Re: ABS/Lloyds certification

[Dick Morrisson <rmorrisson@unidial.com>]

Phil Nuytten wrote:

> Hi, Vance:
>         Actually, our experience with ABS/Lloyds has been the opposite of
> your speculation; Lloyd's favor test - ABS favor paper.

The ABS route could be good then for the engineer/home builder who has the time
to document the calculations thoroughly but would like to minimize the leased
time at test facilities, yes/no?

> As far as Agency certification costs:  - about the same. Very
> different methodolgy, though, so the actual costs could vary considerably,
> depending on your existent in-house capability.( Engineers, own
> pressure-test facility, etc.)  Not cheap, though . . .I suggest that the
> psubbers who say they plan to 'get ABS'  need to closely study the initial
> requirements and then the periodic cost of keeping the boat in class. It
> depends entirely on what you plan to use the sub for . . .own use - sell to
> others - lease services with your crew - lease bare-boat, etc.  insurance
> MUCH more dificult/costly on unclassed boat.

So what would you recommend for the home builder/designer/engineer type who
wants to build his own one person sub?  Would the ABS provide a design check
and prelimenary approval of the intended fabrication process for a fee?  Or
would they insist on being able to oversee the whole operation before starting
the check?  I am not looking to cut corners on the materials, design, welding,
or proof test, just the associated costs of the extra set of eyes on site.
Also, what are the minimum requirements an insurer will likely require for a
personal sub.  If it is for personal use only does it need full and ongoing
class certification?

I'd love to come up and discuss this sort of thing personally if you have some
time to spare around the end of the week.  Either way, I appreciate your taking
the time to share these details.

Thanks,
Dick Morrisson
Kent, WA