re-entering spacecraft or satellite and used on aircraft
    prior to the deployment of the main parachute.
dropline   On an aircraft carrier, a row of orange lights
    extending vertically down the stern from the centerline,
    which enables the pilot to make adjustments in lineup on
    final approach.

Eagle    F-15.
ECM   Electronic Counter Measures -- Actions taken to
    prevent or reduce an enemy's effective use of their
    electronic systems.
electro-optical view   A cathode-ray display screen
    consisting of a series of  focusing lenses, a vidicon tube,
    and a transmitter.
elevon    An airplane control surface that combines the
    functions of elevator and aileron.	
empennage   The tail assembly  of an airplane, including
    the fin, rudder, elevators, etc. 
escape window   A pilot's safe path out of a fight.  It
    represents the chance of safely separating from the
    fight.