THSAs ensure that an aircraft maintains altitude during flight by adjusting the angle of the horizontal tail surface
. The Department's Antitrust Division today filed a civil antitrust lawsuit today in the U.S.
On each approach, the aircraft had a disabled horizontal tail surface
, aileron, asymmetric leading edge flap or engine.
The effects on lift and drag of hull geometry, flap geometry, weight, balance, power and tail surface
definition could therefore all be reviewed graphically, allowing the design to be optimised.
Movements of the caudal axis probably deformed the tail surface
. In living birds, natural or induced fan asymmetry is known to affect turning performance dramatically (Moller 1991).
Moreover, the aircraft's tail surface
, which is critical for providing lift at the earliest moment of takeoff, can't be seen at all.
De-icing boots, as the term implies, are rubber components attached to the leading edge of a wing or tail surface
. As the sidebar at right explains, when they're inflated with air drawn from either an engine-driven pump (typical piston-powered airplane) or a turbine engine's bleed air system, the boots expand to physically break any ice adhering to them, which then is carried away in the slipstream.
However, since the Cessna 150/152 airplanes are used for training, aerobatics and spins, which place additional loads on the vertical tail surface
, the FAA wants technicians, owners and operators to remain aware of the problem.
How the airplane you're flying reacts to power changes depends on a variety of factors, not least of which is its configuration of engine(s) and tail surfaces
. That's especially true when a design departs from the familiar: a conventional airplane with a front-mounted engine and propeller, i.e., a tractor configuration.
Significant damage to windshields, wings and tail surfaces
of aircraft was possible, the study found.
They are looking at relying on wireless technology as "an additional layer of redundancy" for moving critical wing and tail surfaces
that control flight, according to spokesman Clay McConnell.
The Su-33 is a single-seat ship-based STOBAR fighter, with upward folding wings and horizontal tail surfaces
(for hangar storage); it is equipped with probe-and-drogue flight refuelling capability.