Traffic Pattern Stalls and Hazards Flashcards
What are the indications for being slightly fast in the traffic pattern with the gear down?
- 0.55 AOA
- Yellow Chevron
- FPM on top of AOA staple
What are the indications for being on speed in the traffic pattern with the gear down?
- Light buffet
- Green Donut
- 0.6 AOA
What are the indications for being slightly slow in the traffic pattern with the gear down?
- 0.65 AOA
- Red chevron
- FPM on bottom of staple in HUD
What are the indications for being slow in the traffic pattern with the gear down?
- 0.75 AOA
- Moderate Buffet
- Red Chevron only
What are the indications for being very slow in the traffic pattern with the gear down and getting a stall warning?
- DIBI - Definite increase in buffet intensity
- 0.8 AOA
- STALL on the HUD
What are the indications for being deathly slow in the traffic pattern with the gear down and getting a stall wanring?
- 1.0 AOA
2. Heavy buffet
How does the T-38s symmetric wing affect buffet?
The onset of the buffet occurs much earlier and is more gradual along the AOA curve compared to cambered wings
What is an approach to stall generally indicated by?
Low frequency buffet and usually a moderate wing rock
How do you recover from a stall?
Simultaneously:
MAX, RELAX, ROLL
How do you identify a high sink rate?
More difficult to recognize than a stall:
- Seat of the pants
- Check VVI (primary indication)
How do you recover from a high sink rate?
- Backstick pressure as necessary
- Roll wings level
- Advance throttles to MAX
What can wake turbulence induce?
Roll motions that can result in a stall
How many minutes/miles should you allow before takeoff behind a large type aircraft?
2 minutes
How many minutes/miles should you allow before takeoff behind a heavy type aircraft?
4 minutes
What type of g-limits do you use when flying through jet wash and what is the max for the T38?
Use Asymmetric G-Limits
4.0 G
What is Low Level Wind Shear typically associated with?
- Weather Fronts
- Thunderstorms
- Temperature Inversions
- Surface Obstructions
What are the primary hazards of the approach to stall in the T-38?
Large induced drag leads to a rapid loss of airspeed and creates an excessive sink rate and loss of aileron control/effectiveness
How do you recover from an APPROACH to stall?
Relax backstick pressure just short of the increase in buffet, roll wings level, throttles to MAX and do not change configurations (flaps included)
What potential hazards occur from using the rudder in the traffic pattern?
With the gear down, the rudder can move +/- 30 degrees. At high AOA, the rudder is extremely efficient at rolling the aircraft.
What is a cross-control stall?
When applying rudder in one direction and attempting to counteract the rolling motion created by the rudder with opposite aileron, an increase in AOA occurs leading to loss of effectiveness of the ailerons
When taking off behind a large or heavy aircraft, how do you adjust your flight path?
Take off before the preceding aircraft and remain above its flight path
How can you “avoid” windshear?
Analyze wind information on your MFD
PIREPS
LLWAS
