(a) Relatively flat bottom with extreme light-reflecting ability; (b) absence of sound except for an occasional roar when operating under superperformance conditions; (c) extreme maneuverability and apparent ability to almost hover; (d) a plan form approximating that of an oval or disc with a dome shape on the top surface; (e) the absence of an exhaust trail except in a few instances when it was reported to have a bluish color, like a diesel exhaust, which persisted for approximately one hour. Other reports indicated a brownish smoke trail that could be the results of a special catalyst or chemical agent for extra power; (f) the ability to quickly disappear by high speed or by complete disintegration; (g) the ability to suddenly appear without warning as if from an extremely high altitude; (h) the size most reported approximated that of a C-54 or Constellation type aircraft; (i) the ability to group together very quickly in a tight formation when more than one aircraft are together; (j) evasive action ability indicates possibility of being manually operated, or possibly by electronic or remote control devices; (k) under certain power conditions, the craft seems to have the ability to cut a clear path through clouds—width of path estimated to be approximately one-half mile. Only one incident indicated this phenomenon.
Schulgen’s memo, which surfaced in 1985, contained a paragraph implying credence in the extraterrestrial hypothesis:
While there remains a possibility of Russian manufacture, based upon the perspective thinking and actual accomplishments of the Germans, it is the considered opinion of some elements that the object may in fact represent an interplanetary craft of some kind.... The presence of an unconventional or unusual type of propulsion system cannot be ruled out and should be considered of great interest.
During the late 1990s, UFO researcher Robert Todd obtained a fresh copy of the Schulgen memo which did not contain the above paragraph. Instead, that passage read as follows:
This strange object, or phenomenon, may be considered, in view of certain observations, as long-range aircraft capable of a high rate of climb, high cruising speed (possibly subsonic at all times) and highly maneuverable and capable of being flown in very tight formation. For the purpose of analysis and evaluation of the so-called “flying saucer” phenomenon, the object sighted is being assumed to be a manned aircraft, of Russian origin, and based on the perspective thinking and actual accomplishments of the Germans.
Rather different from considering the ET hypothesis, leading the UFO research community to declare the original to be a fake. The authentic memo, while not considering the extraterrestrial hypothesis, gives great detail about the objects seen, and leaves no doubt that they were truly extraordinary, as this description shows:
(a) Type of material, whether metal, ferrous, non-ferrous or nonmetallic; (b) Composite or sandwich construction utilizing various combinations of metals, metallic foils, plastics, and perhaps balsa wood or similar material; (c) Unusual fabrication methods to achieve extreme light weight and structural stability.
(a) Special provisions such as retractable domes to provide unusual observation for the pilot and crew members; (b) Unusual features or provisions regarding the opening and closing of doors.
(a) Indicate type of landing gear—whether conventional, tricycle, multiple wheel, etc. or of an unconventional type such as tripod or skid.
(a) (3) Nuclear propulsion (atomic energy). Atomic energy engines would probably be unlike any family type of engine, although atomic energy might be employed in combination with any of the above types (piston, jet). Aircraft would be characterized by lack of fuel systems and fuel storage space. (b) The powerplant would likely be an integral part of the aircraft and possibly not distinguishable as an item separate from the aircraft.
Schulgen’s thinking was that the Soviets could well be behind the UFO mystery. He analyzed at great length the possibilities of Soviet manufacture of a German flying wing design from the recent war, in particular, the work of the Horten brothers, whose work was under contract to the Luftwaffe. Immediately following the memo, American military investigators followed up to check on the Horten brothers and any other European leads that might point to the Soviet manufacture of flying saucers. By December, both brothers were found, along with a number of other leading-edge German aviation experts, but after extensive questioning, the Americans found nothing to connect the Soviets—or anyone else, for that matter—to the flying saucer phenomenon. Schulgen’s speculations had seemingly reached a dead end.72