<< The smaller the tank the lower the tensile loads in the tank walls for a
given pressure.
 Pressurize a 747 to 110 psi and watch what happens. In fact just a little
over
 pressure supplied by a small bomb can blow a 747 apart big time.
   >>

There were some pictures of a KC135 tanker on the net, that was being tested
for leaks after a complete overhaul. The mechanic used a nonstandard home
made gage that hung up. The aircraft blew apart aft of the wings. Somewhere
below 50 PSI.
Lynn E. Hanover
lehanover@aol.com

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