Paul T Glessner has worked as an aerospace engineer in varying capacities for Boeing-Vertol  Grumman Aerospace  Lockheed - Burbank  McDonnell-Douglas  now Boeing  and ATK on such projects as the CH-46/47  F-14  classified projects  S-3 P-3  accident investigations  High Speed Civil Transport  B-717  MSST  and the Space Shuttle in such disciplines as Stability  Control & Flying Qualities besides Aerodynamics  Flight and Wind Tunnel Testing and Flight Controls