| Manufacturer | Keystone-Loening |
| Model | Air Yacht |
| Modification | K-85 Air Yacht |
| Country | USA |
| Years | 1931 |
| Type | Flying boat |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 14.22 m |
| Length | 11.33 m |
| Height | - |
| Wing area | - |
| Zero fuel weight | - |
| Empty weight | 948 kg |
| Maximum takeoff weight | - |
| Normal takeoff weight | - |
| Flight duration | - |
| Engine | 1 Wright Cyclone |
| Power | 1 x 525 HP |
| Thrust | - |
| Maximum speed | 210 km/h |
| Cruising speed | 145 km/h |
| Rate of climb | - |
| Practical range | 805 km |
| Service ceiling | - |
| Hovering ceiling | - |
| Crew | 1 |
