# FS Class 310 > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/FS_Class_310 > Markdown URL: https://mediated.wiki/source/FS_Class_310.md > Source: https://en.wikipedia.org/wiki/FS_Class_310 > Source revision: 1276439442 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) FS Class 310 Type and origin Power type Steam Builder Ernesto Breda (49), MÁVAG (20) Build date 1894–1901 Total produced 69 Specifications Configuration: ​ • UIC C n2v Gauge 1,435 mm (4 ft 8+1⁄2 in) standard gauge Driver dia. 1,500 mm (59.06 in) Length 8,723 mm (28 ft 7+3⁄8 in) Axle load 14.5 tonnes (14.3 long tons; 16.0 short tons) Loco weight 43.5 tonnes (42.8 long tons; 48.0 short tons) Tender weight 33 tonnes (32 long tons; 36 short tons) Fuel type Coal Fuel capacity 4,000 kg (8,800 lb) Water cap. 12,000 litres (2,600 imp gal; 3,200 US gal) Firebox: ​ • Grate area 1.8 m2 (19 sq ft) Boiler pressure 12 kg/cm2 (1.18 MPa; 171 psi) Heating surface 143.2 m2 (1,541 sq ft) Cylinders Two, compound High-pressure cylinder 460 mm × 640 mm (18.11 in × 25.20 in) Low-pressure cylinder 650 mm × 640 mm (25.59 in × 25.20 in) Valve gear Walschaerts Performance figures Maximum speed 60 km/h (37 mph) Power output 500 CV (368 kW; 493 hp) at 30 km/h (19 mph) Tractive effort 6,620 kgf (64.9 kN; 14,600 lbf) The [Ferrovie dello Stato Italiane](/source/Ferrovie_dello_Stato_Italiane) (FS; Italian State Railways) **Class 310** (Italian: *Gruppo 310*), formerly [Rete Mediterranea](/source/Rete_Mediterranea) **Class 380**, was a [0-6-0](/source/0-6-0) steam locomotive; they were the first Italian as-built [compound locomotives](/source/Compound_locomotive). ## Design and construction After modifying six of the pre-existing [Class 255](https://en.wikipedia.org/w/index.php?title=FS_Class_255&action=edit&redlink=1) to a compound arrangement as an experiment, with positive results, the *Ufficio d'Arte di Torino* of the [Rete Mediterranea](/source/Rete_Mediterranea) designed a two-cylinder compound locomotive meant for mixed service; this design also saw the beginning of the adoption of the [Walschaerts valve gear](/source/Walschaerts_valve_gear) on Italian locomotives. The round-topped boiler on the first 49 units had standard tubes; however, on the last 20 units it was replaced by one with Serve tubes, which brought the power of these locomotives from the original 430 CV (316 kW; 424 hp) to 500 CV (368 kW; 493 hp). These locomotives were built between 1894 and 1901 by [Ernesto Breda](/source/Ernesto_Breda) and [MÁVAG](/source/M%C3%81VAG).[1][2] ## Service The Class 310, while an important step in Italian locomotive design, was not a thoroughly successful design; the unique cut-off command for both cylinders made it difficult to equalize the work being done, the starting valve design did not prove entirely successful, and the proportions of the cylinders were also less than optimal. The need to obviate these inconvenients led to the development of the more successful [Class 320](https://en.wikipedia.org/w/index.php?title=FS_Class_320&action=edit&redlink=1). The Class 310 locomotives served on both passenger and freight trains on secondary lines for their whole career; the last units survived till the early 1930s around [Asti](/source/Asti), but were withdrawn soon after. No locomotive survived into preservation.[3][2] ## References 1. **[^](#cite_ref-FOOTNOTECornolò2014170–171_1-0)** [Cornolò 2014](#CITEREFCornolò2014), pp. 170–171. 1. ^ [***a***](#cite_ref-FOOTNOTEKalla-Bishop198626_2-0) [***b***](#cite_ref-FOOTNOTEKalla-Bishop198626_2-1) [Kalla-Bishop 1986](#CITEREFKalla-Bishop1986), p. 26. 1. **[^](#cite_ref-FOOTNOTECornolò2014171–172_3-0)** [Cornolò 2014](#CITEREFCornolò2014), pp. 171–172. - Cornolò, Giovanni (May 2014). "Locomotive a vapore". *TuttoTreno* (2). - Kalla-Bishop, P.M. (1986). *Italian state railways steam locomotives : together with low-voltage direct current and three-phase motive power*. Abingdon: Tourret. [ISBN](/source/ISBN_(identifier)) [0905878035](https://en.wikipedia.org/wiki/Special:BookSources/0905878035). v t e Classes of Ferrovie dello Stato Italiane locomotives Steam Tender locomotives 100 102 103 110I 110II 111 112 113 114 116 117 118 119I 119II 120 121 122 136 139 140 150 155 158 160 161 162 163 164 170 180 181I 181II 182I 182II 183 185 186 187 190 193 194 195 196 197 198 200 201 206 207 208 209 211 212 215 216 217 218 219 220 221 222 223 224 255 260 261 262 265 268 269 270 271 272 290 291 292 293 310 320 380 385 388 390 391 394 395 396 397 400 410 420 421 422 423 424 425 450 451 452 453 454 455 460 470 471 472 473 474 475 476 477 478 479 480 482 499I 499II 500 510 512 513 530 540I 540II 542 543 545 550 552 553 554 555 556 560 600 601 603 604 605 606 607 623 625 626 630 640I 640II 645 650 652 653 656 660 666 670 671 672 675 676 677 680 681 682 683I 683II 685 686 687 688 690I 690II 691 720 728 729 730 731 735 736 737 740 741I 741II 743I 743II 744 745 746 747I 747II 750 Tank locomotives 800I 800II 801 802I 802II 803I 803II 804 805 806 809 810I 810II 811 812 813 814 815I 815II 815III 816 817 818 819 820I 820II 821I 821II 822 823 824 825 826I 826II 827 828I 828II 828III 829 830I 830II 831 835 842 848 849 850I 850II 851 870 871 874I 874II 875 876 877 880I 880II 881 882 885 893 894 895 896I 896II 897 898 899I 899II 900 902 904 905 906 910 912 915 940 950 980 981 999 Narrow gauge locomotives R.201 R.202 R.300 R.301 R.302 R.305 R.306 R.310 R.370 R.401 R.402 R.410 R.440 R.441 R.442 R.443 R.600 P U Electric Rechargeable battery E.421 650 V DC Third rail E.220 E.320 E.321 E.420 E.620 3,6 kV AC Three-Phase E.330 E.331 E.332 E.333 E.360 E.380 E.390 E.430 E.431 E.432 E.550 E.551 E.552 E.554 10,6 kV AC Three-Phase E.470 E.471 E.472 E.570 3 kV DC E.321 E.322 E.323 E.324 E.326 E.400 E.402A E.402B E.403 E.404 E.405 E.412 E.414 E.424 E.428 E.434 E.444 E.444R E.447 E.453 E.454 E.464 E.621 E.625 E.626 E.632 E.633 E.636 E.640 E.645 E.646 E.652 E.655 E.656 25 kV AC E.491 E.492 Diesel Light shunters 206 207 208I 208II 209 210 211 R.212 213I 213II 214 215 216 218I Shunters 218II 225 234 235 236 245 250 255 Heavy shunters Ne 120 D.141 RD.142 D.143 D.145 D.146 D.147 356 372 Ne 700 Train locomotives D.341 D.342 D.343 D.345 D.442 D.443 D.445 D.449 D.461 see also Category:Rolling stock of Italy --- Adapted from the Wikipedia article [FS Class 310](https://en.wikipedia.org/wiki/FS_Class_310) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/FS_Class_310?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.