User Tools

Site Tools


equipment:cartop_loads_2008

This is an old revision of the document!


Re: Another Rudder Story
Erik Borgnes

06/19/08 #4536

It's a give and take with hull layups. The Epics have a kevlar skin which will resist punctures better than straight carbon, but the kevlar honeycomb combo is more prone to indentations. For example, a friend here in Wisconsin got a new V10 Ultra. Tied it down nice and tight on his Mako saddle Yakima roof rack so that the ski fit symmetrically over the car, i.e. just as much sticking out in front of the front bumper as the rear bumper. Then he proceeded to drive 70 mph (110 kph for our unarmed friends), into a 30 mph (50 kph )side wind. The ski hull got two big dents where it met the front saddles. Big dents. He should have pushed the ski way back on the rack so that there was less ski forwards of the front saddles which would decrease the torque on the hull in a cross wind, right? Maybe traveled with it facing backwards, too.

I'm not sure which I'd go for if I had a choice - a solid carbon ski, or a kevlar/honeycomb ski. I've always had solid carbon or glass skis. Carbon is now really expensive and hard to come by, kevlar isn't. Maybe Daryl can fill us in more and what we might be seeing in the next few years.

Erik


Re: Another Rudder Story
JD Davies <jd@…>

06/19/08 #4537

The problem is the Mako saddles not the boat layup.
Unless the saddles are padded up properly, they will
point load the bottom of any ski. You are better off
putting the ski on upside down on a pair of foam pads,
or try and find the old TLC saddles from Yakima.

Aloha,

JD Davies


Re: Another Rudder Story
Larry Bussinger <lbussing@…>

06/19/08 #4538

When I had Jude lay up my boat, I had him put in extra material where
I knew the boat would lie on the rack. For the same reason as
mentioned below. With 20 foot boats, and the new cars having racks
designed for bicycles it wouldn't be hard to see 8 feet of boat in
front of the support. Larry B


Re: Another Rudder Story
Larry Bussinger <lbussing@…>

06/19/08 #4539

I also used Yakama Huli rollers so the cradle will match the boat
profile evenly. I had to file the bracket to get more angular
motion. They are still point load, but at 4 places, 3“ long and
evenly distributed over a larger area.
Larry B


Re: Another Rudder Story
JD Davies <jd@…>

06/19/08 #4540

The Hully Rollers are worse than the Mako's for a Ski or an OC-1.
They were designed to help get wider and heavier boats on
your rack, not cradle it. I have been a Yakima dealer for 14
years and will not sell them for any high performance boat. You
are better off spending 20 bucks for a pair of pads rather than
over 100 for something that will do nothing but damage you boat.

JD


Re: Another Rudder Story
Larry Bussinger <lbussing@…>

06/19/08 #4541

Maybe, but I have had a boat on my truck for 320+ days a year for
well over 10 years and have never had a problem other than black
marks. But like I said, I filed the brackets so they can turn so the
flat of the rollers lay evenly on the curve of the boat. Larry B.


Re: Another Rudder Story
Daryl Remmler <darylremmler@…>

06/19/08 #4542

I'm working on a spagetti injection lay-up, bonded with marinara sauce. This will be done dry-bagged, so we can lay-up the noodles just right. The sauce to noodle ratio will be about 31.7%, and the taste will be, dare I say, spectacular. Think Lasagne, coming in 09!

Daryl


Re: Another Rudder Story
mike Gregory <falloff999@…>

06/19/08 #4543

Yeah right! Chinese Marinara? Ya been goin' too heavy on that Green Tea over there Daryl. Hmmm, actually a Green Surfski - like Bamboo cloth and some sort of kinda planet friendly epoxy (?) - sort of 'outta the box' nouveaux but could be fun. Mike.

Re: Another Rudder Story
Bob Putnam

06/20/08 #4547

Uni-directional pre-cooked linguini with a carbinera coating works
good.
Bob