Re: New Generation Fighter
Design
The general design concept of the J-XX is that of a fifth generation fighter which incorporates stealth, supercruise, super-maneuverability and short take-off capabilities, abbreviated "4S".[16] One or more of the proposed designs are believed to incorporate several design features for increasing stealth and maneuverability while decreasing weight and drag.
A V-shaped pelikan tail could be implemented, replacing conventional vertical tail fins and horizontal stabiliser structures. This would be beneficial for reduction of radar signature, weight and aerodynamic drag, since control surface area and corresponding control mechanisms are reduced. Problems faced by this type of design are flight control system complexity and control surface loading. If the pelikan tail is adopted, use of engines with thrust vector control may alleviate these problems.[17]
The new fighter may have a significantly longer fuselage than other fifth generation fighter designs, such as the F-22, for reduction of transonic and supersonic drag.[18] A trapezoidal wing may be implemented for reduction of drag and radar signature.[19] Use of an 's'-shaped air inlet and boundary layer separation system would greatly reduce radar signature.[20]
(from wikipedia J-xx)