Chapter 8 Emergency Procedures Flashcards
What is PIO?
POI = Pilot Induced Oscillations
Pilot does not account for the delay in control response leading to overcontrolling and hunting to find desired response.
What is porpoising?
PIO on landing leading to touchdown - takeoff- touchdown -takeoff ….
How to counter POI?
Enter control input and then relax when response starts. Go to neutral before attaining desired response.
Takeoff POIs. What response level is required at slow speeds?
Larger input. Tapering off as speed increases.
What is the effect of the tow rope length?
Short ropes require quick and frequent control input. Use 200’ length.
What effect does crosswind have on take-offs?
Wind on rudder will push front of glider into the wind. Weather vaning.
When should lift off occur?
When glider reaches flying speed is reached. Hold glider down until then then let it take off by itself.
What typically happens during lift off?
Quick lift-off due to ground effects followed by descent when ground effect diminishes.
How should wings be maintained on take 0ff?
Keep them level. Don’t try to control direction with them while on or close to the ground.
What happens when the wing tips touch the ground.
A gound loop will occur where the glider will rotate in the direction of the wing that hits the ground.
Why is there a delay in yaw at low speeds on takeoff?
The inertia of the wings wants to keep them going in that direction. Relax rudder once glider starts moving in the desired direction
How does towline tension affect pitch?
More tension will cause pitch to increase. Dependent on the location of the hook relative to the longitudinal axis.
What effect can pneumatic tires have take off and landing?
Susceptible to bounce when hitting bumpy terrain.
What are the 3 scenarios of tow failure?
- Sufficient runway to land and stop
- Landing straight ahead
- Above 200’ AGL
If there is sufficient runway to land and stop, what should the glider do?
Land and roll out to the right of the tow plane.
