Wilhelm Calidus near Thompsonville, MI — 2011-10-07
- Date
- 2011-10-07
- Location
- Thompsonville, MI, USA
- Airport
- 7Y2
- Aircraft
- Wilhelm Calidus
- Registration
- N455BW
- Category
- Gyroplane
- Highest injury
- None
- Fatalities
- 0
- Phase of flight
- Landing
Probable cause
The pilot 's inability to maintain control of the gyrocraft during the landing roll for undetermined reasons.
NTSB narrative
The pilot stated that the takeoff seemed normal but that on the downwind leg of the traffic pattern the gyrocraft tended to roll to the right and he had difficulty keeping it level. He completed the traffic pattern and successfully touched down on the runway. However, after landing, he was unable to maintain control. The gyrocraft departed the runway pavement and rolled onto its right side. A postaccident examination confirmed flight control continuity throughout the system. No preaccident mechanical malfunctions or failures were found that would have precluded normal operation. Documentation indicated that the gyrocraft was loaded within approved weight and balance limitations at the time of the accident. The pilot reported that this was his first flight in the gyrocraft and it was intended to be the first full flight of the required flight test operations phase. He noted that a mechanic had conducted 3 momentary flights over the runway after the gyrocraft had been completed.
Analysis
- Primary failure mode
- Loss of control
- First missed decision gate
- Pilot could have aborted the landing when experiencing control difficulties.
NTSB coding
Evidence available
- 6 docket documents
Docket documents6
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