Technical, Techniques, Hints, and Tips > Other Technical Questions...
Planking or an alternative way to cover the hull.
Rodgearing:
Thanks for all your responses.
Balsa wood blocking looks like the route to go.
Might give that a go especially the front and rear ends.
With the balsa wood blocking as the way to go what size balsa wood would you suggest (thickness)
Thanks
Aye Fred
grendel:
on my boat I steam bent the planks, clamping them to the hull, then next day gluing that plank and steaming the next on the other side, always start the bend at the point with the biggest curve.
Colin Bishop:
--- Quote ---on my boat I steam bent the planks, clamping them to the hull, then next day gluing that plank and steaming the next on the other side, always start the bend at the point with the biggest curve.
--- End quote ---
Yes, that's the 'proper' way to do it, especially if the planking will be visible but it can take a long time! Most people won't have the patience, particularly if the object is to create a 'shell' hull which will be painted. I generally favour what I call 'composite construction' whereby the hull is made up of a combination of bread and butter, sheeting, planking and blocks as is appropriate to the shape of the model.
My liner Miltiades hull features a bread and butter base for the turn of the bilge, sheeted midship sections with planking fore and aft except for the counter stern which employs balsa blocks.
Klunk:
Always infill between the bulkheads with polystyrene foam (not expanding). Once dry, sand to shape then cover with fibereglass an resin, then pour acetone inside on the foan to melt it. Messy though!
JimG:
--- Quote from: Klunk on January 03, 2022, 04:48:12 am ---Always infill between the bulkheads with polystyrene foam (not expanding). Once dry, sand to shape then cover with fibereglass an resin, then pour acetone inside on the foan to melt it. Messy though!
--- End quote ---
If you want to go this route and intend to use polyester resin then the foam must be well sealed and coated, generally with paint. Otherwise you wont need to add acetone to dissolve the foam, the resin will do this while glassing it. Using epoxy resin stops the need to do this as it doesn't dissolve foam.
Jim
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