WmB

Question 1

the ability of an aircraft to accomplish
certain things that make it useful for
certain purposes.

Answer 1

AIRCRAFT PERFORMANCE

Question 2

Performance varies due to several factors such as

Answer 2

■ temperature
■ air density
■ weight
■ humidity

Question 3

Standard Temperature:

Answer 3

15°C

Question 4

Standard Pressure:

Answer 4

29.92 “Hg or 1013.2 mb

Question 5

Standard Temperature Lapse Rate:

Answer 5

1.98 °C/1000 feet up

Question 6

Standard Pressure Lapse Rate:

Answer 6

1 “Hg/1000

Question 7

the height above the standard datum plane (SDP).

Answer 7

PRESSURE ALTITUDE

Question 8

the vertical distance above sea level in the standard atmosphere at which a given
density is to be found.

Answer 8

DENSITY ALTITUDE

Question 9

As the density of the air increases, _________________________

Answer 9

aircraft performance increases.

Question 10

As the density of the air decreases, _________

Answer 10

aircraft performance decreases.

Question 11

“As density altitude increases, aircraft performance _______”

Answer 11

Decreases

Question 12

It is directly proportional to
pressure.

Answer 12

Density

Question 13

As pressure increases, density ___”

Answer 13

Increases

Question 14

As temperature increases, density ____

Answer 14

Decreases

Question 15

the amount of water vapor contained in
the atmosphere and is expressed as a percentage of the maximum amount of water
vapor the air can hold.

Answer 15

Humidity

Question 16

As humidity increases, density ____”

Answer 16

Decreases

Question 17

obtained when the power or thrust required equals
the maximum power or thrust available from the
powerplant.

Answer 17

Maximum level flight speed

Question 18

“As altitude increases, performance _______”

Answer 18

Decreases

Question 19

It occurs when you have the greatest amount of flying time for the
least amount of fuel.

Answer 19

Maximum Endurance

Question 20

It occurs when you get the greatest distance for a given amount of fuel.

Answer 20

Maximum Range

Question 21

The amount of power that is applied to
the brakes without skidding the tires

Answer 21

Braking Effectiveness

Question 22

The amount of change in runway height over the length of the runway.

Answer 22

Runway Gradient or Slope

Question 23

This is a condition in which the aircraft
tires ride on a thin sheet of water rather
than on the runway’s surface.

Answer 23

Hydroplaning

Question 24

Effects of Increased weight on takeoff:

Answer 24

● higher lift-off speed
● greater mass to accelerate
● increased drag and ground friction

Question 25

Effects of Increased weight on landing

Answer 25

● higher approach speed
● more runway used to decelerate
● wear and tear on brakes

Question 26

Effects of takeoff (headwind)

Answer 26

• lower groundspeed needed to
  reach rotation speed
• shorter ground roll

Question 27

Effects of takeoff (tailwind)

Answer 27

higher groundspeed needed to
reach rotation speed

longer ground roll

Question 28

Effects if landing (headwind)

Answer 28

○ less ground roll
○ ground speed is lower at touchdown

Question 29

Effects of landing (tailwind)

Answer 29

○ increased landing roll
○ ground speed is higher at touchdown

Question 30

Effects of T/O below rotation speed:

Answer 30

■ T/O below rotation speed:
● aircraft could stall
● difficult to control
● low initial rate of climb

Question 31

Effects of T/O above rotation speed:

Answer 31

● improved initial rate of climb and “feel”
of the aircraft
● increase in takeoff distance

Question 32

Effects of Landing below specified speed

Answer 32

● aircraft may stall
● difficult to control
● develop high rates of descent

Question 33

Landing above specified speed

Answer 33

● improves controllability slightly
(especially in crosswinds)
● increase in landing distance

Question 34

An increase in density altitude on takeoff:

Answer 34

● greater takeoff speed

● decreased thrust and reduced accelerating force

Question 35

Increase in density altitude on landing:

Answer 35

● increased landing speed but does not alter retarding force

Question 36

○ Examples of Performance Charts:

Answer 36

■ Airspeed Calibration
■ Temperature Conversion
■ Wind Component Chart
■ Density Altitude Chart
■ Takeoff Distance
■ Landing Distance
■ Rate of Climb
■ Time, Fuel, Distance to Climb
■ Range Profile
■ Endurance Profile