I read an interesting article about a new Laser rig being developed by Julian Bethwaite for the
Olympics. I’ve known Julian since the early 70’s so we talked about the new
rig, why it’s better, and why it’s not for the Laser market or the
Olympics. Here’s our Q&A.
With Julian Bethwaite
The article says you approached the ILCA and wanted funding?
No, I did not approach them, nor did I ask them for money. That’s
bullshit.
Do you believe there’s money developing a rig for the Laser?
We have no intention of supplying anything for Lasers. It’s not
our core business!
The article says you “claim” to have a patent on the rig.
Your wife Pam is very experienced with patents and has seen the
application.
What’s the market for this new rig?
It wasn’t the Laser. It’s for another project that addresses a very
large hole in the market – recreational sailors. The Laser and the Aero were
not designed for this.
Is this rig for the Olympics?
Is this rig for the Olympics?
No. The rig in the photo is too big and the rig we’re developing
for the recreational market is too small, so neither are for the Olympics as
the article states.
How did this project start?
Initially, Chris Caldecott of PSA approached me
about a big rig, but that opportunity timed out 4 years ago. This was pre World Sailing and pre Kim Andersen. Then Takao Otani of PSJ approached me about a smaller
rig. Takao and I have known each other for 40 years and have collaborated on
many projects that include the 49er and 29er. Takao wanted something for Asian
women. This is more likely to fly and the hole in the market is bigger. And I
need to stress that Chris and the ILCA support both rigs, but neither are “Olympic
size.”
How have the rigs been tested?
The big rig has been sailed by more than 50 sailors
that included Tracy Usher (USA), Tom Burton (AUS), Brett Bayer (AUS), but not
my brother Mark. The smaller rig has been sailed by more than 40 kids here in Sydney . The girls love
it, we’ve done good!
So you’re killing two large
markets with one stone – Asia and women?
Absolutely.
Is this part of your mission statement
Yes, we’re developing new, innovative, and exciting sailing
products that change the face of sailing.
How much have you spent developing this particular rig?
Well over $150,000 U.S.
I understand it’s not for the Laser but if it was, how would
it feel?
The carbon rig is 5 kilos lighter which is less than half the
weight so the inertia, which is the square of the weight/arm, is dramatically
better. It’s like driving a Porsche instead of a tank. In addition, a Laser rig
bends to leeward and “kinks’” at the deck level, so this additional weight
reduces the righting movement by 12%. With carbon rigs, this is 4% so a sailor
effectively has 10% more power.
Can you give an example?
Doug Peckover weighing 80 kilos hanging over the side of a Laser
generates about 92 kilos/meter of righting movement. The rig hanging to leeward
of the center of buoyancy reduces this righting movement by 11% down to
about 80 kilos/meter of RM. The carbon rig does not kink at the deck level anything like the
alloy rig and is less than half the weight, so there’s a smaller
counter reduction in righting movement. You’d end up with about 88 kilos/meter
of RM, which means that you’d have 10% more power from the same hiking effort.
Kilos/metre (which actually means kilograms per meter) as a 'moment' is completely incorrect.
ReplyDeleteA 'moment' is measured/calculated as kg.m meaning kilograms multiplied by metres.
Great Post - thanks
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