Aero 310 Midterm

Front 1

Aerodynamics

Back 1

the field of dynamics concerned with the motion of air and other gaseous fluids; a branch of fluid dynamics

Front 2

Airfoil

Back 2

a body designed to obtain an aerodynamic reaction perpendicular to its direct of travel through the air

Front 3

ailerons

Back 3

moveable surfaces to control the rolling movements of an airplane

Front 4

airscrew

Back 4

a screw to effect propulsion through the air. alternative: propeller

word of choice when discussion the early history of the device

Front 5

autogrio

Back 5

a trade name for the successful type of gyroplane

Front 6

biplane

Back 6

an airplane with two main sets of wings, one above the other

Front 7

canard

Back 7

the french word for "duck". the word unaccountably applied to a "tail-first" airplane with the fuselage and elevator ahead of the main wings

Front 8

cockpit

Back 8

the compartment from where an aircraft is controlled, seating the pilot and other crew. often referred to as the "flight deck"

Front 9

drag

Back 9

the resistance force exerted by the air on a body, in a direction opposite to the direction of motion

Front 10

elevator

Back 10

a horizontal control surface to control the climb and descent of an aircraft.

in early aviation it was called the "horizontal rudder"

Front 11

empennage

Back 11

the early term for an airplane's tail unit

(french word derived from empenner: to feather an arrow)

Front 12

fin

Back 12

a fixed, vertical airfoil for stabilizing purposes

"vertical stabilizer"

Front 13

flap

Back 13

any control surface designed to increase the lift of an airplane

Front 14

flapper

Back 14

an ornithoptering winglet, or small beating surface used to effect either propulsion and/or lift

Front 15

flying wing

Back 15

an aircraft consisting entirely of a single large airfoil within which the engines, passengers, are contained

Front 16

fuselage

Back 16

the body or hull of an airplane

Front 17

gyroplane

Back 17

a rotorcraft with non-powered rotors, as in the Autogrio, which provide lift but no propulsion

Front 18

horiztonal rudder

Back 18

the early term for an elevator

Front 19

horizontal stabilizer

Back 19

the American term for a horizontal tail

Front 20

kite

Back 20

the earliest type of heavier-than-air aircraft, from which "propulsion" is supplied by the pull on the "tow line", and life is supplied by the kite being inclined to the wind

Front 21

lift

Back 21

component of the total aerodynamic forces acting on airfoil, which is perpendicular to the wind

Front 22

mach number

Back 22

the ratio of the airspeed of an aircraft to the speed of sound in the air surrounding it

mach 1- speed of sound

mach2- twice the speed of sound

Front 23

nacelle

Back 23

a separate enclosure on an aircraft for housing crew, engines, or other objects

french word for "small boat"

Front 24

ornithopter

Back 24

an aircraft sustained in the air and propelled by flapping wings

Front 25

propeller

Back 25

became synonymous with "airscrew" from 1845-55. previously referred to any propelling device

Front 26

range

Back 26

the overall distance an aircraft can fly under a given set of conditions

Front 27

rotor

Back 27

an assembly comprising generally two or more long narrow wings (called blades) set in a hub on a vertical shaft that provides lift

Front 28

rudder

Back 28

vertical control surface for guiding an aircraft in the horizontal plane

controls the yaw

Front 29

stabilizer

Back 29

an airfoil used to provide stability

Front 30

stall

Back 30

the behavior of an airplane, owing to the excessive angle of attack of the wing to the relative wind, the wing loses lift

Front 31

streamlining

Back 31

the giving of specially shaped and smooth contour to an object to decrease its resistance in a fluid flow

Front 32

subsonic speed

Back 32

speed below that of sound

(below mach 1)

Front 33

supersonic speed

Back 33

speed of sound and above

Front 34

transonic speed

Back 34

the speed of an aircraft in the region of the speed of sound, where the surrounding airflow is simultaneously subsonic, sonic and supersonic

usually from Mach 0.8 to Mach 1.6

Front 35

thrust

Back 35

the driving force exerted on any aircraft by its propeller, rotor, jet or other means

Front 36

triplane

Back 36

an airplane with three main wings set one above the other

Front 37

vertical stabilizer

Back 37

the American term for a vertical tail fin

Front 38

wing

Back 38

the main lifting airfoil of an airplane