One Kerem Kirkpinar.

I'll ask around. Maybe one of the old guys will know

DavMen said...

SIN101=0.981627183

this is clever. took me a second but then my math brains kicked in

isnt it Kevin Netto????

Ian K said...

landyacht said...

finshed the sail tonight, but didnt have time to rig for a photo before dark.
something to look forward to whilst mowing lawns tommorrow
meanwhile heres the picasso that was donated to my research late last year
cut back from 5.5 to 2.8m. cracked a 70.6kph on its first resail that got to 90.00before the wind got to strong on sunday . i then rigged my daughters 2.2m beginners sailand crept up to 90.67 before I chickened out. an unvoluntary double 360 with a recovery speed of 75kph, and all 3 wheels staying on the ground throughout has a chickening effect
even I dont get away with that very often

How much drag would an extra front wheel add? Reliant Robins are famously unstable with only one front wheel.

Good question, I have thought the same thing

Thank you kevin netto for your kind donation.
reliant robins have a motor sitting over the frontwheel,and people just behind. in my landyachts the centre of gravity is about 200mm in front of the back wheels, directly below the centre of effort of the sail.
when you guys move your rig forward or back , we bend our knees and slide forward /back. ( well , we should , but some one will reply shortly and tell you that you lean out,but thats a technique from the age of dinosaurs.).
you dont get much more stable than this configuration.
the mast is 3.5m overall,cut from an early carbon( probably 10%)WA made hypersonic RX sport wallymast.mast rescued from kerbside pickup in Greenmount sail area 2.52m, slight front suspension to assist tacking upwind, and long flexing rear axles for stability assistance. I do hope the 101 tag is an omen

Well for a start the sailor/driver, can lay down so there's less drag from him/her/.

The mast will have a different bend as well, because it's only supported at the base. Don't know what effect that has.

Wineman said...

DavMen said...

SIN101=0.981627183

You've still got it Dave.

Bet your family HATE your Dad jokes. [}:)]

Child: Dad Can I ask you a question?
Dad: You mean besides that one?

......Yep they HATE my Dad jokes!

What is the wind span you intend to sail in? the sail looks so small!
Where are you sailing in WA?

felixdcat said...

What is the wind span you intend to sail in? the sail looks so small!
Where are you sailing in WA?

last weekend we camped out at Lake Lefroy( south of Kambalda ) and started sailng at 8.30amwind was +20knts, so we started withthe picasso cut down .
it had pulled a 77kph the day before in 18knts.
first run was an 80.1 then1/2hr later up to 85.4. then we swapped pilots , I got in and did an 87.6, then a 90.00, the wind was up to 25+ with gusts, i changed to an old tatty 2,2m sail that was flapping and banging , but managed a 90.67.
with a smooth clean sail i think another 5kph would have been possible in that wind, , we were packed up by 1.00pm as the wind was now35+ and the flappy sail was not safe to use, a flapping sail will transmit down to the front wheel making steering really difficult and usually causes you to spin out, rather than capsize.
today I finishe d off a 2.2m stuart bell cutdown, which should have real potential, and a 2.4m RAF that i will let somebody else use so they dont feel left out
I would love to get 100kph out of the way in this mini classand get on with cracking 110. my daughter cracked a 105.1 in exceptional circumstances, last year, so it is possible.
I managed 110 in all the other bigger yachts I have , so bringing the minis up to that potential has become a bit of an addiction for me
so yes the sails look and feel small right up to the point where your windward wheel starts to lift

the torch is safe for another weekend, only had the 4.5m out today in 13kph wind for a 54.4kph

actually you lay as still as possible and hold the sheet rope in tight , the only movement is you feet moving slightly to keep in a straight line.. its more like the luge or the skeleton bobsleds, just bracing your body and focusing on the little tweeks that make you go fast
I would rank it as one of the laziest "exteme" sports around.
When i see adverts on the internet advertizing Blokarts as Extreme sailing machines , it still makes me chuckle
here we are at 77kph , dont go to sleep now

This is a contraption I built about 6 years ago, mainly from kids bikes found at the tip. I built it to get my kids into it, but they have all left home now. It seats 2, has a brake, and dis-assembles for storage.
I would recommend it to any windsurfer who is itching to go for a blast when there's bugger all wind.
(the photo makes it look as if it has forward mast rake but this is not so)

got some consistent results for SIN 101 today,
wind was 30kph gusting to35. sail cruised at 75 and peaked in the gust at a sniff over84.
having that big square top seemed to even the ride out so that even on 2 wheels the sail handled nicely mind you I did capsize on one wet patch, which is a first for the new yacht.
so a big thank you to all the windsurfers that drop off sails to the recycling depots and give us the opportunity to try these experiments