Aeronautics and astronautics – Aircraft control – Automatic
Patent
1992-08-26
1995-08-29
Rice, Kenneth R.
Aeronautics and astronautics
Aircraft control
Automatic
244196, 244199, 244221, G05D 100
Patent
active
054453461
ABSTRACT:
Spoilers on the forward top and bottom elevator tail surface of large aircraft offer an independent backup for pitch control. The placement of spoilers in a line along the forward portion of an aircraft pitch-control structure offers direct upward or downward "lift" from a spoiler-induced unbalance of Bernoulli forces on a near-symmetrical airfoil. Combined with a temporary bypass valve and channels between the "up" and "down" hydraulic actuators, a spoiler's forward-mounted torsion force on the elevator surfaces can also rotate the elevators in a controlled fashion. Preparation for hi-risk aircraft missions would install gate-spoiler surfaces into spoiler-actuating subsystems as a temporary safety-of-flight hedge against the loss of hydraulic elevator control.
REFERENCES:
patent: 1773530 (1930-08-01), Hannah
patent: 2455584 (1948-12-01), Jamison
patent: 2665084 (1954-01-01), Feeney et al.
patent: 2740596 (1956-04-01), Lee
patent: 2846165 (1958-08-01), Axelson
patent: 3539133 (1970-11-01), Robertson
patent: 4019696 (1977-04-01), Hirt et al.
patent: 4039161 (1977-08-01), Bauer
patent: 4142699 (1979-03-01), Arnquist et al.
patent: 4180224 (1979-12-01), Ryle, Jr.
patent: 4293110 (1981-10-01), Middleton et al.
patent: 4781341 (1988-11-01), Kasper
Ellis Christopher P.
Rice Kenneth R.
LandOfFree
Aircraft tail surface spoilers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Aircraft tail surface spoilers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aircraft tail surface spoilers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1814898