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Est 0.501 to 0.691

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Est 0.501 to 0.691
FF 136 - Les Locomotives francaises (Est) - Machine no 0503.jpg
0-8-0 Locomotive 0.503 'Gargamelle' of the Chemins de fer de l'Est
Type and origin
Power typeSteam
Builder
  • Le Creusot (84)
  • Graffenstaden (16)
  • Fives-Lille (16)
  • Ateliers d'Epernay (6)
  • SACM (44)
  • Cail (25)
Build date1856–1886
Total produced191
Specifications
Configuration:
​
 •  Whyte 0-8-0
 •  UIC D n2
Gauge 1,435 mm (4 ft 8+1⁄2 in)
Driver dia.1,250 mm (4 ft 1+1⁄4 in)
Wheelbase 3.95 m (13 ft 0 in)
Length
  • 0501–0525: 9.23 m (30 ft 3 in)
  • 0526–0691: 9.41 m (30 ft 10 in)
Adhesive weight 52 t (115,000 lb)
Loco weight46 t (101,000 lb)
Firebox:​
 • Type Crampton
 • Grate area1.92 m2 (20.7 sq ft)
Boiler pressure9 or 10 kg/cm2 (0.883 or 0.981 MPa; 128 or 142 psi)
Heating surface:​
 • Firebox9.90 m2 (106.6 sq ft)
 • Tubes178.10 m2 (1,917.1 sq ft)
 • Total surface188 m2 (2,020 sq ft)
Cylinders Two, outside
Cylinder size 500 mm × 660 mm (19+11⁄16 in × 26 in)
Valve gear Gooch
Performance figures
Maximum speed45 km/h (28 mph)
Power output780 CV (574 kW; 769 hp)
Tractive effort 11.8 or 13 t (26,000 or 28,700 lb)
Career
Operators
Power classEst series 9
Numbers
  • Est: 0.501 – 0.691
  • SNCF: 040 A 501 – 691
NicknamesEngerth

The Est 0.501 to 0.691, also denoted as Est 0501 to 0691, was a class of 191 French 0-8-0 locomotives for freight service, built from 1856 to 1886 for the Chemins de fer de l'Est . [1]

Contents

Construction history

The 25 locomotives of the first batch were originally delivered as 0-8-4 Engerth locomotives by Le Creusot in 1856–1857, [2] with the fleet numbers 0.164 to 0.188. [3] Due to the inherent inconveniences of the Engerth system, particularly in case of derailments, the decision was taken to rebuild these engines into locomotives with separate tenders, at which point they were also renumbered 0.501 to 0.525. [4] Additionally the adhesive weight could be increased from 39.3 to 45.5 tons. The rebuilding work was carried out in the Est Company's workshops at Épernay from 1860 to 1868. [2]

The wide firebox of the Engerth machines necessitated it to be placed outside of the wheels and therefore resulted in a large overhang, which had to be compensated on the rebuilt machines with a counterweight of 1,100 kg (2,425 lb) in the front of the engine. [5] [6] The counterweight was reduced to 800 kg (1,764 lb) in the following 38 machines of the subsequent orders from 1866 to 1872, and then finally omitted on the later series from 1880. [5]

The subsequent batches were ordered with some differences from various manufacturers from 1866 to 1884. [1]

Date orderedDate deliveredQty.Est NumbersTypeManufacturerSerial numbers
11 April 18541856–1857250.501 – 0.52524 Schneider - Le Creusot222–246
25 January 18661866–1867160.526 – 0.54131Graffenstaden403–418
21 March 18661869160.542 – 0.55734 Fives-Lille 1668–1683
1870–18721872–187360.558 – 0.56337Épernay Works114–119
12 April 18801881120.564 – 0.57544 SACM - Graffenstaden3021–3032
7 July 18801881–1882200.576 – 0.59544SACM - Graffenstaden3118–3127, 3071–3080
12 January 18841886460.596 – 0.64144Schneider - Le Creusot2284–2293, 2308–2343
17 April 18841886250.642 – 0.66644Anciens Établissements Cail2221–2245
24 April 18841886120.667 – 0.67844SACM - Belfort3776–3787
24 April 18841886130.678 – 0.69144Schneider - Le Creusot2400–2412

The locomotives of the first series were named after fictional characters from the works of Rabelais: [1] [7]

The locomotives of the series 0.526 – 0.541 were given the following names: [7]

References

  1. 1 2 3 Gillot (1976), pp. 189–191.
  2. 1 2 Vilain (1980), pp. 145–149.
  3. ↑ Davies (2001), pp. 37–38.
  4. ↑ Davies (2001), pp. 30–31.
  5. 1 2 Deghilage (1883), pp. 286–291.
  6. ↑ Demoulin (1898), pp. 130–132.
  7. 1 2 Vilain (1980), p. 279.

Bibliography


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