Aeronautic Vocabulary

Across
1.	The understructure of an airplane which supports the airplane on land or water: wheels, skis, or pontoons. Retractable gear folds up into the airplane in flight. Gear that does not retract is called "fixed".
6.	An object shaped to make air flow smoothly around it.
8.	The streamlined body of an airplane to which are fastened the wings and tail.
19.	A push or pull exerted on an object.
21.	Forward force.
7.	A vertical attachment to the tail of an aircraft which provides directional stability. Same as vertical stabilizer.
14.	The reduction of speed to the point where the wing stops producing lift.
17.	Control surfaces hinged at the back of the wings which by deflecting up or down help to bank the airplane.
10.	Speed
12.	Control surface hinged to the back of the vertical fin.
23.	Part of the airplane shaped like an airfoil and designed in such a way to provide lift when air flows over it.
22.	The part of the airplane to which the rudder and elevators are attached. It has vertical and horizontal stabilizers to keep the airplane from turning about its lateral axis.

Down
5.	Distance toward the horizon that objects can be seen and recognized. Smoke, haze, fog, and precipitation hinder this.
21.	To operate an airplane under its own power; other than in actual take off or landing.
3.	The height above sea level of a given land prominence, such as airports, mountains, etc.
9.	Beamed radio waves for detecting and locating objects. The objects are "seen" on a screen or scope.
2.	An instrument for measuring in feet the height of the airplane above sea level.
4.	Control surfaces hinged to the horizontal stabilizer which control the pitch of the airplane, or the position of the nose of the airplane relative to the horizon.
18.	A measure of speed, of one nautical mile per hour.
20.	An aeronautical map showing information of use to the pilot in going from one place to another.
15.	Building on the airport in which airplanes are stored or sheltered.
13.	The part of the airplane which provides power, or propulsion, to pull the airplane through the air.
11.	Hinged or pivoted airfoils forming part of the trailing edge of the wing and used to increase lift at reduced air speeds.
16.	Person who controls the airplane.