BOWMAN AEROBOAT 1 Posted byTony Birdon 20 Mar, 2019 07:37
Hi,
A friend has recently bought a Bowman Aeroboar 1 which is a rubber powered launch 32" long and I am going to try and make a copy of it. First a drawing was made from templates taken from the hull. [ Guests cannot view attachments ] After the hull sides were cut they were bent to shape using weights (bricks) after having been steamed. [ Guests cannot view attachments ] The frame spacer and transom were made. [ Guests cannot view attachments ]
I am not very good with computers so this is a bit of a try-out for me using a new system. If I have got things correct I will continue later.
I like your way of bending the sides. I started a Polly Wog a while back, and the sides didn't bend evenly, so I have to start over, and this time I'll use your brick trick.
Hi Bob, I like your way of bending the sides. I started a Polly Wog a while back, and the sides didn't bend evenly, so I have to start over, and this time I'll use your brick trick.
I don't think my brick method will work just by itself. I have built three Poly Wog hulls and I started by getting the wooden sides wet with boiling water then using the bricks the leave it for a couple of days and did the same again but the hull has a very tight hull and the only way I managed to bend it was over a sauce pan of water and slowly bring the ends together using a strong cord. This is best done when the domestic authorities are elsewhere. On the commercially produced Boucher Polly Wog the side were cut as curves and the was no centre frame, it was the Popular Mechanics version that had one. I did a thread on making one of mine at:
Hi,
It is some time since I posted anything in HMEM, for the last couple of months I have been making a copy of a model steam powered boat described in the August 1933 edition of Popular Mechanic...
Home Model Engine Machinist Forum · homemodelenginemachinist.com
I'm using the PM plans, so I have the centre frame, and I did soak things in water; somehow, though, I lost symmetry when I bent the ends together. Guess I'll just have to be more careful.