BlueLancer
Well-Known Member
hi my first post can anybody recommend a really good book on repair of double diagonal planking
double diagonal planking
- Thread starter BlueLancer
- Start date
burgundyben
Well-Known Member
Not specifically about double diagonal but John Scarlett's book is very good.
I think the key issue with repairing double diag is the area of outer planking you need to remove in order to get to the inner planks.
Some interesting pics on the Newsons website of repairs to DD on quite major scale, look for Spitfire and MASB32
I think the key issue with repairing double diag is the area of outer planking you need to remove in order to get to the inner planks.
Some interesting pics on the Newsons website of repairs to DD on quite major scale, look for Spitfire and MASB32
burgundyben
Well-Known Member
Tranona
Well-Known Member
Welcome to the forum.
Don't think there is any book on the subject as it is a really minority interest. If it is "traditional" D/D that is timber strakes set at angles to eachother with a waterproof membrane such as calico in between, then repairs are "simple" carpentry. The Newsons pictures give an idea of what is involved.
The job, however may not be easy because of the amount of removal of the outside skin to get at the inside. Remember the method was used because it was a cheap and easy way of building a large hull, but little expectation of a long life!
If it is "modern" costruction - cold moulded with either resorcinal or epoxy and D/D veneers then it is worth talking to Wessex Resins as they have material on repairs using West sytem. The Gougeon Brothers book also has good material on building using this method which helps understand what is involved in repairs.
Hope this helps.
Don't think there is any book on the subject as it is a really minority interest. If it is "traditional" D/D that is timber strakes set at angles to eachother with a waterproof membrane such as calico in between, then repairs are "simple" carpentry. The Newsons pictures give an idea of what is involved.
The job, however may not be easy because of the amount of removal of the outside skin to get at the inside. Remember the method was used because it was a cheap and easy way of building a large hull, but little expectation of a long life!
If it is "modern" costruction - cold moulded with either resorcinal or epoxy and D/D veneers then it is worth talking to Wessex Resins as they have material on repairs using West sytem. The Gougeon Brothers book also has good material on building using this method which helps understand what is involved in repairs.
Hope this helps.
Bajansailor
Well-Known Member
Re 'modern' construction - Ian Nicholson's book 'Cold Moulded and Strip Planked Wood Boatbuilding' is pretty good.
Altho it looks like this book is now out of print, and second hand copies are hard to come by, as the few on Amazon are rather expensive -
http://www.amazon.co.uk/s/ref=nb_ss_w_h_...amp;x=0&y=0
Altho it looks like this book is now out of print, and second hand copies are hard to come by, as the few on Amazon are rather expensive -
http://www.amazon.co.uk/s/ref=nb_ss_w_h_...amp;x=0&y=0
angelinalove
New Member
thanks for sharing the info.
DownWest
Well-Known Member
Weric, who posts here, is restoring a 16ft ex Navy boat. DD bottom, clinker above the chines. As it is a small boat and been out of the water for many years, he has effectivly converted the classic style DD to cold moulded.
A
A
alan006
Well-Known Member
I've just had a look at Bergendy Ben's website and it shows a very good series of photos of a professional repair on a double diagonal hull. He has modestly not made a big deal about this but I think it shows how to do it very well.
By the way, I have never met Ben and have no connection in any way with him. /forums/images/graemlins/smile.gif
By the way, I have never met Ben and have no connection in any way with him. /forums/images/graemlins/smile.gif
BlueLancer
Well-Known Member
thanks to all for the replies very useful
SunyBay
Active Member
Depending on the type of repair, there are ways to do it without having to strip off several planks. If, for example, it's a small area, an easier method is to cut out the offending area and put a Dutchman in and then add a third skin on the inside of the hull (with liberal use of epoxy! /forums/images/graemlins/grin.gif). Of course, if the damage is more extensive, then there's not much choice, I suppose. And also if your hull is varnished, there's no other choice but to take off lots of planks as well. /forums/images/graemlins/grin.gif
I'm not sure I completely agree with Tranona saying:
Remember the method was used because it was a cheap and easy way of building a large hull, but little expectation of a long life!
After all, the old lifeboats were built using the double diagonal techinque, and cost a lot of money, and certainly weren't expected to have a short life - there are many lifeboats out there that are still in excellent condition.
I hope you manage to get it sorted, stevetock.
I'm not sure I completely agree with Tranona saying:
Remember the method was used because it was a cheap and easy way of building a large hull, but little expectation of a long life!
After all, the old lifeboats were built using the double diagonal techinque, and cost a lot of money, and certainly weren't expected to have a short life - there are many lifeboats out there that are still in excellent condition.
I hope you manage to get it sorted, stevetock.
