Aeronautics and astronautics – Spacecraft – Reusable or returnable
Reexamination Certificate
2007-09-11
2007-09-11
Holzen, Stephen A. (Department: 3644)
Aeronautics and astronautics
Spacecraft
Reusable or returnable
C244S158900
Reexamination Certificate
active
10990393
ABSTRACT:
A system for reducing plasma induced communication disruption is disclosed. The system utilizes an electrophilic gas injectant, bent reentry vehicle nose shaping and a number of flaps configured to provide 3-axis steering capability. Injecting electrophilic gas injectant into plasma accomplishes reduction of plasma induced communication disruption by removing free electrons in the plasma which causes the communication disruption. For reentry vehicles, a bent biconic nose also reduces plasma effect during reentry. By combining electrophilic gas injection and bent nose shaping, the system reduces and/or eliminates plasma induced communication disruption, such as, GPS communication blackout, for a reentry vehicle during reentry. Furthermore, the 3-axis steering capability renders the reentry vehicle more maneuverable. Performance of the reentry vehicle during reentry, such as, target accuracy, is thus improved.
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Dunn Steven A.
Meyer J. William
Teter Roger D.
Holzen Stephen A.
Lockheed Martin Corporation
McDermott Will & Emery LLP
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