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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Pilot of aerobatic biplane doing low altitude aileron rolls miscalculates airspeed and when inverted drops sharply going off heading. Recovers about 500 ft AGL flying over several buildings.
| Attributes | |
| ACN | 409115 |
| Time | |
| Date | 199807 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : myv |
| State Reference | CA |
| Altitude | agl bound lower : 500 agl bound upper : 500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 92 flight time total : 16000 flight time type : 160 |
| ASRS Report | 409115 |
| Events | |
| Anomaly | other anomaly other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While flying level over an open field, I performed a normal aileron roll. I decided to make a 180 degree turn and do another roll over the same field. I lost more airspeed than anticipated in the turn and started the roll at a lower than normal speed. When inverted, the nose dropped sharply and about 40 degrees off my initial heading. I lost several hundred ft, recovering about 500 ft AGL. The resulting flight path took me over several buildings at a much lower altitude than I would normally fly.
Original NASA ASRS Text
Title: PLT OF AEROBATIC BIPLANE DOING LOW ALT AILERON ROLLS MISCALCULATES AIRSPD AND WHEN INVERTED DROPS SHARPLY GOING OFF HDG. RECOVERS ABOUT 500 FT AGL FLYING OVER SEVERAL BUILDINGS.
Narrative: WHILE FLYING LEVEL OVER AN OPEN FIELD, I PERFORMED A NORMAL AILERON ROLL. I DECIDED TO MAKE A 180 DEG TURN AND DO ANOTHER ROLL OVER THE SAME FIELD. I LOST MORE AIRSPD THAN ANTICIPATED IN THE TURN AND STARTED THE ROLL AT A LOWER THAN NORMAL SPD. WHEN INVERTED, THE NOSE DROPPED SHARPLY AND ABOUT 40 DEGS OFF MY INITIAL HDG. I LOST SEVERAL HUNDRED FT, RECOVERING ABOUT 500 FT AGL. THE RESULTING FLT PATH TOOK ME OVER SEVERAL BUILDINGS AT A MUCH LOWER ALT THAN I WOULD NORMALLY FLY.
Data retrieved from NASA's ASRS site as of July 2007 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.