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misconseption2348

Member Since 14 Jan 2004
Offline Last Active Yesterday, 04:05 PM
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Posts I've Made

In Topic: Henderson 30?

14 February 2014 - 08:32 PM

 

 

What kind of vangs are other hendos using. We have a soft one but are looking at going to a ridgid. Any thoughts?

I have a soft vang. I was going to replace with ridgid, but my boom has the IMS holes cut in the boom to make it lighter. I didn't want to bend the boom, so just went soft.

How does the rigid boom make it bend more?  Isn't it just a spring pushing the boom up so it doesn't sag down?  If you remove the solid piece you still have a soft cascade providing all the power...

Mainsheet pulls down and ridgid vang pushes up......what do you think is going to happen?

You reduce the pressure on spring/air/etc...  If you are pulling that much load against the vang ram, you are not getting enough leech tension anyways.


In Topic: Henderson 30?

14 February 2014 - 06:50 PM

What kind of vangs are other hendos using. We have a soft one but are looking at going to a ridgid. Any thoughts?

I have a soft vang. I was going to replace with ridgid, but my boom has the IMS holes cut in the boom to make it lighter. I didn't want to bend the boom, so just went soft.

How does the rigid boom make it bend more?  Isn't it just a spring pushing the boom up so it doesn't sag down?  If you remove the solid piece you still have a soft cascade providing all the power...


In Topic: Overlapping Genoa vs. Code 00 in handicap racing

09 December 2013 - 10:16 PM

It is a bit of a loophole, but there are some physical limitations to what you can build as a sail.  Take the frac rig example. You cannot have a fixed stay going to the masthead, so you are running a high tech line up the luff of the sail.  It is difficult to get/maintain enough luff tension to keep a proper flying shape.  Halyard locks help, but add other complexities.  On a modern race boat you go from a 5-7dg sheeting angle to maybe 12?  Not ideal for going upwind.  A 75% midgirth is a lot of roach to try and support, this creates it's own set of issues.  

 

If you choose to build a sail that id more like a MH Genoa, smaller midgirth.  You take the penalty of having this measured in as your largest jib/genoa.  Your J is extend to the point that you are flying it from, the luff length increases etc.  You end up taking a massive penalty for a sail you use maybe 10% of the time.  AC 45/72, IMOCA, and VO70s all have tweaked rules to allow these types of sails.  Most measurement rules lag behind new ideas and technology and struggle to rate them.  IE the quad sail.


In Topic: Columbia 32

04 December 2013 - 08:13 PM

^^ How likely is it that the bend in a metallic rudder stock would be more than a few degrees?  How likely is it that the boat would actually being carrying an emergency rudder?

Ask Iker and the rest of the Telefonica team...