 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (March 2017) |
| Model 200 and 221 Monomail | |
|---|---|
.jpg) Model 200 | |
| General information | |
| Type | Airliner |
| National origin | United States |
| Manufacturer | Boeing |
| Status | Retired |
| Primary user | United Airlines |
| Number built | 1 Model 200 1 Model 221 |
| History | |
| First flight | 6 May 1930 |
| Retired | 1933 |
| Developed into | Boeing YB-9 |
The Boeing Model 200 Monomail was an American mail plane of the early 1930s.