Minimalistic cruising multihulls

  • 21 Nov 2018 20:39
    Reply # 6926423 on 6925812
    Deleted user
    Anonymous wrote:
    Anonymous wrote:

    Hi Graham, you must be the same person who I had heard about in Durban, as I had been wondering when seeing your name here.

    I was also surprised to see Graham Cox here on the JRA but alas it is not the same person you would have heard spoken about in Durban. That Graham was famous for inventing the L26 + L36 racing class and was prolific in the boat building and racing scene in Durban, he sadly passed on a number of years ago.

    I wonder how many ex-durbanites we have in the JRA.

    Thanks for that Niccolaas (hope I got spelling right?).... Yep, it was the Graham Cox from the Royal or the Point yacht club that I was thinking about.Never mind, Graham from JRA is the more interesting of the two, and he does know something about proas as well as Junk rig.


    I have added a message to the thread on proas in the General forum, ignorer to explain statements in my above posting,that may have come across as puzzling.


    Keeping coversation 'on topic' is of course the object, and my newbie status here needs to be used as an excuse for bringing up the proa issue, where tacking multi's are now evidently the focus.



    K




  • 21 Nov 2018 19:33
    Reply # 6925812 on 6919593
    Deleted user
    Anonymous wrote:

    Hi Graham, you must be the same person who I had heard about in Durban, as I had been wondering when seeing your name here.

    I was also surprised to see Graham Cox here on the JRA but alas it is not the same person you would have heard spoken about in Durban. That Graham was famous for inventing the L26 + L36 racing class and was prolific in the boat building and racing scene in Durban, he sadly passed on a number of years ago.

    I wonder how many ex-durbanites we have in the JRA.

  • 21 Nov 2018 02:35
    Reply # 6919593 on 6886625
    Deleted user

    Hi Graham, you must be the same person who I had heard about in Durban, as I had been wondering when seeing your name here.

    Jung Jung was found lying in the yard that used to be Jordie's boatyard, down Port road, and there was another hull (probably the sister boat off the same ship) that had been converted into the MFV Bess, which was abandoned near the Bluff yacht club in the early 1980's....so maybe not the boats you had seen near the dry dock

    After losing JungJung and spending a few years between Portugal and Spain(bouncing across the border every 6 months to keep visas functioning, I got tired of the political dodgem game, and wentback to SA when Mandela was released.

    Picking up on an earlier interest in Oceanic canoes, I have been at it (building paddling and sailing canoes) most of the time since, except for other silly things like building cars and houses; based on the misguided idea that it was gainful employment.

    Learning about amphidromic double and outrigger canoes has been an absorbing quest and maybe it will pay off in that the affordability factor slots with the way I started out and plodded on with Jung Jung.

    Certainly the Pahi I am building now, is affordable because of its strange (to the average wwestern mind) configuration.

    A proa like Jzero or Madness is too much of a 'sport boat' for my physical age and condition, yet I am managing to make progress toward completion of this very much more 'primitive type.

    Thoughts of using a junk rig come into play when I have the odd sane moment and realize that I might have to plan around diminished mobility in the future.... right now I am still ok with SUP, but may want a yuloh and a sail that reefs from the mast step, in time to come.

    I realize now that I should have done this message as a word document and attached it, rather than going into the reply box, because I can't see how this reply covers your message....too late now to do anything but post it in case it disapears.

    Nice to have read your post Graham, and hopefully I will be able to clarify the junk rig proaproposal in due course.

    Could be that by using the edit function, some more could be added to the above message..... thanks for the enlightenment about sail dynamics of the twin/biplane Junk rig GGraham. Sure, duplicating hulls and rigs has  a practical result, and a cursory look into even  small one like Miss Cindy shows this, yet the use of una rig Junk has shown itself to be workable by at least one person here in NZ.

    Another junk rig enthusiast has looked at my Pahi and enquired as to whether it would be possible to step a free standing mast.... something I have not spent much tie thinking about, mainly  because it would increase cost and weight over the traditional Oceanic rig.

    Then, as things go sometimes, at a certain moment the penny drops...today being one of them for me about a small junk rigged multi.

     



     

    Last modified: 21 Nov 2018 03:07 | Deleted user
  • 21 Nov 2018 00:01
    Reply # 6918096 on 6917180
    Jeremy Walker wrote:

    First posting here on this forum - as a new member and hope I am getting it right.

    Have been a bit flooded out of my work site and find myself with a little time to write a thought or two.

    Minimalistic and micro gets my attention and the possibility of a very small junk rigged pproa might just fit in here.

    Shunting gets demanding as size increases and I guess this is justification for twin masts and rudders on a catamaran over 30 ft, but getting down to the Miss Cindy size, I am tempted to put shunting design and sailing experience to use.... not quite yet, because a 30+ ft shunting Oceanic Pahi first needs finishing.

    Based on this type of multi, a 16 footer could just have at least as much if not more than a little double hull like Miss Cindy.

    Certainly, a single sail with higher aspect would be up my street, because, admittedly, the twin rig idea puzzles.

    I have spent a few years trying to speak to Pete Hill about this type of rig, but without success and think it best to give up, especially since micro proportions and single handing probably suits my needs and means better.


    Hi Jeremy, Nice to hear from you.  I still have copies of your Jung Jung articles, including the one in Classic Boat, with the wonderful colour photos.  What a charming boat Jung Jung was.  It still walks through my dreaming.  I grew up in Durban (left aged 20 in 1972) and remember a couple of clinker lifeboat hulls that lay around at the Bayhead, near the floating dock, that I regularly visited when I was about 15.  I often wondered if Jung Jung was one of them.  I used to look at them and dream of what I could do with one.  And Jung was one of my favourite philosophers.  I cherish his saying, "Be true to your self and unknown friends will come."  I've tried to live by that philosophy all my life.  The lesson I learned was, you won't find true friends if you spend your life hiding behind a social mask!

    I was always looking hopefully for information that you'd built the lovely cold-molded Jung Jung 11 that you designed after losing the original.  Eventually I saw some postings from you in the Wharram Friends NZ website, so assumed you had gone on to other things.  I think that design concept was brilliant and extremely seaworthy.

    Your Pahi project sounds interesting.  Lovely design.  A mast in each hull seems to work just fine.  The tricky bit is beam reaching, but the resolution, I am told  (I discussed it with Pete Hill and others with the same set up), is to ease the windward sail out a lot, until it is almost but not quite feathering, which spills wind into the leeward sail.  On all other points of sail both sails work independently.  One advantage is the ability to have shorter masts and a lower CE.

    If you set the boat up as a proa then you need the rig to go both ways, of course, and that presents a new set of issues.  I have yet to see a junk rig that can do this and remain practical, apart from little daysailers.  I am not saying it cannot be done, and have spent some time musing on the possibilities.  I'd be fascinated to see if someone could make it work in a 30ft oceangoing boat.  I love Pacific proas, like Russell Brown's, or the 30ft Madness, but I cannot see advantages in embracing the complexity if both hulls are equal. 

    In my saner moments I think a 30ft cat or tri would be the perfect boat for my current lifestyle, cruising the Great Barrier Reef waters here in Australia.   I have been doing it for the last 22 years full time (and 20 years on and off before that) in my 24ft, steel, 5 ton Arion, junk rigged since 2011, and will probably continue to do so until my toes curl up, but if I could I'd move across to a multihull now.  The first boat I built, aged 17, in Durban, was a Wharram Tane called Otaha. Unfortunately I made a mess of it and was dissuaded from setting off for NZ!  I built the hulls of another one in Sydney, then sold them to Leith, who finished it off and sailed it to NZ.  The boat is still in the Hauraki Gulf.

    Good luck, I'd like to see how your project goes.

  • 20 Nov 2018 22:32
    Reply # 6917180 on 6886625
    Deleted user

    First posting here on this forum - as a new member and hope I am getting it right.

    Have been a bit flooded out of my work site and find myself with a little time to write a thought or two.

    Minimalistic and micro gets my attention and the possibility of a very small junk rigged pproa might just fit in here.

    Shunting gets demanding as size increases and I guess this is justification for twin masts and rudders on a catamaran over 30 ft, but getting down to the Miss Cindy size, I am tempted to put shunting design and sailing experience to use.... not quite yet, because a 30+ ft shunting Oceanic Pahi first needs finishing.

    Based on this type of multi, a 16 footer could just have at least as much if not more than a little double hull like Miss Cindy.

    Certainly, a single sail with higher aspect would be up my street, because, admittedly, the twin rig idea puzzles.

    I have spent a few years trying to speak to Pete Hill about this type of rig, but without success and think it best to give up, especially since micro proportions and single handing probably suits my needs and means better.

  • 08 Nov 2018 00:05
    Reply # 6893915 on 6892763
    Anonymous wrote:

    I guess making the overall beam a bit more is not an issue.  Of course in your part of the world you live outside most of the time?  And the large cockpit is ideal.  In my part of the world you need a storm and midge proof cockpit tent!

    Plenty of midges and sandflies here!  And the sun will eat you alive.  Skin cancer capital of the world.  You need to be in the shade at least, if you are exposed day in and day out. Screens are often needed too.  In the tropics, a cockpit roof with removable screens makes sense, sort of a Samoan style house, keep the sun and rain off you but let the breeze blow though.  So an open bridgedeck cat would work, as long as you had a roof over it.  Much better, actually than being stuck below in a sweaty cabin.
  • 07 Nov 2018 13:23
    Reply # 6892763 on 6886625

    I guess making the overall beam a bit more is not an issue.  Of course in your part of the world you live outside most of the time?  And the large cockpit is ideal.  In my part of the world you need a storm and midge proof cockpit tent!

  • 07 Nov 2018 00:07
    Reply # 6892192 on 6886625

    Hi Mark, I have seen this cat in Townsville, and have the free plans from TCP.  It is a very simple and economical boat, if a bit limited by its narrow overall beam and accommodations.  But it definitely deserves consideration as a minimalistic multihull for those with minimalistic budgets!.

  • 06 Nov 2018 14:03
    Reply # 6891283 on 6886625

    How about this

     

    https://www.thecoastalpassage.com/papers/tcp75.pdf

     

    Just love the simplicity of the construction method. 

     

  • 03 Nov 2018 23:55
    Reply # 6887371 on 6886625

    Thanks for that info David.  The Eco 7.5 certainly has a lot more accommodation than the Seaclipper 28.  Also, it will probably sit quieter at anchor in swell-prone bays, which are common in Queensland, despite both amas of the tri being submersed.  They are still veed in section and will depress a little as the swells pass.  Often, when I have been rolling heavily on Arion, with things flying around the cabin if not secured, I have rowed over to a friend's catamaran and was able to sit my cup of tea on the table! 

    And I like the look of the Eco, though my traditionalist friends, who think Arion is as cute as a kitten, are appalled.  I like conventional monohulls with sweet sheers, but have always enjoyed thinking outside the box too.  When I first saw a picture of Jester as a teenager, I was thrilled.

    If I get serious about the Eco 7 I will talk to Pete Hill, given his wealth of experience with this rig.  I was thinking, if the sloop rig has 24 sq metres in total, I might make each sail 15 sq metres, still a smallish and easily handled sail, and reef early.  Make up for not being able to set a screecher!

    But unless I find a buyer for Arion it will remain a dream.

       " ...there is nothing - absolutely nothing - half so much worth doing as simply messing about in junk-rigged boats" 
                                                               - the Chinese Water Rat

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