Helen Chapel:  What the hell 's this ' transponder ' he keeps talking about ?
Fay Schlob Dumbly DeVay Cochran: It 's a transmitter that sends out a constant homing signal so that , in the event of a crash , they 'll be sure to find us .
Helen Chapel: And if we do n't have _ one _ ?
Fay Schlob Dumbly DeVay Cochran: Well , what 's the nautical equivalent of ' needle in a haystack ? '