Ama shaping

Four hours of sawing, power planing and long board sanding later and it looks about right.  The sharp edges will be rounded to take the fiberglass.  The sanding is done with very coarse 40 grit paper to reduce the possibility of delamination later.  You sand for fairness but not smoothness.

There is an excellent resource on shaping and glassing polystyrene surfboards here:
How to build your first surfboard.
And if your really serious, you'll want to read Burt Rutan's "Moldless Composite Aircraft Construction"


  1. Looks good! What are the dimensions?

  2. The ama is 16' (4.8M) long, 10" (250mm) wide and 12" (300mm) deep. This should be enough to support a body that needs to crawl out there for some reason.

  3. Hi Gary
    Been keeping an eye on your new boat , looks great, I'm really interested how it goes compered to your other designs. Also just bought your book and am looking to build a Wa'apa early next year. Have a good spring

  4. So that's the origin of Poly Nesian!

    Go Gary go.

  5. Aloha Gary, have you seen this?
    Like the ama constructed in your book but slightly different...
    Can't wait to see the finished va'a.


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