Aeronautics and astronautics – Safety lowering devices
Patent
1991-07-31
1993-02-16
Peters, Jr., Joseph F.
Aeronautics and astronautics
Safety lowering devices
244152, 342 64, 102387, B64D 108
Patent
active
051864185
ABSTRACT:
The recoverable airborne instrument module is implemented using an aerodynamic housing which has at least one moveable control surface thereon. In operation, the recoverable instrument module is carried aloft by balloon to enable its instrument package payload to perform a series of meteorological measurements. The exterior housing of the recoverable instrument package has an aerodynamic shape, such as a delta wing airframe with a controllable rudder. A navigation circuit contained within the housing references the radio frequency transmissions of a plurality of beacons to determine the altitude and geographic position of the instrument package. This information, as well as data identifying the location of at least one predetermined landing site is used to dynamically calculate a flight path to controllably descend the instrument module to a selected one of these landing sites. The guidance control circuit uses the rudder to steer the recoverable instrument module in a glide along the computed flight path to perform a controlled descent to the selected predetermined landing site. A radio frequency transmitter broadcasts present position information to act as a beacon to expedite recovery of the instrument module.
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Ansley VirnaLissi
Peters Jr. Joseph F.
University Corporation For Atmospheric Research
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