The microprocessor will also be able to process inflight information and through a controller tilt the seat aftward in the cockpit to increase the aircrew member's tolerance to high G maneuvers. Seat stabilization is another area that is being given emphasis. Yaw fin stabilizers have been demonstrated to effectively stabilize the seat in this position. Normally positioned against the sides of the seat, these small fins are automatically deployed and locked into position as the seat moves up the guide rails. Other seat stabilization systems such as afterbodies, inflatables, drogues, and bridles are also being studied.
Parachutes are also continually in the process of improvement.
Development is proceeding on variable porosity materials to reduce the magnitude of high speed canopy opening shock forces. Steerable and glideable configurations are being developed to help the crew member select a safe landing area. Other areas being investigated are service life extension, vacuum packaging, deployment, and stability improvements. Lack of adequate windblast protection has been a major deficiency of open ejection seats. Therefore, new types of passive upper body and arm restraints are being developed to contain the limbs so that aerodynamic loads do not force them outward and backward where they are arrested either by the seat structure or the body joints limit of articulation.