The fix, point, or location to which an aircraft is cleared when issued an air traffic clearance.
The ratio between lift pressure and dynamic pressure.
The boundary between two air masses where cold air is replacing warm air.
A true course corrected for variation and deviation errors.
A low-power, low- or medium-frequency (L/MF) radio beacon installed at the site of the outer or middle marker of an ILS.
A small circle graduated in 360° increments, to show direction expressed in degrees.
An aircraft with retractable landing gear, flaps, and a controllable pitch propeller.
A point used to define a navigation track for an airborne computer system such as GPS or FMS.
A change of state of water from a gas (water vapor) to a liquid.
Small particles of solid matter in the air on which water vapor condenses.
A cone-shaped volume of airspace directly above a VOR station where no signal is received, causing the CDI to fluctuate.
This is a general term, which normally refers to the position of the landing gear and flaps.
A controllable-pitch propeller whose pitch is automatically varied in flight by a governor to maintain a constant rpm in spite of varying air loads.
System that supplies a constant supply of pure oxygen to a rebreather bag that dilutes the pure oxygen with exhaled gases and thus supplies a healthy mix of oxygen and ambient air to the mask. Primarily used in passenger cabins of commercial airliners.
A display interfaced with the master computer, providing the pilot with a single control point for all navigations systems, thereby reducing the number of required flight deck panels.