longitudinal stability

[‚län·jə′tüd·ən·əl stə′bil·əd·ē]

(engineering)

The ability of a ship or aircraft to recover a horizontal position after a vertical motion of its ends about a horizontal axis perpendicular to the centerline.

longitudinal stability

The stability of an airplane about the lateral (pitching) axis. An airplane is stable if, when its angle of attack is temporarily increased, forces act in such a way as to push the nose down and thus decrease the angle of attack. The main factors that affect longitudinal stability are the design of the tailplane and the position of the center of gravity. The tail design features that may affect the restoring moment or longitudinal stability are the total tailplane area, the length of the moment arm, its plan form, and the downwash angle from the wing. The position of the center of gravity affects the ratio of the tail moment and therefore the degree of stability.

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References in periodicals archive

(40) showed that this construct could restore longitudinal stability equivalent to that provided by the interosseous membrane.

The Essex-Lopresti Injury

Such longitudinal stability in performance highlights a need for effective and timely assessment, along with early intervention where needed.

Innovative linguistic inquiries in the primary classroom

studied EVs' longitudinal stability control based on a newly developed multimachine robust control system.

Travel Behavior and Transportation Systems Analysis of Electric Vehicles

Also, the rudder "toe-in" was gone, decreasing longitudinal stability and pitch authority in the case of a bolter.

Dutch roll in the conga line

The longitudinal stability derivatives parameter used are denoted in Table 1 [1].

Predictive controller for pitch controller missile

Irodov, "Criteria of longitudinal stability of ekranoplan," Ucheniye Zapiski TSAGI, vol.

Experimental investigation of a wing-in-ground effect craft

Upon disturbance, the airplane then naturally returns to the same angle of attack without intervention, a referendum on the longitudinal stability inherent to the aircraft.

Dissecting the PIO: getting out of synch with the airplane's pitch attitude is known as pilot-induced oscillation. It easy to stop, but only at the right time

This nails do not ensure sufficient longitudinal stability in grossly comminuted or long oblique fracture with result shortening (6, 9).

Periprosthetic fracture treated with a simple technique: a case report

The horizontal tail plane is located at the rear of the aeroplane with the aim of increasing longitudinal stability and control.

SPANISH AID FOR AERNNOVA AUTHORISED