(click for larger image)

Artist’s depiction of the five lost TBM Torpedo Bombers

The so-called "Lost Squadron", Flight 19, departed at about 2:10 P.M. from the U.S.  Naval Air Station, Fort Lauderdale, Florida. They were on an authorized overwater navigational training flight. A radio message intercepted at about 4 P.M. that
afternoon was the first indication that Flight 19 was lost. They were never heard
from again. A PBM patrol plan was launched at approximately 7:30 P.M to search
for the missing squadron, but this aircraft was never seen nor heard from after it
took-off. Flight 19 remains one of the great aviation mysteries of the Bermuda
Triangle.

The Martin PBM Mariner seaplane

Flight 19’s scheduled navigation exercise