37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 1499761 |
Time | |
Date | 201711 |
Local Time Of Day | 0601-1200 |
Place | |
Locale Reference | ZZZ.TRACON |
State Reference | US |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Make Model Name | Decathlon 8KCAB |
Operating Under FAR Part | Part 91 |
Flight Phase | Cruise |
Flight Plan | None |
Person 1 | |
Function | Instructor |
Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Multiengine Flight Crew Instrument |
Experience | Flight Crew Last 90 Days 40 Flight Crew Total 2100 Flight Crew Type 100 |
Events | |
Anomaly | Deviation - Procedural Published Material / Policy Inflight Event / Encounter Loss Of Aircraft Control |
Narrative:
Flight was an aerobatic instructional flight. The plan was to remain VMC and at or above 1;500 ft at all times. Aerobatic maneuvers were entered at 2;000-2;500 ft to maintain a 1;500 ft floor. During a half cuban 8; with the instructor (myself) at the controls; I inadvertently entered an inverted spin at the top of the maneuver. I recovered at about 700 ft AGL.on the upline of the entry; I heard the stall horn go off. I eased off a bit and the aircraft went over the top fine. I was uncoordinated in my roll; and entered the spin. I need to remember that loaded maneuvers increase stall speed and impart a yaw -hence a spin. I recovered using the meigs-bueller method (throttle-idle; hands off) as I couldn't tell which way we were spinning from the back seat of the decathlon.
Original NASA ASRS Text
Title: An American Champion Decathlon pilot reported inadvertently entering a spin condition while performing aerobatic maneuvers. A successful spin recovery was accomplished.
Narrative: Flight was an aerobatic instructional flight. The plan was to remain VMC and at or above 1;500 ft at all times. Aerobatic maneuvers were entered at 2;000-2;500 ft to maintain a 1;500 ft floor. During a half Cuban 8; with the instructor (myself) at the controls; I inadvertently entered an inverted spin at the top of the maneuver. I recovered at about 700 ft AGL.On the upline of the entry; I heard the stall horn go off. I eased off a bit and the aircraft went over the top fine. I was uncoordinated in my roll; and entered the spin. I need to remember that loaded maneuvers increase stall speed and impart a yaw -hence a spin. I recovered using the Meigs-Bueller method (throttle-Idle; hands off) as I couldn't tell which way we were spinning from the back seat of the Decathlon.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.