FAIRCHILD SWEARINGEN Swearingen SA-227AT Merlin 4 (SW4)
Published characteristics for the FAIRCHILD SWEARINGEN Swearingen SA-227AT Merlin 4 from the FAA Aircraft Characteristics Database, with its airport-design classifications per FAA AC 150/5300-13B Change 1. Values the FAA does not publish are shown as “—”. Plan conforming taxiway intersections and fillets for this aircraft in Taxi Stubber, or compare aircraft in the interactive lookup.
Design classifications
| Airplane Design Group (ADG) | II (computed per AC 150/5300-13B) |
| Taxiway Design Group (TDG) | 3 (FAA-assigned) |
| Aircraft Approach Category (AAC) | B |
Aircraft characteristics
| FAA designator | SW4 |
| ICAO code | SW4 |
| Manufacturer | FAIRCHILD SWEARINGEN |
| Model | Swearingen SA-227AT Merlin 4 |
| Approach speed | 112 kt |
| Wingspan (without winglets) | 59.4 ft |
| Wingspan (with winglets) | 59.4 ft |
| Length | — |
| Tail height | 16.7 ft |
| Wheelbase | 23.7 ft |
| Cockpit to main gear (CMG) | 23.7 ft |
| Main gear width (MGW) | 20.4 ft |
| Max takeoff weight (MTOW) | 15,999 lb |
| Max landing weight (MALW) | 15,675 lb |
Taxiway geometry for TDG 3
Per FAA AC 150/5300-13B Change 1, Appendix J, a taxiway designed for this aircraft's Taxiway Design Group uses:
| Taxiway width | R-Fillet (90°) | R-CL (90°) | R-Outer (90°) |
|---|---|---|---|
| 50 ft | 0 ft | 60 ft | 85 ft |
Example airports with runways for the FAIRCHILD SWEARINGEN Swearingen SA-227AT Merlin 4
Airports whose longest open paved runway is at least 5,000 ft long and 75 ft wide — an illustrative planning heuristic based on this aircraft's design group and maximum takeoff weight, not a performance calculation. Actual requirements vary with weight, weather, elevation, and operator rules. Browse all airports →
Design a taxiway for the FAIRCHILD SWEARINGEN Swearingen SA-227AT Merlin 4 →
Related aircraft
Source: FAA Aircraft Characteristics Database. For conceptual planning only — verify all values against current FAA publications and manufacturer documents. Browse all aircraft →