-
What force opposes and controls the adverse pressure gradient?
The kinetic energy of the relative wind
-
What is the definition of boundary layer separation?
Point in streamline where airflow no longer adheres to the airfoil
-
Which flight control would you expect to be most effective during a stall/stall recovery?
Rudder
-
How do you think increased G loading will affect stall airspeed?
Stall airspeed increases
-
If the aircraft is in a stall, what could happen if you misapply the controls or if the aircraft is out of trim?
Aircraft could enter a spin
-
During a spin, what will happen if the ailerons are deflected in spin direction?
Roll and yaw will become more oscillatory
-
Lower pitch attitude at stall results in higher stall airspeed (greater energy) which results in a ____ spin entry airspeed and____ oscillations.
faster; greater
-
What are the two main hazards associated with wake turbulence?
Induced roll and induced flow field
-
Power-off stall characteristics:
- Power - idle
- Stall airspeed - higher
- Stall warning - closer to stall
- Roll tendency - right
- Yaw characteristic - less oscillation
-
Power-on stall characteristics:
- Power - above idle
- Stall airspeed - lower
- Stall warning - Further from stall
- Roll tendency - left
- Yaw characteristic - more oscillation
-
What is the order of lost controls in a stall?
-
Aerodynamic stall warning airspeed.
- Power-off - 3 knots above stall speed
- Power-on - slightly more than 3 knots above stall speed
-
TAD operations during a stall
Large system demands, rudder pedal feedback, helps directional stability, slows adverse yaw
-
2 key differences between power on & off stalls.
- Vertical component of thrust increases lift & decreases stall speed
- Prop acceleration factor increases flow over wings & decreases stall speed
-
Boundary layer in T6 starts to separate when?
15 units AOA
-
T-6 windshear recovery procedures:
- PCL MAX
- 15 degrees nose up (minimum)
- Do not allow <110KIAS or >10.5 AOA
- If you're going to crash, consider ejecting
- Once climb established, raise flaps & gear
- Don't rely solely on VSI for climb info
- Once in positive climb, reduce pitch in anticipation of exiting downdraft
-
T6 windshear procedures on landing
- Use Flaps takeoff
- Increase approach speed by predicted shear (up to 10)
- Establish approach pitch, trim and power by 1000 AGL
- Accept higher airspeeds, use pitch & trim for glidepath
-
T6 winshear procedures on takeoff
- Use a long runway with few obstacles
- Use TO flaps but delay rotation by amount of shear (up to 10)
- Rotate to normal climb attitude at VROT+10 and hold that attitude
- If windshear encountered near VROT, abort if possible
-
Windshear PIREP should include what?
Location, magnitude, description of what happened
-
What can happen if a pilot is slow to recognize an increasing performance windshear on approach?
A steep, fast approach can quickly develop
-
Encountering a decreasing performance windshear on landing can have what effects?
Cause the aircraft to pitch down & descend below glidepath
-
Failing to recognize decreasing performance windshear can have what effects?
Cause the aircraft to impact short of the runway
|
|
