boat with submarine at bottom

[gonzo]

That is what you asked for

 

[TheBoatVeteran]

What type of wood do you plan to use for the pressure hull? Automobile Glass would be the best for windows as its shatterproof for safety and can be pickdd up cheap at junkyards. The imported cars have quality and you may even find tinted. A nice air filter to recirculate can be made with a simple C02 scubber unit using barbque charcoal and a Lithium Bromide unit using a common airconditioner should be easy to cobble together. And be sure to get inexpensive feed sacks filled with sand as ballest that can be dropped as needed to adjust the depth when diving. Maritime tradition requies a large ArrOghaa horn for the Sub to let boats know when you arrive. If I may suggest you may want to keep pressure units in BARS as psi are smaller and have more numers making them difficut to understand. The BAR units come in Pints and Half Pints wich every Sailor understands . It helps to keep the barnicals off the wood as much as possible while in port.

 

[montero]

Different technical fields have their own conventions regarding units. However, for me, counting zeros is sometimes too tedious.
I remember a pressure of 14 pint in Kent. But I was much younger then.

 

[gonzo]

A cobbled together scrubber would never pass inspection on a passenger vessel. Neither would junkyard glass. They need to either have an engineered design or be certified by a manufacturer.