Why BuOrd denied the Mark 13 and Mark 14 failures

How deeply did the Bureau of Ordnance deny the Mark 13 and Mark 14 torpedo problems?

Apparently sound calculations and flawed internal tests sustained the denial because the Bureau could not reproduce failures reported at sea.

Calculations and tests that seemed to validate the weapon helped sustain institutional confidence. A fractionally short firing pin is used to illustrate how a small physical defect could escape correct-looking mathematics. Alex argues that the test methodology was flawed and could not reproduce the failures reported by submariners. The resulting inability to repeat the fault helped sustain the Bureau's denial. His firing-pin example is illustrative, without accounting for every defect in the two torpedo types.