Subject: Re: [harryproa] Teeny tiny camper proa without pop up
From: "Rob Denney harryproa@gmail.com [harryproa]" <harryproa@yahoogroups.com.au>
Date: 10/6/2016, 1:16 AM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 

My 25'/7.5m Elementary weighs about 120 kgs with the schooner rig, perhaps 100 with una rig.  So a 20' version would fit your weight and speed requirements.  Making the ww hull big enough to sleep in is not a big deal, making it big enough to cook and 'live' in is a bit trickier.  Maybe opt for a tent on the deck and keep the ww hull for storage.  

100 kgs is a lot to drag.  An easily removed rig would lighten the load.  

I used a sculling oar on the first harry (16' ply with dory hulls and wooden beams) and it was fairly hard work.  However, simple is king in a boat like this, so it would be worth revisiting.  In which case a bidirectional lee board would be simplest to build.  Alternatively, the beam hung rudders/no board solution on harriette (harryproa for kids) also worked pretty well, but were not lifting for shallow water.  

The hulls would be very simple to build, with everything included in the infusion, which is a big advance on how I did the Bucket List hulls.  Whether you have 1.5 or 2 hulls won't make a lot of difference.  it is easy enough to build a second windward one using the lee hull mould materials (cut the middle section out and rejoin the ends) if you feel it will be lighter/quicker.

Easiest rig would be a windsurfer type rig secured to a stub mast.  I would not use a windsurfer rig as they cannot be reefed or reduced on the boat.  

Allowing the base to 'float' gives a lot more balance options, at the cost of more strings to control it.  An added benefit is the entire mast can be raked to leeward to self right the boat if it capsizes.  And taken off at night and left on the beach.  

I have got pretty keen on these recently along with simple ways to build telescoping masts.  While I wait (interminably!) for the Bucket List mast and beams to be built, I am putting together a 3 piece telescoping mast for Elementary.  More as it happens.

rob



On Wed, Oct 5, 2016 at 2:13 AM, adriankevans@yahoo.co.uk [harryproa] <harryproa@yahoogroups.com.au> wrote:
 

So here's an idea.  First, To give you an idea of where I'm coming from, this is (one of) my current boat(s), a 16ft, 100kg trimaran in ply, designed for camping and beach hopping on the west coast of Scotland.

It will do about  11 or 12 knots before I start breaking things. Light, small, unstayed rigs.

 

I would like to be able to sleep on board, but don't want a boat to be any heavier, and lose the ability to lift or drag it up a beach easily.

 

Be great to go a bit faster, too.

 



So…

 

Take  the 20ft windward hull from Expeditionarry and make it the leeward hull. Possibly reduce the length to 18ft. Make a bit of a hump/bubble in the middle of the hull over the head ends of the bunk and the hatch. (clear hatch, plus portholes to avoid claustrophobia.) I reckon I want lying down headroom and width of about 800-850 for comfortable reading in bed, and headroom sitting on the end of the bunk

 

The weight of a stretched canvas bunk, and a sleeping bag doesn't add much to the leeward hull weight. Possibly a little porta potti  to pull out from under the bunk.

 

Make a 12 ft windward hull with an in hull open cockpit - maybe like the one recently designed for bucket list.

 

Storage for food, water, gear under seats and in ends of ww hull.

 

Fold down/ loose fit table between seats with clips/ holders for jetboil/stove/cookbox

 

A pram hood cuddy over the cockpit  in the ww hull and the hatch on the lee hull, which could be joined by a simple tunnel tent over the deck/tramp.

 

Mast(s) *off centre*  to the side of the lee hull, to keep the cabin clear.


So, a camper which can have a large deck tent, but still sleep2 under cover in cabin without pitching it.


Light enough to pull up the beach, but anchorable/moorable in sheltered waters

 

Would this be achievable at 100kg or there abouts, in vacuum/intelligent infusion?

 

Thoughts?


Thanks.


Adrian


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