4401 to 4402
- Axle: D't
- Total quantity: 2
- Year: 1928
- Manufacturer: Schwartzkopff. Works Numbers 9202, 9201 (sic. as noted from plates, April 1956. On another occasion 4402 noted as Works Number 9199)
Engine main characteristic
| Engine axle type | D't |
| Weight empty | 49 T |
| Weight service | 60 T |
| Max. axle load | 15 T |
| Wheels (coupled) | 1250 mm |
| Number of cylinders | 2 |
| Cylinder dia | 560 mm |
| Piston stroke | 630 mm |
| Pressure | 12 kg/sq.cm |
| Grate surface | 2.1 m2 |
| Heating surface firebox | 10 m2 |
| Heating surface tubes | 133.5 m2 |
| Tractive effort | 12300 kg |
Pictures
4402 at the Adana shed. Photo: unknown (TCDD?), published in "Steam in Turkey", p61 | 
4401, Eskişehir. 19th April 1956. Photo Alan Swale |