above the trim deflection the beaver tail pitch control element 11 of the device assumes primary responsibility for pitch control and pitch trim thus freeing the horizontal tail 9 or elevons to provide additional differential roll control the wide airfoil afterbody 3 also lends itself readily to incorporation when desired of controlled body camber indicated by 25 of fig1 the body camber 25 when employed provides the desired level of positive aerodynamic zero lift pitching moment for minimum trim drag excellent reserve maneuver control power becomes available as a result of such capability the relatively flat wide undersurface of the afterbody 3 shown in fig9 serves as an ideal attachment surface for optimum mounting of external weapons and or stores 21 near the center line of the longitudinal axis in lieu of conventional mounting spanwise on the wing thereby considerably enhancing both the static and dynamic stability of the aircraft mounting of stores 21 near the aircrafts 39 s longitudinal axis of symmetry results in reduced roll inertia thereby effecting improved roll control response resultant separation and launch reactions from such weapons and or stores from the afterbody is much less malefic than that resultant from wing mounted stores because more favorable flow fields exist at the afterbody location than at the wing spanwise mounting positions the afterbody mounting also permits the weapons and or stores to be semisubmerged with attendant reduced drag and improved performance of the aircraft the wide flat afterbody 3 forms paddle like planar surfaces which serve to provide much greater inherent aerodynamic pitch damping when compared to that resultant from a conventional conical relatively narrow fuselage afterbody similarly such a wide flat afterbody provides a more.