Sikorsky S-51 vs Bell Textron KH-4
Side-by-side aircraft model specifications (max across variants).
| Spec | Sikorsky S-51 | Bell Textron KH-4 |
|---|---|---|
| ICAO type | S51 | KH4 |
| MTOW | 2,200 kg | 1,200 kg |
| Range | 210 nm | 220 nm |
| Cruise speed | 70 kt | 76 kt |
| Service ceiling | 14,000 ft | 18,000 ft |
| Max seats | 4 | 4 |
| Length | 13 m | 10 m |
| Wingspan | — | — |
Sikorsky S-51
Bell Textron KH-4