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Atmospheric Conditions
Haze, flight over open water, or an obscured horizon can make it difficult to see distant objects, impairing the ability to refocus vision.
Deicing
Is used after ice has built up to an appreciable amount. Typically this includes surface deice equipment.
Weeping wing
Deicing systems pump fluid from a reservoir through a mesh screen embedded in the leading edges of the wings and tail. depend on airflow as well, and if the primary air intake ices, an alternate air door either opens automatically
TCAS
Traffic Alert and Collision Avoidance Systems Technology in the cockpit can help pilots to see and avoid other aircraft. All air carrier aircraft are equipped with Traffic Alert and Collision Avoidance Systems.
Taxi to—hold short
A clearance to begin taxiing, but enroute to the taxi clearance limit you must hold short of another taxiway or a crossing runway as specified by the controller.
Nondirectional Radio Beacon (Ndb)
An L/MF or UHF radio beacon transmitting nondirectional signals whereby the pilot of an aircraft equipped with direction finding equipment can determine the bearing to or from the radio beacon and “home” on or track to or from the station.
MAC
Mid Air Collision
ADDS
Aviation Digital Data Service
VASI
Visual approach slope indicators provides visual descent guidance during the approach to a runway. The
lights are arranged in bars and vary in number from two to 16.
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.
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Did You Know?