The Maxwell 2 Man dry sub is 5ft in dia. and is constructed with two #6
dished and flanged heads bottom is1/2" top 5/16. It had a 10" high steel 1/4"
shell plate for the side and two hatch towers with plastic domes on top of them.
A 16" pipe pass though the hull front and bank as a ballast tank. It was
tested to 66 ' with normal dives to only 30' . I don't know if
you can still get the plans but the address was , Maxwell's Sub 538 Ferguson
Humble, TX 77338 cost $20.00
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