Chapter 1 Lesson 2 Flashcards
Lift
The upward force on an aircraft against gravity.
Aerial Reconnaissance
Looking over battlefields from the sky.
Dirigible
A steerable airship.
Rudder
A vertically hinged airfoil used for controlling horizontal movement
of an aircraft.
Keel
A structure that extends along the center of a craft from the front
to the back.
Internal-Combustion Engine
An engine in which the fuel is burned inside, rather than in an external furnace. (A gas-burning car engine is an internal combustion engine.)
Aeronauts
People who travel in airships or balloons.
Drag
The pull, or slowing effect, of air on an aircraft.
Thrust
The forward force driving an aircraft.
Biplane
An aircraft with two main supporting surfaces, usually placed one above the other.
Patent
A legal document protecting the rights of an inventor.
Monoplane
An airplane with one set of wings.
