HB-Flugtechnik HB 21 vs Boeing H-21
Side-by-side aircraft model specifications (max across variants).
| Spec | HB-Flugtechnik HB 21 | Boeing H-21 |
|---|---|---|
| ICAO type | — | — |
| MTOW | — | — |
| Range | — | — |
| Cruise speed | — | — |
| Service ceiling | — | — |
| Max seats | — | — |
| Length | — | — |
| Wingspan | — | — |
HB-Flugtechnik HB 21