If a person was to convert a 13B that happened to be sitting around to
P-Port, how does one seal around the P-Port tube that goes into the rotor
chamber.  The area where the tube goes through the housing is a water
passage. I suspect the answer is "JB Weld" or some other epoxy. But will that really
hold up in the long run without developing even little cracks that water
under pressure won't go through?

Thanx,
Joe Hull
Cozy Mk-IV #991 (In Phase1 Flight Test - 40.2 hrs flown) Redmond (Seattle), Washington