| - | ACCIDENT DETAILS |
| Date: | March 18, 1939 |
| Time: | 1317 |
| Location: | Near Adler, Washington |
| Operator: | Boeing Aircraft Company |
| Flight #: | ? |
| Route: | Test flight |
| AC Type: | Boeing 307 Stratoliner |
| Registration: | NX19901 |
| cn / ln: | 1994 |
| Aboard: | 10 (passengers:8 crew:2) |
| Fatalities: | 10 (passengers:8 crew:2) |
| Ground: | 0 |
| Summary: | The aircraft crashed after the tail broke off. Dutch engineer A.G. von Baumhauer among those killed. He was a famous helicopter pioneer who first came up with the tail rotor/main rotor configuration which is in use today. Strructural failure of the wings and horizontal tail surfaces due t o the imposition of loads thereon in excess of those for which they were designed, the failure occurring in an abrupt pull-out from a dive following recovery from an inadvertent spin. |
Sources
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