Re: HP, weight and visability

[Martin Sanderse <sanderse@ingenuitygroup.com>]

Jon Hylands wrote:
> 
> On Fri, 24 Apr 1998 19:23:07 -0700, Martin Sanderse
> <sanderse@ingenuitygroup.com> wrote:
> 
> > One disadvantage of the double hull used for streamlining is that there is a lot of mass
> > (in this case water) within the total hull envelope that the motors have to start and
> > stop.  Thsi would imply either a larger motors and props to overcome the inertia, or put
> > up with sluggishness.
> 
> Not necessarily. If most of the space between the hulls is filled with
> non-compressible foam, then it's not a problem...

Well, the only way to get the foam or microballons or whatever to sink is by adding 
weight, so I can restate the case by saying that the lead or hull weight you had to add 
to get the sub heavy enough to sink the foam  . . . . 



> 
> Later,
> Jon
> 
> --------------------------------------------------------------
>    Jon Hylands      Jon@huv.com      http://www.huv.com/jon
> 
>   Project: Micro Seeker (Micro Autonomous Underwater Vehicle)
>            http://www.huv.com

-- 
Martin Sanderse
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