It is a solution - with a inner hull made from steel - frames outside
and a removable outer hull from GRP. Make more work to produce but can
have a really nice shape. Often done by deep sea boats.
With a inner hull and a outer hull made from steel and the outerhull
not
removable it is a cheaper solution - and a big corrosion problem..
special in psubs size boats.
Carsten
Jake Colman schrieb:
I just had an idea while reading a cross section book. what about a
sub
with a 4 foot outer hull( made of thin steel or light weight material)
and the a 3 foot inner steel pressure hull. the 6 inch space arround
the 3 foot hull to the outer hull could be used as a balsast tank
while
keeping a very streamlined shape. because the outer hull is not
preasureized you would still only have one through hull connection for
each wire. just another idea to throw out there.