Exterior antennas - left side
The majority of the antennas on the Enola Gay are shown in
Exterior antennas - right side,) but
there are two which are not seen in that view.
Port side antennas
The IFF (Identification, Friend or Foe) antenna is part of what is called a transponder system. It receives
an electronic query from a radar scanning the plane and responds with a set of codes, identifying the aircraft
as friendly. Failure to reply would classify the blip as "foe" and subject to interception.
The other antenna, near the tail, is actually another wire antenna about six feet long, and is used in
conjunction with what is called the "radio range" system. A closeup is shown below. A special marker
beacon receiver was used to indicate the moment of flying over a beacon, which is the white cone antenna
commonly seen at many airports today. This provided a precise location to signal the pilot of a navigation
point when following the other component of the radio range - a sort of "pathways in the sky" system.
Port side marker beacon receiver antenna