Pitch control of swept wing aircraft

Details Pitch control of swept wing aircraft Pitch control of swept wing aircraft

1982-12-23

1986-02-11

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244 45A, 244 75R, B64C 2306

Patent

active

045694940

ABSTRACT:
A pair of vanes (26, 28) extend laterally outwardly from the fuselage (10) of a swept wing aircraft immediately forwardly of the wings (12, 14). The preferred vanes (26, 28) have a trapezoidal plan form, an outwardly tapering thickness and an airfoil cross-sectional configuration. The vanes (26, 28) are substantially aligned with streamlines (46) during level flight. In a maneuver the vanes generate vortices which flow rearwardly over the upper surfaces of the inboard portions of the wings (12, 14), causing the inboard portions of the wings (12, 14) to stall at lower angles of attack than that of the wings (12, 14) alone would otherwise dictate and a raising of the downwash of the wings in the region of the tail. This lifting of the downwash results in the horizontal stabilizers (16, 18) of the tail being effective to create moments in opposition to "pitchup" of the aircraft.

REFERENCES:
patent: 2343655 (1944-03-01), Flader et al.
patent: 2403770 (1946-07-01), Van Zelm
patent: 2573834 (1951-11-01), Davidson
patent: 2650752 (1953-09-01), Hoadley
patent: 2694357 (1954-11-01), Lee
patent: 2769602 (1956-11-01), Furlong
patent: 2924400 (1960-02-01), Ruget
patent: 2927749 (1960-03-01), Brownell
patent: 2941752 (1960-06-01), Gluhareff
patent: 2944764 (1960-07-01), Lane et al.
patent: 2953322 (1960-09-01), Lewis
patent: 2997260 (1961-08-01), Locke, Jr.
patent: 3008291 (1961-11-01), Hardgrave, Jr.
patent: 3082981 (1963-03-01), Gruen
patent: 3093348 (1963-06-01), Schelp et al.
patent: 3152775 (1964-10-01), Boyd
patent: 3188022 (1965-06-01), Ornberg
patent: 3218005 (1965-11-01), Alvarez Calderon
patent: 3270989 (1966-09-01), Polhamus et al.
patent: 3370810 (1968-02-01), Shevell et al.
patent: 3384326 (1968-05-01), Neubeck
patent: 3471107 (1969-10-01), Ornberg
patent: 3525486 (1970-08-01), Wimpenny
patent: 3539133 (1970-11-01), Robertson
patent: 3578264 (1971-05-01), Kuethe
patent: 3620484 (1971-11-01), Schoppe et al.
patent: 3642234 (1972-02-01), Kamber et al.
patent: 3643901 (1972-02-01), Patapis
patent: 3680816 (1972-08-01), Mello
patent: 3693913 (1972-09-01), Barland et al.
patent: 3739458 (1973-05-01), Haberkorn
patent: 3744745 (1973-07-01), Kerker et al.
patent: 3774867 (1973-11-01), Quinn
patent: 3862468 (1975-01-01), Fortune
patent: 3883094 (1975-05-01), Mederer
patent: 3926389 (1975-12-01), Mederer
patent: 3997132 (1976-12-01), Erwin
patent: 4039162 (1977-08-01), Calhoun et al.
patent: 4161300 (1979-07-01), Schwaerzler et al.
patent: 4174083 (1979-11-01), Mohn
patent: 4176813 (1979-12-01), Headley et al.
patent: 4378922 (1983-04-01), Pierce
FSW, Horizons, vol. 16, No. 1, 1980, (back inside cover).
Pp. 31-35 of Jun. 1980 issue of AERO.
P. 18 of Dec. 1980 issue of Flying.
P. 119 of AOPA PILOT.

Affiliated with

Also associated with

Rating

Pitch control of swept wing aircraft does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pitch control of swept wing aircraft, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pitch control of swept wing aircraft will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1202097