[PSUBS-MAILIST] k250 size

[Daniel Lance via Personal_Submersibles]

Just so it's clear....66 inches (167.64cm) is the length of just the
pressure hull .

On Mon, Aug 7, 2023, 12:39 PM Daniel Lance <lanceind at gmail.com> wrote:

> Sean ,
> You're  correct . A 36" diameter  2 to 1 elliptical head is 9 inches
> (22.86cm)deep. I made the mistake of referring to the K250 drawing . I
> should know better ...both the K250 and K350 drawings are full of mistakes
> and inaccuracies. I did what I should have done in the first place....I
> went out and measured a head on my K350....9 inches ! Imagine that !
> So that revises down the overall length of a K250 hull to 66inches
> (167.64cm).
> Dan
> On Mon, Aug 7, 2023, 12:02 PM Sean T. Stevenson via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> On a 36" ID cylinder, a mating 2:1 semi-elliptical head would be 9" from
>> the inside center of the head along the major axis to the plane at the
>> curvature break at the end of the cylinder. If you're measuring (or if the
>> plans show) a 14" depth of head, that would seem to indicate either that
>> the head is of a non-standard elliptical form, or is torispherical (not
>> elliptical), or is simply manufactured with a substantially longer (5")
>> length of straight flange than is specified by the rules.
>>
>> I am curious to know which?
>>
>> Sean
>>
>>
>>
>> -------- Original Message --------
>> On Aug. 7, 2023, 09:16, Daniel Lance via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>
>> Rapheal ,
>> The cylinder section of the K250 hull is 48" long ( approx. 121.92cm) X
>> 36" (91.44cm) in diameter .Each elliptical head is approximately 14"
>> (35.56cm) deep  X  2pcs  . For a total pressure hull length of
>> approximately 76" (193.04cm).
>> Dan Lance
>>
>> On Sat, Aug 5, 2023 at 1:08 PM Raphael SOULIAC via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>> Hello, quick question for the k-250 owners/builders. What are the
>>> dimensions ( specially the length) of the pressure hull ? Thanks
>>>
>>> Raphael
>>> _______________________________________________
>>> Personal_Submersibles mailing list
>>> Personal_Submersibles at psubs.org
>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>>
>> _______________________________________________
>> Personal_Submersibles mailing list
>> Personal_Submersibles at psubs.org
>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20230807/1f9c865d/attachment-0001.html>