DRAG DEMO
Drag Demo Lesson by wifiCFI
Objective
To determine that the applicant:
Exhibits instructional knowledge of the elements related to the effects of various airspeeds and configurations during engine inoperative performance by describing:
Selection of proper altitude for the demonstration.
Proper entry procedure to include pitch attitude, bank attitude, and airspeed.
Effects on performance of airspeed changes at, above, and below VYSE.
Effects on performance of various configurations:
Extension of landing gear.
Extension of wing flaps.
Extension of both landing gear and wing flaps.
Wind milling of propeller on inoperative engine.
Airspeed control throughout the demonstration.
Proper control technique and procedures throughout the demonstration.
To determine that the applicant:
Exhibits instructional knowledge of common errors related to the effects of various airspeeds and configurations during engine inoperative performance by describing:
Inadequate knowledge of the effects of airspeeds above or below VYSE and of various configurations on performance.
Improper entry procedures, including pitch attitude, bank attitude, and airspeed.
Improper airspeed control throughout the demonstration.
Rough and/or uncoordinated use of flight controls.
Improper procedures during resumption of cruise flight.
Demonstrates and simultaneously explains the effects of various airspeeds and configurations during engine inoperative performance from an instructional standpoint.
Analyzes and corrects simulated common errors related to the effects of various airspeeds and configurations during engine inoperative performance.
Flying the Maneuver – Set Up
Clear the area
Configure aircraft
Flaps and gear up
Prop set to high RPM
Select an altitude above 3,000’ AGL
Select an outside reference point
Flying the Maneuver – Performance
Reduce the Left Throttle to Idle
Maintain heading
Advance Right Throttle to Full
Maintain heading
Pitch for Vyse
Note climb performance
Simulate feather the failed engine (left)
Note climb performance
Slow below Vyse
Note climb performance
Accelerate above Vyse
Note climb performance
Return to Vyse
Extend the Landing Gear
Note climb performance
Retract Landing Gear and add 1 notch of Flaps
Note the climb performance
Extend second notch of Flaps
Note climb performance
Extend final notch of Flaps
Note climb performance
Extend the Landing Gear
Note climb performance
Flying the Maneuver – Recovery
Retract Flaps
Hold Vyse
Retract Gear
Hold Vyse
Return to cruise flight
Flying the Maneuver – Summary
Drag Demo is a demonstration manuever used to show a student the effects of differing aircraft configurations on single engine climb performance.
Common Errors
Failure to adequately clear the area
Improper starting altitude
Improper aircraft configuration
FAA Sources Used for This Lesson
Certified Flight Instructor Practical Test Standards