Subject: Re: [harryproa] Bidirectional cockpit layout
From: "Rob Denney harryproa@gmail.com [harryproa]" <harryproa@yahoogroups.com.au>
Date: 5/27/2018, 10:54 PM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 

On Sun, May 27, 2018 at 5:16 AM, realink@iprimus.com.au [harryproa] <harryproa@yahoogroups.com.au> wrote:

A lot of good stuff, all of which i agree with. 


On Sun, May 27, 2018 at 2:13 AM, '.' eruttan@yahoo.com [harryproa] <harryproa@yahoogroups.com.au> wrote:


It makes sense for Australians to design boats without enclosed cockpits, but what excuse does Steinar have?

​Shade and warmth are essential, but so is being able to see the sails, waves, horizon, stars at night and the sun when it is not beating down. The best way to achieve this on bigger boats is the rotating pedestal on the C50 and 60. See Rudders and Steering at http://harryproa.com/?p=1749.   Doug's solution on his El showed a solution for smaller boats.  The 40 is a crossover and what is chosen depends on how the boat will be used.  

Steinar and I are not big fans of sailing light weight boats in fresh breezes without being able to feel the wind on our faces.   Sailing from inside in these conditions would not feel safe.   Solutions would include: 
deep reefing the sails and letting the autohelm handle it with regular checks to look around;  
reaching fast to get sea room, then dropping the sails, lifting the rudders and waiting until the weather clears (good books, good company and a wide, shallow raft make this pleasant); 
putting up with it helped by regular cups of hot soup and a warm cabin at the end of it.  


|​There are numerous solutions. Whipstaffs, tillers, wheel(s) are all feasible. As the rudders can be moved fore and aft for balance, tillers are possible in much longer boats than normal.

Are the rudders moved for and aft to get balance while sailing, or beforehand? I am slightly familiar with a small cat tiller and kick up. But I was not aware of a tiller adjustment for balance while under way.

​The rudder angle (on two way rudders) is preset and adjustable, but cannot be changed while moving.  It changes automatically when you shunt.​


|​They are the simplest (assuming bidirectional rudders, so minimal movement), but the extensions are fragile. ​

The tiller extensions are fragile? Like, they can break in use? Or if someone trips over them? I remember reading Richard Woods suggesting keeping some 3/8" socket wrench universal joints for fixing tillers.

Tiller extensions seem like a warm weather multihull standard. But I am having trouble see them as great in a cold weather sudden squall or with guests walking about enjoying a ride, like the blind date video.

​They can be arranged so they are not in the way (steering position near the beam), the other one locked when people are wandering around, or used from the cabin when it is raining.    Socket wrench universals would be hard work to install (drilling holes, making tillers and extensions fit).  Pvc pipe and carbon tow makes a much easier, more durable, rust free solution. 


|​Whipstaffs are a single spoke wheel, with varying leverage possible. Also simple.

I was thinking of the reduced square footage needed to be dedicated to control for a small HP. I imagine the loads are light, so wont need leverage, just a small amount of friction? Perhaps both could be placed almost directly beside each other? 

​Whipstaffs have a lot going for them, particularly with 2 way rudders where the movement required is not large.   Actually, they are pretty good for one way rudders as well, as the large movement part is lightly loaded, mostly automatic once the boat starts moving post shunt.  ​
 


|​An Ex 40 does not have the space for a wheel flip, but it would be easy enough to sit in the cabin and steer with the tiller extension.

And close the door, to keep the saloon warm?

​see above re seamanship​




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Posted by: Rob Denney <harryproa@gmail.com>
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