C00015368-
 1. The distance and. Ughtius conditions wider which the
 source sighted the tmusual object vault sake it extsvnely difficult
 to determine just what vas beins ceon.  in some degree, the
 description fits a vertiail tape-oft aircraft or a scissile or
 aircraft launched from a zero length rail.  The-zero. length launching
 could most certainly be accas;glished only with a rocket mblah would.
 produce a lwPs'flame,and,smoke which would have been very noticeable.
 The spiraling of the object as it left the launcher does not fit very
 veil with a vertical, take-off aircraft.
 2.  The very anal]. amount of details given in the referenced
 report does not permit an identification of the object sighted.  It
 does,.houever, teed.to iiidicate?that it.vas not a "flying saucer".
 In 19%, the Scientific Advisory Board to the Chief of Staff,.1 AF,
 appointed an ad hoc committee of three scientists to evaluate
 project "Y".' The committee found that several factors had been
 overlooked orrsinimised in their d relc Gent, such as payload,
 drag factors, and mechanical design problems, to such an extent that
 the cormittae recoaaaeVAed s net support for the project. Air Three
 support of the project now is in basin research concerned with
 vertical thrust which codifies conaidurably the flying saucer concept.