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