Wharram Builders and Friends

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Dean Wilkerson
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  • Arthur Gottschalk
  • Iain & Cherry Mae Cairns

Dean Wilkerson's Discussions

Hobbyhorsing
19 Replies

     Any boat will hobbyhorse in some conditions, and you can't always change course to get out of it.  Factors such as length compared to wave period, rocker, weight distribution, and longitudinal…Continue

Started this discussion. Last reply by Dean Wilkerson Dec 23, 2019.

Wings
2 Replies

Having an interest in trimarans also.....  The question of "wings" comes to mind with regard to the limited internal space in some Wharrams.  The Tangaroa in particular appears like it would be…Continue

Started this discussion. Last reply by Dean Wilkerson Sep 17, 2019.

free standing masts

My interest is in junk rigs, which have progressed a long way since James decided that they were unsuitable for Wharrams.   Instead of the flat junk rig that was pretty universal in those days, we…Continue

Started Feb 28, 2019

Rigid 37 footer??
18 Replies

I was looking at Catamarans for sale, and recently found an interesting "Custom Wharram Design 37" that appears to be rigid.   Anybody know the story if this boat?   It can be found here at the link…Continue

Started this discussion. Last reply by Arthur Gottschalk Sep 11, 2019.

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Latest Activity

Dean Wilkerson replied to Dean Wilkerson's discussion Hobbyhorsing
"     Ditto the Merry  Christmas to all!!    I will be spending it alone as I have for many years.  Family  is 800 miles away, but I prefer a quiet Christmas.   I'll call my mother (87)…"
Dec 23, 2019
Reuben Filsell replied to Dean Wilkerson's discussion Hobbyhorsing
"Immersed transoms are only a penalty at very low speed, if the boat is moving quick enough and the flow breaks away then there is no consequence. What that speed is for various hull forms I'm not so sure about. From my observations of a few…"
Dec 22, 2019
Dean Wilkerson replied to Dean Wilkerson's discussion Hobbyhorsing
"I agree that chopping the stern for a transom wouldn't work well........... But that's because you will have a dragging transom.  For a mod like that to work, it would have to be recontoured so the transom was at or slightly above…"
Dec 22, 2019
boatsmith replied to Dean Wilkerson's discussion Hobbyhorsing
Dec 22, 2019
boatsmith replied to Dean Wilkerson's discussion Hobbyhorsing
"If you chop off the stern of a Wharram and install a transom you will have a bastard child of no value. The boats do pitch more than many other designs. It also won't get shoved into a broach by large following seas as easily as a transomed…"
Dec 22, 2019
Dean Wilkerson replied to Mawibo's discussion Bamboo decks
"Unique!   It doesn't look comfortable on bare feet though.  Bamboo is amazing material.  My personal direction is toward solid decks aft (cockpit area).  Bamboo has a low rot resistance compared to cedar or…"
Oct 27, 2019
Allen Bosely replied to Dean Wilkerson's discussion Hobbyhorsing
"Dean have you seen this thread?  http://wharrambuilders.ning.com/forum/topics/adding-winglets-to-my-tiki-26 Cheers, Allen "
Oct 21, 2019
Reuben Filsell replied to Dean Wilkerson's discussion Hobbyhorsing
"And it could possibly be used as a step for swimmers. Win win win."
Oct 10, 2019
Dean Wilkerson replied to Dean Wilkerson's discussion Hobbyhorsing
"Ruben:     I like the foil concept... I've toyed with the idea before.   The useful range of angles of attack for the foil you are using, if I read the chart right is about 8 deg either side of being in line with the…"
Oct 9, 2019
Reuben Filsell replied to Dean Wilkerson's discussion Hobbyhorsing
"Hi Dean, My understanding of the rationale behind the canoe sterns is that these designs are primarily for tradewinds sailing, i.e., downwind, as I understand it the idea is that the canoe stern sinks into the following wave rather than be lifted by…"
Oct 9, 2019
Dean Wilkerson replied to Dean Wilkerson's discussion Hobbyhorsing
"Ruben:       The sponson added to the inboard side of the hull could incorporate boarding steps, functioning like a transom with steps.  It's main function being to add displacement above the WL, and secondary…"
Oct 9, 2019
Reuben Filsell replied to Dean Wilkerson's discussion Hobbyhorsing
"D.W. I take it your sponsons are to retrofit an existing boat rather than a new build, in which case I'd be inclined to put a swept back horizontal foil on the bottom of the rudder skeg set parallel to the waterline, such a foil would not only…"
Oct 8, 2019
Dean Wilkerson replied to Dean Wilkerson's discussion Hobbyhorsing
"I misunderstood your reply obviously..... What is shown in the photo has no resemblance whatsoever to what I was suggesting, which was a sort of pod steamlined, and added onto the inboard side of the  stern above waterline in such a way that…"
Sep 25, 2019
Ricardo Aráoz replied to Dean Wilkerson's discussion Hobbyhorsing
"Sorry, I must have messed up my meaning. My objections were not directed against transom sterns but against transom sponsons as illustrated in the picture Levi Verwoest posted."
Sep 25, 2019
Dean Wilkerson replied to Dean Wilkerson's discussion Hobbyhorsing
Sep 25, 2019
Ricardo Aráoz replied to Dean Wilkerson's discussion Hobbyhorsing
"Have you people considered the stress those sponsons will transmit to the hull in a seaway? And what about slowing recovery after submersed? I wouldn't like that. Dean, if you'd prefer transom stern you might look at Richard Woods designs…"
Sep 24, 2019

Profile Information

I am:
Just Looking
What boat (s) are you building or do you own?
Homebuilt junk rigged canoemaran
Country, City, and State?
Montana

Comment Wall (2 comments)

At 8:49am on March 23, 2019, Maris Ahmed said…

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At 7:29pm on April 8, 2019, Iain & Cherry Mae Cairns said…

G'day Dean, unfortunatley this did not happen with the Teheni hulls. The project stood to long and got wet rot in the hulls. I am in the process of buying a new boat also in my picture albums ORO with a center cockpit, this has no mast so the intention is to Junk Rig her. As original plan. I will keep an eye out for your Build as well. Fair winds.

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