I have personnaly dived in a 40 sits tourism sub-marine in monaco , the sub hull was totaly made in a transparent resin (very thick), so i see no reason why a sub could not be made in a plastic material.
---it is probably cast acrylic. As far as I know exists no clear resin.
On the other hand i could note that this kind of building requires bigger means than the traditional stell hulls, it cant' be done in a small garage, requires big moults , amtmosphere control (humidity and temperature).
Steel or GRP; I think the same workshop space is required. but you dont wake up the neighburs with the angle grinder.
Personnaly i am really interrested in the result cause i would like to built an un motorized sub five meter long designed to welcome divers for 4 days with the possibility to reduce the pressure up to surface pressure at the end of stay.
--Do you have a drawing?(post to moki) what hull diameter. It schould have some comfort for a long deco stay.
or maybe am I a stupid newbie dreamer that has nothing to do here ??????
--No
regards, Emile
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