Bäumer B III "Alsterwind" |

| Type | 2-seated biplane development from the B II |
| Engine | 1 Wright L4 |
| Dimensions | Length 5.93 m, span 8.20 m, wing area 17.90 m2, aspect ratio 3.7 |
| Weights | Empty 295 kg, fuel 87 kg, oil 3 kg, crew 150 kg, load 240 kg, flying weight 535 kg, wing loading 29.9 kg/m2 |
| Performance | Max. speed 135 km/h, cruising speed 125 km/h, climb to 1000 m 5 min., climb 2.9 m/sec., range 800 km |