Group /Category 11 Sightings From Aircraft or Spacecraft

Donald E. Keyhoe:
During off-shore combat maneuvers, a squadron of carrier based Navy A3-D attack planes was approached by a rocket shaped UFO which swooped down on the flight from above. The object leveled off about 1000 feet overhead, slowed and paced the aircraft. When the Squadron Commander led his flight in pursuit of the UFO, it turned sharply so that its tail was pointed away, and shot upwards out of sight in seconds. 

(Confidential report acquired by Adm. Fahrney, Adviser Lou Corbin).