Flashcards in Aviation Deck (186)
The flight envelope of an aircraft is
The region of altitude and airspeed in which it can be operated.
The locus of points equidistant from the upper and lower surfaces of an airfoil is called the
Mean camber line
The straight line joining the ends of the mean camber line is called the
A(n) _____ is the point at which the airflow over the wings ceases to be a smooth (laminar) flow and the wing starts to lose lift.
The two basic types of drag are
Parasitic and induced
An airfoil's efficiency, either a wing or a rotor blade, is _____ at high altitudes by the _____ air density.
The degree of movement of an aircraft around is lateral axis is known as
When the flaps are extended, the camber of the wing is
A helicopter's cyclic control is a mechanical linkage used to change the pitch of the main rotor blades
At a selected point in its circular pathway
When the rotor blades of a helicopter are spinning fast enough in a clockwise direction to generate lift, a phenomenon known as _____ causes the body of the helicopter to have a tendency to turn in a counter-clockwise direction.
Pulling back on the control column or joystick of a fixed-wing aircraft will cause the aircraft to
Contra-rotating propellers, a complex way of applying the maximum power of a single piston or turboprop aircraft engine, uses two propeller
Rotating in opposite directions arranged one behind the other
The abbreviation VTOL, applied to aircraft other than helicopters, means
Vertical Take-Off and Landing
Delta wing aircraft have a wing in the form of a triangle, named after the Greek uppercase letter delta, and no
The Visual Approach Slope Indicator (VASI) is a system of lights designed to provide visual descent guidance information to the pilot during a runway approach. The system uses _____ lights to indicate the upper limits of the glide path and _____ lights for the lower limits.
A biplane has
Two wings arranged one above the other.
A coordinated turn (change of heading direction) includes both _____ of the airplane.
Roll and yaw
_____ is induced by use of a movable rudder controlled by _____ in the cockpit.
Yaw, rudder pedals
Moving the control column or joystick to the left or right affects the _____ rather than indicating the
Rate of roll, angle to which the aircraft will roll.
Which one of the following is NOT a flight instrument?
A flashing green ATC signal directed to an aircraft on the surface is a signal that the pilot
Is cleared to taxi.
What is the difference between a steady red and a flashing red light signal from the tower to an aircraft approaching to land?
A steady red light signals to continue circling and a flashing light signals that the airport is unsafe for landing.
The propeller blades are curved on one side and flat on the other side to
What makes an airplane turn?
Horizontal component of lift.
If the elevator trim tabs on a plane are lowered, the lane will tend to
The pilot of an airplane can best detect the approach of a stall by the
Ineffectiveness of the ailerons and elevator.
What do "X's" on an airport diagram represent?
What is the propeller rotated by
What is the elevator trim tab
a small auxiliary control surface hinged at the trailing edge of the elevators