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by GregK
Sat Dec 02, 2017 11:48 pm
Forum: Hydrofoil
Topic: America's Cup 2021, the hydrofoil AC75
Replies: 34
Views: 1776

Re: America's Cup 2021, the hydrofoil AC75

More work for the lawyers - anyone notice the comment under the Youtube vid ( actual Youtube page of this vid ) in Chris G's original post ? Comment was made by SBS - Sailing Booster System a week ago, pretty far down the list of comments. There is a Brazilian naval engineer ( Manoel Chaves - http:/...
by GregK
Tue Oct 24, 2017 9:24 am
Forum: Kitesurfing
Topic: Leaks in bladder around valves
Replies: 4
Views: 438

Re: Leaks in bladder around valves

No need to cut the bladder to remove salt crystals. Get a funnel and put a few liters of warm water into the LE or strut bladder ( pinch off the struts if doing a LE ) and gently move the water around. Then drain it out by elevating the tip(s) and make the dump / big inflate / 1-pump valve the lowes...
by GregK
Sat Oct 14, 2017 10:53 pm
Forum: Kitesurfing
Topic: Slingshot 2010 bar unequal line length
Replies: 4
Views: 432

Re: Slingshot 2010 bar unequal line length

Both front lines about 2 cm shorter than steering lines sounds to me like the trim line ( the 5 - 6 mm thick grey line used to trim the power level at the clamcleat on the chicken loop ) is set 4 cm too short. If there isn't enough extra line out at the trim handle on the end of the line to lengthen...
by GregK
Sat Oct 07, 2017 9:18 pm
Forum: Kitesurfing
Topic: How to make a kite
Replies: 103
Views: 5512

Re: How to make a kite

Literally the only thing made by computer is when it cuts fabric... Some stitching steps that are done exactly the same in multiple places, like the reinforcements at bridle attachment points and valves openings are done with a programmable quilting ( X-Y displacement ) table under the sewing machi...
by GregK
Thu Oct 05, 2017 10:27 pm
Forum: Kitesurfing
Topic: heat sealing valves to bladder
Replies: 9
Views: 816

Re: heat sealing valves to bladder

Todd - start up a business selling replacement stick-on valves and you will very quickly understand why they cost what they do.
by GregK
Thu Oct 05, 2017 10:16 pm
Forum: Kitesurfing
Topic: heat sealing valves to bladder
Replies: 9
Views: 816

Re: heat sealing valves to bladder

Todd - as edt posted, almost all kite bladder valves are made from PVC, and the kite bladders thermoplastic urethane. In the kite factories, the valves are thermally welded to the bladder film using RF ( radio frequency - akin to a microwave ) welders, thus very difficult to do without expensive equ...
by GregK
Sun Oct 01, 2017 11:08 pm
Forum: Kitesurfing
Topic: Pics of your fav kiting spot.
Replies: 38
Views: 5803

Re: Pics of your fav kiting spot.

plummet wrote:
Thu Feb 26, 2015 8:32 pm
... spots look horrible. ... no decent waves.
That's because you're looking through Taranaki eyes - you are entirely spoiled.
by GregK
Mon Sep 11, 2017 2:09 am
Forum: Kitesurfing
Topic: Replacement SS Valve
Replies: 3
Views: 392

Re: Replacement SS Valve

by GregK
Tue Aug 08, 2017 12:04 am
Forum: Kitesurfing
Topic: Twin Tip Foam & Glass Recommendations
Replies: 3
Views: 524

Re: Twin Tip Foam & Glass Recommendations

Yes these guys make a thin and very light Divinicell foam core board - http://brokite.com/

I've never ridden one, but anyone I've met who owns one absolutely love their boards. Very rare to see them up for sale, another strong indicator of owner satisfaction.
by GregK
Mon Aug 07, 2017 11:51 pm
Forum: Kitesurfing
Topic: Is this worth fixing?
Replies: 28
Views: 3008

Re: Is this worth fixing?

If you want information on how to do a professional job, read http://boardlady.com/repairmenu.htm

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