8.3 Flashcards
What is a glide ratio
It is the sum of the forward speed divided by the sink speed
What happens when forces are not in balance
A RESULTANT FORCE will then exist
An aircraft is trimmed so that when in equilibrium what happens
The life is equal to the weight the vertical force is 0 so the aircraft doesn’t accelerate or decelerate
Primary Factors most affected by performance
The take off and landing distance
Rate of climb
Ceiling
Payload
Range
Speed
Manoeuvrability
Stability
Fuel economy
Unit of power
Watts
Unit of thrust
Newton
What are the 3 principles which values of specific range versus speed
Aircraft gross weight
Altitude
The external aerodynamics configuration of the aircraft
When an aircraft turns or tilt its called what
Banking which makes it turns
What is aeroelstic
It’s to do with the interaction between the inertial, elastic and aerodynamic forces when an elastic body is exposed to a fluid flow
What is aeroelastic limit frequently referred to as
Recline airspeed
What are lift augmentation
It’s a devise installed on a wing to produce increase in the lift. It’s useful at low speed which reduces stall speed of an aircraft
What are the principle lift augmentation devices used to increase the clmax
Flaps
Slats and slots
Boundary layer control
Which flaps r better for leading edge
Fowler flaps r better has it as 95% of increase of max life at 15° AOA
other flaps r slotted flap
Split flaps and plain flaps
What is a krueger flaps
Located on the leading edge and its a high lift device
