Frankie G. Moore - King George VA Thomas C. Hymer - Dahlgren VA
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
G06F 1130
US Classification:
702182, 244194
Abstract:
An improved aeroprediction code (APC) allows aerodynamics to be predicted for Mach numbers up to 20 for configurations with flares. Moreover, the improved APC advantageously extends the static aerodynamic predictions for Mach numbers less than 1. 2, improves the body alone pitch damping for Mach numbers above 2. 0, and develops a new capability for pitch damping of flared configurations at Mach numbers up to 20. The improved APC also permits determination of aerodynamic effects associated with power-on events and trailing edge flaps. Corresponding methods are also described.
Low Cost Attitude Position Sensor For High Speed Vehicles
Frankie Gale Moore - King George VA John Lawrence Frierson - Fredericksburg VA Richard Lawrence Van Meter - Fredericksburg VA
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
B64C 1318
US Classification:
244181
Abstract:
A pair of electrostatic sensors are recessed in the outer wall of a superic ballistic body. The vertical electrostatic gradient in the atmosphere produces a voltage differential between the sensors when one sensor is higher than the other. Since the fixed geometrical relationship between the sensors is known, the magnitude and sign of the voltage differential can be correlated to the instantaneous attitude of the vehicle with respect to the earth's surface.