PKP class Pt47
PKP Pt47 | |
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Pt47 locomotive | |
Type and origin | |
Power type | Steam |
Builder |
Fablok (120) nos. 1–100, 161–180 Cegielski (60) nos. 101–160 |
Build date | 1948–1951 |
Total produced | 180 |
Specifications | |
Configuration | 2-8-2 |
UIC classification | 1′D1′ h2 |
Gauge | 1,435 mm (4 ft 8 1⁄2 in) |
Leading wheel diameter | 1,000 mm (39.37 in) |
Driver diameter | 1,850 mm (72.83 in) |
Trailing wheel diameter | 1,200 mm (47.24 in) |
Length | 23.835 m (78 ft 2 in) |
Axle load | 18.7 tonnes (18.4 long tons; 20.6 short tons) |
Weight on drivers | 83.2 tonnes (81.9 long tons; 91.7 short tons) |
Locomotive weight | 105.5 tonnes (103.8 long tons; 116.3 short tons) |
Tender type | 27D48 |
Tender capacity | 10.0 tonnes (9.8 long tons; 11.0 short tons) |
Boiler pressure | 15 kg/cm2 (1.47 MPa; 213 psi) |
Firegrate area | 4.49 m2 (48.3 sq ft) |
Heating surface: – Firebox | 19.8 m2 (213 sq ft) |
– Total | 230.2 m2 (2,478 sq ft) |
Superheater area | 100.5 m2 (1,082 sq ft) |
Cylinders | Two, outside |
Cylinder size | 630 mm × 700 mm (24.80 in × 27.56 in) |
Performance figures | |
Maximum speed | 110 km/h (68 mph) |
Tractive effort | 200 kN (44,960 lbf) |
Career | |
Operator(s) | PKP |
Class | Pt47 |
Number(s) | Pt47-1 to Pt47-180 |
Locale | Poland |
PKP Class Pt47 is a Polish steam locomotive. Related to the successful PKP class Pt31 class, the main difference is the addition of circular tubes in the fire chamber, thereby significantly increased boiler performance. This class also featured a superheater and many have mechanical stokers to feed coal into the firebox. 180 locomotives were built in total.[1]
Although heavy, the Pt47 is powerful and fast. Its main use was to carry heavy fast trains, especially on long distance routes, for example on the difficult route from Cracow to Krynica.
The Pt47 easily reached speeds of 100 km/h (62 mph), with a heavy train, although is not as refined as the PKP class Pm36 - especially on routes with a lower quality track. A maximum speed of 110 km/h (68 mph) could be achieved even with a train of 600 tonnes (590 long tons; 660 short tons). In the 1950s these machines were could travel 824 km (512 miles) per day.
References
Wikimedia Commons has media related to PKP class Pt47. |
- "Pt47 article at Steam locomotives site". Retrieved February 20, 2006.
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