----- Original Message -----
Sent: Thursday, November 10, 2005
10:11
Subject: Re: [PSUBS-MAILIST] RE: ambient
design query
Dan, I'm interested in window size also. Here's what
Sportsub, http://www.sportsub.com, has
to say about the size and placement of windows in their subs:
Why are there no overhead
or rear facing windows?
Any light that is allowed to enter the cockpit will cause
reflections and actually reduce visibility.
Detail: Most underwater
environments are dimly lit because light filters down from the
surface. This surface light must be kept out of the cockpit
or it will cause reflections. It would be somewhat like
driving a car at night with the interior light on. Anything
bright in the cockpit would be reflected by the front windows, causing a ghost
image to appear in the pilot's field of view.
On 11/10/05, Daniel
Edwards <dan_f_edwards@hotmail.com>
wrote:
Does
any one have info on certification for ambient dry subs. Also I
I
ask this as most ambient designs seem to have steel or fibre glass
hulls
and still have tiny view ports. and since to me the attraction of
ambient
deisgns is the scope for larger less costly complex view ports
and far
greater visibilty I was just wondering why no-one seems to have
done this( I
could well be
wrong)