Re: [PSUBS-MAILIST] Hull Penetration and Reinforcement

[Jon Wallace <jonw@psubs.org>]

Alan,

I have copies of K250 hull #106 certification by ABS (1970), and K350 by 
Lloyds Register of Shipping  (1980), that George sent me a number of 
years ago.  So both designs were certified in their time.  I checked the 
2010 rules for penetration reinforcement against the 2002 rules and the 
formulas/text were identical.  I believe Cliff designed the hull 
calculator spreadsheet from the 2002 rules.  According to the spread 
sheet, Kittredge's hull construction is still more than adequate for the 
operating limits he advertised them at, including a 2:1 safety margin.  
In terms of hull penetrations, the plan specs could be used to run 
through the various 2010 formulas to determine their adequacy given 
todays rules.

Jon



Alan James wrote:
> Hi,
> I'm wondering wether the K250 / 350 plans meet ABS specifications as 
> far as hull
> construction is concerned. I have a diagram of the K250 dome / hatch 
> construction, wich I'm
> looking at using as a guidline. Sorry to hear about the calculation 
> stuff up Frank. I think thats pretty
> much parr for the course when attempting something new, especially 
> when you're thinking outside
> the box like you are, things never seems to go smoothly.
> Regards Alan




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