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Engineering data courtesy of KineOptics
KineOptics Material Data Bookmark Send an E-Mail for a hard copy!
A brief paper on CAD design.
Camera Info about lens threads and registers.
US and British patent numbers and their dates.
Torque Values for Fine Thread Series Steel AN & MS Bolts
Sea water pressure = depth in feet x .445
Fresh water pressure = depth in feet x .432
Average sea water density = .037012 lb / cu. / in.
Average fresh water density = .036127 lb / cu / in.
Quick and easy dynamic pressure calculation:
Dynamic pressure in standard atmosphere = V(MPH)^2 / 391 = pounds per square foot
Dynamic pressure in sea water = V(MPH)^2 / .465 = pounds per square foot
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