Reference:
Attention: The power-off 180 is a challenging maneuver, and also one of the most difficult to master.
Motivation:
Objective: The Student Should Develop Knowledge of The Elements Related to The Power-Off 180º Accuracy Approach and Landing.
Learning Objective (Index)
- Learning Objective (Index)
- Key Points
- What
- Why
- How
- Configure The Airplane
- Selecting a Touchdown Point
- Flaps at Discretion
- Common Errors
- ACS Standards
- Commercial Standards
Key Points
- Best Glide Airspeed
- Wind Correction
- Stabilized Approach
What
- An approach and landing made by gliding with the engine idling through a 180º pattern, begun abeam a specified touchdown point on the runway, to a touchdown at or within 200’ beyond that point.
Why
- It requires the development of skills and procedures necessary for accurately flying the plane, without power, to a safe landing.
How
Configure The Airplane
- Glide Airspeed
- Trim the Airplane
Selecting a Touchdown Point
- within the 1st third of the runway
- Choose an Aiming Point
Flaps at Discretion
- If the winds are strong or if you are far from the touchdown point, don’t use flaps until you have sure the point
- If you are too high, use flaps to increase your rate of descent without increasing airspeed
Common Errors
- Downwind leg is too far from the runway/landing area.
- Overextension of downwind leg resulting from a tailwind.
- Inadequate compensation for wind drift on base leg.
- Skidding turns in an effort to increase gliding distance.
- Failure to lower landing gear in retractable gear airplanes.
- Attempting to “stretch” the glide during an undershoot.
- Premature flap extension/landing gear extension.
- Use of throttle to increase the glide instead of merely clearing the engine.
- Forcing the airplane onto the runway in order to avoid overshooting the designated landing spot.
ACS Standards
Commercial Standards
- Complete the appropriate checklist.
- Make radio calls as appropriate.
- Plan and follow a flightpath to the selected landing area considering altitude, wind, terrain, and obstructions.
- Position airplane on downwind leg, parallel to landing runway.
- Correctly configure the airplane.
- As necessary, correlate crosswind with direction of forward slip and transition to side slip for landing.
- Touch down within -0/+200 feet from the specified touchdown point with no side drift, minimum float, and with the airplane’s longitudinal axis aligned with and over the runway centerline.