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| Manufacturer | Arup |
| Model | Arup S-1(4) |
| Modification | S-2 |
| Country | USA |
| Years | 1932 |
| Type | Experimental aircraft |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 5.80 m |
| Length | 4.80 m |
| Height | - |
| Wing area | 19.00 m2 |
| Zero fuel weight | - |
| Empty weight | - |
| Maximum takeoff weight | 350 kg |
| Normal takeoff weight | - |
| Flight duration | - |
| Engine | 1 Continental А-40 |
| Power | 1 x 36 HP |
| Thrust | - |
| Maximum speed | 155 km/h |
| Cruising speed | - |
| Rate of climb | - |
| Practical range | - |
| Service ceiling | - |
| Hovering ceiling | - |
| Crew | - |
