unit 1 aero

ADF

automatic direction finder. aircraft radio nav. system that senses and indicates direction to L/MF NDBs (non-directional radio beacon) ground transmitter

AGL

above ground level. altitude in feet that’s above ground level.

AID

accident inident database. produced by the FAA

aileron

small-hinged sections on the outboard portion of a wing that are used to generate a rolling motion for an aircraft

ambient light

the light surrounding the environments

analog

way of representing some physical quantity, such as temperature or velocity, by a proportional continuous voltage or current

airfoil

any surface, such as a wing, which provides aerodynamic force when it interacts with a moving stream of air

anemometer

instrument for measuring the force or velocity of wind; a wind guage

angle of attack

angle formed by the wing chord line and the relative wind

compression stroke

piston moves back towards the cylinder head

arguement of pedigree

abreviated as ω. orientation of orbit within an orbital plane

aspect ratio

the relationship between the length and width of a wing

asteroid

small bodies composed of rock and metal in orbit

ATC

air traffic control. system designed to prevent collisions of aircrafts

avionics

electronics that are onboard for piloting an aircraft. enable interaction with aircraft system like navigation, communication, and flight control

fatigue

loss of load-bearing ability of material under repeated load application stress, as opposed to a single load

bearing

horizontal direction to or from any point, usually measured clockwise from true north, magnetic north, or some other ref. point through 360 degrees

blind spot

small circular area in the retina where optic nerve enters the eye that is devoid of rods and cones and is insensitive to light

block-based programming

means to create computer programs using graphics instead of text. also called visual programming language

stress

force acting across a unit area in a solid material resisting the separation, compacting, or sliding that tends to be induced by external forces

center of gravity

the common reference point for the three axis of the aircraft

toughness

mechanical property of a material that indicates the ability of the material to handle overloading before it fractures