Applied flight dynamics Kent State Exam 1

What two things make a standard atmosphere?

Pressure 29.92

Temperature 15C or 59F

Higher pressure equals?

More dense atmosphere

Higher temperature equals?

Less dense atmosphere

Indicated (IAS)

What is indicated on the gauge

Calibrated Airspeed (CAS)

IAS corrected for instrument + pilot position error

Equivalent Airspeed (EAS)

Calibrated airspeed corrected for compressibility effects

True Airspeed (TAS)

EAS corrected for density

Ground Speed (GS)

TAS corrected for wind direction and velocity

Indicated Altitude

Altitude read directly from the altimeter.

True Altitude

actual height of an object above mean sea level

Absolute Altitude

height above the surface (AGL)

Pressure Altitude

The height above the standard datum plane.

Density Altitude

The pressure altitude corrected for nonstandard temperature.

Below 18,000 feet atmosphere pressure changes at an approximate rate of

1 IN per 1000 feet

Below 18,000 feet density altitude changes at an approximate rate of

120 feet for each degree Celsius above or below ISA temperature

Below 18,000 feet atmospheric temperature changes at an approximate rate of

2 degrees Celsius per 1000 feet (1 degree per 500 feet)

Primary control surfaces control?

roll, pitch, and yaw

Secondary control surfaces are typically?

Flaps, Spoilers, Speed breaks, and Trim tabs

Angle of Attack

Angle between chord line and relative wind

Types of stalls

slow speed high AOA

Accelerated stall

Slow speed high AOA

Occurs most often during takeoff and landing. Starts at the trailing edge of the wing and progresses forward.

Accelerated Stall

Occurs with a sudden rapid increase in AOA. Pilot pulls back on the yoke or stick during a maneuver

Drag Types

Induced drag

Parasitic drag

Induced drag

Drag due to lift. Slow, clean, heavy you will have more induced drag

Parasitic drag

Skin friction, Form, Interference, leakage, profile

Induced drag is lower?

Lower at higher speeds

Parasitic drag is increased?

Higher speeds

b

Span in feet

Total distance from tip to tip

Cav

Average cord

Average distance leading edge to trailing edge in Inches

S

Area

In feet

AR

Aspect ratio

Cl

Coefficient of lift

L

Lift

In pounds

o looking thing

Air stream density ratio

S

Platform area

G

Load factor

V

Air stream velocity

Knots

W

Aircraft weight

Pounds

Theta

Bank angle

Di

Induced drag

Dp

Parasitic drag

AR=

b^2/S

S=

b X Cav

Cav=

S/b

AR=

b/Cav

b=

S/Cav