[PSUBS-MAILIST] k250 size

[Sean T. Stevenson via Personal_Submersibles]

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 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
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