 Apr 2009 7:02pm
On the other hand, given how tiny a board is they can also make a claim to being more brains than brawn, can't they?


CJW
CJW
NSW
1731 posts
CJW CJW
NSW, 1731 posts
6 Apr 2009 9:22pm
WOD said...

On the other hand, given how tiny a board is they can also make a claim to being more brains than brawn, can't they?


When they can do > 50kts in 20kts of wind, then yes maybe they could. Currently in efficiency terms they are not even in the same ballpark as MI, tiny board or not.
Chris249
Chris249
357 posts
357 posts
6 Apr 2009 8:09pm
Well, surely there's more than one definition of efficiency?

If something 6' long with 5m of sail can be almost as fast as something about 40' long with 25m or so of sail, isn't it also extremely efficient in a rather different way?

Looking at what seems to be an engineering definition of efficiency ("the ratio of the energy delivered (or work done) by a machine to the energy needed (or work required) in operating the machine") then a board or M1 may be pretty close, if you define the "energy needed" as the amount of wind force exerted on the rig and "the energy delivered" as speed.

I'm not meaning to knock the M1 guys (the few words I've had with them confirm that they're great guys) but just wondering about how you define efficiency.
CJW
CJW
NSW
1731 posts
CJW CJW
NSW, 1731 posts
6 Apr 2009 11:01pm
Yes you are right you could approach that from various angles, but I simply mean going as fast as you can in the least possible amount of wind. Lets call it the boat speed/wind speed ratio. MI is at about 2.5:1 , kite record is about 1.2:1.

It's just too hard to know, from where I sit anyway, which record is purely more efficient in terms of 'energy in - energy out'. If you look at 'sail area' the ratio is about 5:1, going on your numbers which i'd say are ballpark. Potential lift per area is almost the opposite at about 1:5 as lift increases with the square of windspeed, so maybe they are a lot closer in terms of efficiency that I thought. However, there are so many assumptions in that 'calculation' that it's laughable so i'll just go with the boat speed/wind speed ratio Or 'MI goes almost the same speed in a shirtload less wind'

Both incredible achievements either way, just to me MI is more impressive, personally. No factual justification behind it.

evlPanda
evlPanda
NSW
9207 posts
NSW, 9207 posts
7 Apr 2009 1:12pm
Agreed. Going 50+ in 20ish knots of wind is something to be respected. Sounds impossible.

As I've said before (nobody's bitten) any nutcase can take a kite and a rubber tube out in a cyclone.
WINDY MILLER
WINDY MILLER
WA
3183 posts
WA, 3183 posts
7 Apr 2009 11:19am
i wont be impressed untill i see MI pull off a willy skipper.
Spotty
Spotty
VIC
1619 posts
VIC, 1619 posts
7 Apr 2009 6:18pm
Wait till you see the video Windy Miller, it looked like it could of been going for one on its last run on Sunday.
WA Surf
WA Surf
WA
336 posts
WA, 336 posts
12 Apr 2009 9:57pm
Great boat, wonderful achievement, but why have these guys not found better wind on over 15 years of trying? Where is the 60 knots in 30 knots of wind?
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
13 Apr 2009 7:41pm
I'll be impressed when Hobie starts manufacturing them
sailquik
sailquik
VIC
6171 posts
VIC, 6171 posts
13 Apr 2009 10:01pm
WA Surf said...

Great boat, wonderful achievement, but why have these guys not found better wind on over 15 years of trying? Where is the 60 knots in 30 knots of wind?


Because:
1. The WSSRC rules are a heap of crap that severely restrict when you can actually take a run to claim a record. I have lost count of the days that would have been perfect for them but they were outside their booking period.

2. They have a quite small window of appropriate conditions. they need steady wind from the SW (Just the right angle) at 22-26knots. If it is gusting or squalling 30 knots it is too dangerous for them to run. If it is less than 20 knots they probably can't get to 50 knots. To give them credit, they have massively improved the controllability and therefore wind range of the craft over the last few years and I think it paid off for the 50 knots run.
greenleader
greenleader
QLD
5283 posts
QLD, 5283 posts
13 Apr 2009 11:07pm
i guess then that MI is not a craft that you would just bust out for a sunday arvo sail at a whim then!


....hey honey, i've mowed the lawn, let's take macquarie innovation for a few runs.....
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