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Description
| Manufacturer: | Douglas |
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| Base model: | O-31 | ||
| Designation: | YO-31 | ||
| Version: | C | ||
| Designation System: | U.S. Air Force | ||
| Designation Period: | 1924-1942 | ||
| Basic role: | Observation | ||
| Status: | Prototype | ||
Specifications
| Not Yet Available |
Known serial numbers
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Description
Specifications
Known serial numbers | |||||||||||||||||||||||||||
