Illustrated Custom Boatbuilding by Roberts-Goodson Bruce;

Author:Roberts-Goodson, Bruce; [Roberts-Goodson, Bruce]
Language: eng
Format: epub
ISBN: 1507654
Publisher: Bloomsbury Publishing Plc

PLYWOOD BULKHEADS

Intermediate and partial bulkheads should be built of plywood. You can use any suitable grade that has a marine glue line. One way to test the durability of plywood is to boil it for 8 hours as this will give you a clear indication of its quality. Plywood provides stiffening and strength in many directions and will keep the weight of the interior down. Plywood bulkheads should be fitted with the tops left square, so the areas above the deck can be marked and shaped at the same time as the metal bulkheads. If your plans do not state how thick the plywood bulkheads should be, keep in mind that the adjacent furniture and joinery will add stiffness and strength.

The transverse plywood bulkheads will need to be bolted in place, either to existing metal frames or to short sections of framing material commonly known as tags. The tags are 6in to 12in (150–300mm) long and are spaced at the same intervals as their length. They’re welded to the hull to accept the bulkhead, and are useful if a transverse bulkhead is located between frames or adjacent to a frame. It may be possible to alter the bulkhead’s location a small amount by bolting it to one side or other of the frame, but be careful not to create a space such as a berth that is too small or too long. A better solution would be to fit tags between the frames, which should provide more than adequate strength when the bulkhead is attached. Don’t forget to pre-drill them at 4in to 6in (100–150mm) centres to accept the bolts that will attach them to the bulkheads.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.