MACDONALD S-21 vs Sonex Aircraft Onex
Side-by-side aircraft model specifications (max across variants).
| Spec | MACDONALD S-21 | Sonex Aircraft Onex |
|---|---|---|
| ICAO type | S21 | ONEX |
| MTOW | 400 kg | 500 kg |
| Range | 250 nm | — |
| Cruise speed | 78 kt | — |
| Service ceiling | — | 16,000 ft |
| Max seats | 1 | 1 |
| Length | 6 m | 5 m |
| Wingspan | 8 m | 6 m |
MACDONALD S-21
Sonex Aircraft Onex