any weight-carrying device designed to be supported by air, either by buoyancy or by dynamic action.

the maximum altitude at which an airplane will fly.

one small red light found on top of the aircraft.

wind that blows without any marked regularity.

form of aircraft that is heavier than air, has wing surface, rudders for steering, and a power plant for propulsion through the air.

friction of air over the airplanes surfaces which tends to hold back the plane.

term applied to a condition where the propeller blade edges are turned parallel to the line of flight. The equal pressure on both sides of the blades stops the propeller and so stops the

condition where several airplanes are cruising above an airport at different altitudes awaiting their turn to land

movable portion of the wing, which forms the lower trailing edge when retracted. When extended, it tends to decrease air speed on descent and increase the lift.

tassel-like cords on the trailing edge of wing tips and elevator used to eliminate static electricity in radio receivers.

the rate of change of distance with respect to time.

left side of the aircraft, facing the flight deck.

main body of an airplane where the wings are attached. It also houses the crew, passengers, and cargo.

fixed vertical mounting for the rudder. Used to stabilize or control the empennage vertically

the downward pull on the airplane.

a hinged movable portion of the wings, the primary function of which is to impress a rolling motion of the airplane. It is a part of the trailing edge.

the greatest distance towards the horizon at which conspicuous objects can be seen and identified by unaided eyes.

general term used to describe one of the main support structures of the airplane, which is, designed to develop a major part of the lift of the airplane.

leading most portion of the wing.

science that deals with motion of air and other gaseous fluids and of the forces acting on solids in motion in the air.

To fly beyond a designated mark or area, such as a landing field during landing.

wind that comes from either side of the airplane and blows across its part, thus causing the plane to drift off course

wind that pushes the airplane, coming from the rear, thus increasing the ground speed of the airplane.

movable surface hinged to the horizontal stabilizer which controls the up and down movement of the aircraft.

vertical distance measured in feet above sea level.

assembly of blades, which provides the force that drives the airolane forward when rotated

hinged or movable surface through which the direction of the flight may be changed to left or right.

right side of the aircraft, facing the flight deck.right side of the aircraft, facing the flight deck.

the condition when the engine is being tested before its initial flight. A backfire may occur if the engines are not yet fully warmed to the proper temperature

mechanical instrument operated by gyro-instruments and controllers by the pilot, which can keep the plane in a normal flight automatically. It cannot be used for take-off and landings.

leading most area of the airplane.

airplane propelled by the forward thrust of an engine that ejects a rearward jet of air, gas, or liquid, at extremely high velocity through the Nozzle. They have no propellers to accelerate a large mass of air.

An atmospheric condition caused by vertically ascending and descending air currents When an airplane experiences sudden decrease in lift, it is in a region of descending air or down draft. This is also called bumpiness.

removable metal covering which extends over and around the engine.

cone-shaped structure located on each side of the fuselage, which supports the engine and houses the landing gear.

located on the right aileron, rudder, and each elevator. They are manually controlled and are used to balance the airplane load.

Landing gears which may be withdrawn into or folded inside the body wings of an airplane while in flight in order to reduce drag or resistance.

power of engines and propellers tending to pull the airplane forward.

rearmost portion of the wing.

gives the position and direction of movement of the plane.

Used for radio reception and transmission.

force that pulls the plane upward. Lift is created by the design of the wing, which results in a difference in air pressure between the top and underside of the wing, thus causing a sucking motion that lifts the plane upward.

airplanes with propellers driven by turbine power.

wind that comes towards the nose of the airplane, thus retarding its movement.

landing short of the landing field.

the method of maintaining-air pressure inside the airplane below that of the actual altitude of the flight.

located immediately in front of elevators. Used to lift and stabilize the empennage vertically

controllable louver for regulation of the airflow through the engine cowling.

used to illuminate the ground for landing at night.

change of attitude from left to right.