Though the IX Troop Carrier Command did not use the C-46 depicted here until after its D-Day drops, this picture showcases the Pathfinder equipment used on the C-47s. The larger radome under the fuselage is the SCR-717C navigational radar. The antennas on either side of the nose are for the Rebecca receiver.
Credit:
National Archives at Boston, RG 227, Records of the Office of Scientific Research and Development, MIT Radiation Laboratory, Group 35 Photos, Box P-D 036.