Lt Lee navigated using a combination of dead reckoning (using airspeed and time elapsed between checkpoints to compute position), pilotage (using visible landmarks), radio usage, and celestial navigation. The B-24 had a small Plexiglas dome just forward of the cockpit through which the navigator could shoot his fixes, however Celestial navigation was only used when delivering the aircraft to theater. In combat, bombing targets were approached by pilotage.     The crew's aircraft was "Shot up bad" (James Springer) on thier mission #9 to the railyards at South Station, Vienna, Austria on February 21st, 1945. Lt. Lee was hit in the leg by flak.