Boat Builders Central has a 12' runabout , scale down 10% in length and call it good , or do a little redesign .
I messaged Bruceb , this will be the best bunch to put your fathers boat on the water .
Post this in the multihull section and you should get some feedback
While I have not had to deal with NA,s I did deal with plenty of Engineers . If the work of two Engineers don't mesh , like TANSL said , you need...
Again , look at the displacement of the DH430 . Inflation has been about 20% over the past few years in the U.S , not sure about the U.K , what...
Andrew , you cant just look at length , you need to decide how much displacement you need in the boat , and to a large extent you will pay for the...
Andrew , Dudly Dix would be a good choice , but the DudlyDix 430 is not lighter than the 41' Horstman , unless there is another Dix Harvy plan...
When I was going to build I first researched Trimaran -v- Catamaran , I emailed Richard Wood but decided on a Tri because I was building around...
Andrew , in my view well designed plans don't become obsolete if they fit your criteria , they can be modernized somewhat or a lot by using new...
Scully's out of Morgan , La has a good web site , you can find lots of examples of boat styles that might suit your needs . We ran 28' Scully...
Don't rule out a small push boat ( tug ) like bridge companies use , you can push a small barge with ramps , or a 90 footer with a 100 ton crane...
I will throw in Ed Horstman designs again , $800 for the 34 foot catamaran with 3 doubles and designed for both Foam and ply , both included ,...
build a smaller boat , find a tri or cat in the low 30' range and trim down your requirements .
You have a good looking boat , few people can say they built a 60 footer .
The designer should have scantlings for either foam or ply . From one of Ed Horstman,s book,s . to convert Cold mold plywood to foam fiberglass...