Aeronautics and astronautics – Retarding and restraining devices – Aerodynamic retarders
Patent
1985-12-13
1987-02-24
Basinger, Sherman D.
Aeronautics and astronautics
Retarding and restraining devices
Aerodynamic retarders
244 1TD, 244110D, 244191, 244 76R, B64C 932
Patent
active
046451447
ABSTRACT:
In order to achieve fine control of the velocity of an aircraft flying a predetermined flight path at a predetermined nominal speed in the presence of such perturbations as wind gusts, a low inertia, fast acting device is extended or deployed into the aircraft dragstream and is rapidly position-modulated in response to sensed acceleration/deceleration to instanteneously slightly alter the total system drag to an amount which causes the aircraft to maintain the predetermined velocity. Among the exemplary alternative low inertia devices disclosed are: fuselage and wing mounted flaps which are rapidly more or less extended, a trailing cable which is rapidly reeled in or out, and a trailing inflatable member whose degree of inflation is rapidly changed, all in response to sensed acceleration/deceleration from an on-board system.
REFERENCES:
patent: 2761636 (1956-09-01), Finlay
patent: 2948496 (1960-08-01), Joline
patent: 3212730 (1965-10-01), Tschudy et al.
patent: 3390853 (1968-07-01), Wykes
patent: 3448948 (1969-06-01), Reerink
Atlantic Richfield Company
Basinger Sherman D.
Corl Rodney
Phillips James H.
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