DeepSky   -  continued

 

4. Normal sequence at an altitude 30000m
      At 30000m height, there have 1/100 atmospheric pressure against to ground, almost law of aerodynamic does not work. 

       If case at enough thin air altitude of non-aerodynamic height, if it has a spin, system denys it with thrusters.
       At there, the craft starts to keep level flight atitude with thruster and continues keeping the attitude until before altitude falls to 20000 meters. Then the craft  lowers nose to generate lifting.

5. Emergency escaping sequence at an altitude 30000m
    At 30000m height, there have 1/100 atmospheric pressure against to ground, almost law of aerodynamic does not work. 

     In such an enviroment, and added a dynamic state called the free-fall, it is hard to stop even movement like very slow spining.

     In an altitude of rare atmosphere like above,  a slight shock is the beginning of the unexpected movement.

     And what was worse, those spining are being increased  and increased during object is having losen its altitude.

     In the end, even in an altitude of dense atmosphere, hard spining prevents aerodynamic control, though  almost crews are in heaven.
     One result is an attitude control(pitching, rolling, yawing) by thruster  in rare atmosphere, next is stable fins in dense atmosphere in this case. 
     Craft has totally 6 thrusters for attitude control at 30000m height. If  the craft lose the attitude by an unexpected disturbance, the thrusters instantaneously maintains attitude.

     Then, always, continuously,  the monitor simulates and judges possibility to keep attitude until aerodyamic force begins to work.
     Even if the craft has uncontrollable intense spin, though the thrusters continue to try maintaining the attitude, behind the monitor calculates, simulates, judges the possibility.

     If the monitor judges it is impossible to keep maintaining the attitude, eventhough if the craft is in dense atmosphere, then command is sent to  emergency escape seat system
     to invoke. And then detonation cord detonates to crash the canopy.  Simultaneously , ignite emergency escape seat booster rocket to let crews escape.
     Each emergency escape seat has totally 6 thrusters for attitude control each 2 in pitching, rolling, yawing for event at 30000m height emergency escape for before releasing a parachute at 

     altitude of enough dense atmosphere. Then next, in dense atmosphere, the system release seatbelt to throw each crews out to . Crews fall down  by parachutes.
     After that, after system confirm every crews are not in seats, one shot retro rocket is ignited and rise an empty seat to more 100m over top, and then recovery parachute is released for

     avoiding collision with crews.