With 100% Solved Solutions 2026.
Aircraft - Answer A device that is used or intended to be used for flight in the air.
Four forces of flight - Answer lift, weight, thrust, and drag
Three axes of an airplane - Answer 1. Lateral - pitch
2. Longitudinal - roll
3. Vertical - yaw
Lateral axis - Answer The horizontal line that passes through the center of gravity of the
aircraft, perpendicular to its flight path. (Controls pitch)
Longitudinal axis - Answer Parallel to the fuselage from nose to end of the plane;
perpendicular to the lateral axis. (Controls roll)
Vertical axis - Answer A straight line through the center of gravity of the aircraft and at 90° to
lateral and longitudinal axis. (controls yaw)
aeronautics - Answer the science of flight within the atmosphere
aerospace - Answer a combination of aeronautics and space
aviation - Answer the art, science, and technology of flight within the atmosphere
airfoil - Answer a component, such as a wing, that is specifically designed to produce lift,
thrust, or directional stability
camber - Answer the curved part of an airfoil from its leading to trailing edge
downwash - Answer the downward movement of air behind a wing in flight
leading edge - Answer The front, usually rounded, edge of an airplane wing or airfoil.
trailing edge - Answer The back edge of the wing
, relative wind - Answer the flow of air which moves opposite the flight path of an airplane
upwash - Answer the upward movement of air ahead of the wing in flight
vortex - Answer a spinning column of air that is created behind the wingtip as a result of air
moving from an area of high pressure on the bottom to an area of low pressure on top
wind - Answer the movement of air caused by differences in air pressure
Bernoulli's Principle - Answer as the velocity of a fluid increases, the pressure exerted by the
fluid decreases
coanda effect - Answer Fluids flowing close to a curved surface follow the shape of the
surface rather than a straight path
angle of attack - Answer The acute angle between the direction of the relative wind and the
chord of an airfoil.
altitude - Answer the height or distance above a reference plane (usually sea or ground level)
Convection - Answer The transfer of thermal energy by the circulation or movement of a
liquid or gas
density - Answer Mass per unit volume
glide ratio - Answer a mathematical relationship between the distance an aircraft will glide
forward to the altitude loss
lapse rate - Answer The rate at which temperature decreases with an increase in altitude.
soaring - Answer the art of staying aloft by exploiting the energy of the atmosphere
stability - Answer the atmosphere's resistance to vertical motion
combustion - Answer the chemical process of burning