Est 4003 to 4175 was a class of 173 French compound 2-8-0 locomotives built in the early years of the 20th century for the Chemins de fer de l'Est. They were built to handle the increasing output of the steel industry in the Lorraine area.
Origins The locomotives were developments of the prototypes 4001 et 4002 which had been built for the Est by Société alsacienne de constructions mécaniques (SACM) in 1902. They were built in three batches, with the first two built by the Est's Épernay Works, and the third built by the various private contractors:
The first series, 4003 to 4017, entered service in 1905–1906 and were identical to the prototypes 4001 and 4002. The second series, 4018 to 4070, entered service between 1907 and 1909 and only differed from the first batch due to alterations in the steam passages. The third and last series, 4071 to 4175, were delivered between 1911 and 1914 and were fitted with a 21-element Schmidt superheater.
+ Table of orders Manufacturer Works No. Year Est no. SNCF no. Épernay Works 510–524 1905 4003–4017 1-140.A.3 – 17 Épernay Works 555–570 1907 4008–4033 1-140.A.18 – 33 Épernay Works 511–587 1908 4034–4050 1-140.A.34 – 50 Épernay Works 606–625 1909 4051–4070 1-140.A.51 – 70 Épernay Works 671–680 1911 4071–4080 1-140.A.71 – 80 Épernay Works 681–690 1912 4081–4089 1-140.A.81 – 90 Henschel & Sohn 10635–10654 1911 4091–4110 1-140.A.91 – 110 Sächsische Maschinenfabrik 3505–3524 1911 4111–4130 1-140.A.111 – 130 Fives-Lille 3939–3968 1913 4131–4160 1-140.A.131 – 160 ANF 106–120 1914 4161–4175 1-140.A.161 – 175
Description The Consolidations were four-cylinder compound locomotives with Walschaerts valve gear. They were provided with a Belpaire firebox, Adams piston valves, and an Est-type horizontal regulator.
Tenders Originally these were two-axle tenders which held of water and of coal; they had a gross weight in working order of . The 4091 to 4175 were equipped from new with three-axle tenders with a capacity of of water and of coal; weight in working order was . These tenders were gradually assigned to the earlier locomotives.
Usage and services They became the Est's standard heavy 2-8-0 freight locomotive and were designed to haul heavy trains. They were allocated to many of the depots in Eastern France, like Nancy, Bar-le-Duc, Reims, Troyes, Saint-Dizier, Vesoul, Belfort, Châlons, and others. On an easy grade, the superheated locomotives were able to move a train at , with peaks of possible. They could pull a train at up a 20.0 to 22.5 per mille (2.00 to 2.25 percent / 1 in 50 to 1 in 44.4) grade.
All were still in service at nationalisation, and they were renumbered by the SNCF as 1-140.A.3 to 1-140.A.175.
Between 1932 and 1946 several were rebuilt with larger steam passages, a 6-jet exhaust system and smoke deflectors. These "Chapelonised" locomotives were reclassified from A to C by the SNCF.
They became the Est's standard heavy 2-8-0 freight locomotive Being a standard Est locomotive class, they stayed in service until they were replaced by the SNCF 141R class locomotives during the period 1948–1951. All were withdrawn by 1954 and none were preserved.
Characteristics
Overall length (loco only): Maximum theoretical tractive effort: (4003 – 4070), (4071 – 4175) Maximum practical tractive effort:
Tender
Length of tender: (4091 – 4175) Length of loco and tender: (4091 – 4175)
References