|
Tail Stall
The horizontal stabilizer balances the tendency of the nose to pitch down by generating downward lift on the tail of the aircraft. When the tail stalls, this downward force is lessened or removed, and the nose of the airplane can severely pitch down.
ADDS
Aviation Digital Data Service
Wing Deicer, and Anti-icing Systems
There is presently one type of wing deicer—boots—and two anti-icing systems—weeping wing systems (fluid
deice systems) and heated wings—that are commonly used in general aviation today.
Duck-Under Syndrome
A pilot may be tempted to make it into an airport by descending below minimums during an approach. There may be a belief that there is a built-in margin of error in every approach procedure, or a pilot may want to admit that the landing cannot be completed and a missed approach must be initiated.
Night Landing Illusions
Landing illusions occur in many forms. Above featureless terrain at night, there is a natural tendency to fly a lower-than-normal approach. Elements that cause any type of visual obscuration, such as rain, haze, or a dark runway environment also can cause low approaches.
Spatial Disorientation
Spatial disorientation is an erroneous sense or mistaken perception of one's position and motion relative to the earth.
Steady red
Stop or Give way to other aircraft and continue circling Runway Incursion
PAPIs
Precision approach path indicators light units similar to the VASI but are installed in a single row of either two or four light units.
Trace
Ice becomes perceptible. Rate of accumulation is slightly greater than the rate of sublimation.
Autokinesis
At night, a stationary dim light against a dark background will appear to move if a pilot visually fixates on the light for about six to 12 seconds.
|
Did You Know?