[PSUBS-MAILIST] conical port angle

[Sean T. Stevenson via Personal_Submersibles]

Hank - are you talking about a conical frustum viewport / seat combination? If so, two degrees is too loose.  Major diameter of the window should be machined to +0.000/-0.002 *Do (nominal outer diameter), and the included conical angle within +0.25/-0.000 degrees of the nominal value. The included conical angle of the window seat should be within +0.000/-0.25 degrees of the nominal angle.

Sean


On July 14, 2016 5:01:48 PM MDT, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>Hi All, Help!I am allowed up to 2 degrees angular mismatch between the
>port and the seat.  The conical bearing surface is 4.875 inches and I
>want to know how large the gap can be at the outer circumference of the
>port with a 2 degree mismatch.    Hank
>
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