FS Class E.428

FS class E.428

First-series E.428.058 hauling an historical train

Type and origin
Power type	Electric
Builder	Breda, Ansaldo, Officine Reggiane and Fiat-Marelli
Build date	1934-1943

Specifications
UIC class	2-Bo-Bo-2
Gauge	1,435 mm (4 ft 8 ¹⁄₂ in) standard gauge
Wheel diameter	1.880 m (74.02 in) (driving wheels)
Wheelbase	5.450 m (17 ft 10 ⁵⁄₈ in)
Length	19.000 m (62 ft 4 in)
Loco weight	130 t (130 long tons; 140 short tons)/135 t (133 long tons; 149 short tons)
Electric system(s)	3,000 V DC Catenary
Current collection	Pantograph
Traction motors	DC series
Transmission	29/103 and 31/101 gear ratios

Performance figures
Maximum speed	130 km/h (81 mph)
Power output	2,800 kW (3,800 hp)
Tractive effort	115 kN (26,000 lb_f) /137 kN (31,000 lb_f)

Career
Operators	FS Trenitalia
Number in class	242 in three series
First run	1934
Disposition	Decommissioned in 1988

The FS E.428 was a class of Italian railways electric locomotives. They were introduced in the course of the 1930s, for fast services on the Florence-Rome line, being decommissioned in the 1980s.^[1]

History

When in the 1930s, in the course of the Fascist government's program of railways development, a new locomotive was needed to provide a fast service on the newly electrified Milan-Rome mainline at 3,000 V DC. This was also permitted by the introduction of new metallic passenger cars, capable of relative higher speeds. The requirement was shipped to the FS design team of Ing. Giuseppe Bianchi at Florence.

The new locomotive was impressive for the times: huge, heavy, powerful and fast. They were 4 metres (13 ft 1 ¹⁄₂ in) longer than the E.626, the first Italian DC electric locomotives, and weighed 10–20 t (9.8–19.7 long tons; 11–22 short tons) more. The original requirement asked for the notable service speed of 150 km/h (93 mph), but this was later reduced to 130 km/h (81 mph).

The E.428 was to be built in conjunction with a lighter version, the E.326, but those proved unsuccessful and were limited to lower speeds.

The first wheel arrangement devised was a 2-Do-2, with four trailing axles at the fronts and a single motor driving four central axles. However, the experiences with the E.326 suggested to split the central bogie into two motorized ones. The first locomotive, E.428.001, was released in May 1934. A first series, for a total of 97 units, was produced until 1937. A second order in the same series requested a shorter gear ratio (29/103) and larger air intakes, which caused an increase in weight of four tons.

The "aerodynamic" profile of E.428.226, a third-series locomotive.

The second series (81 units) differed in the removal of the frontal bonnets, replaced by a more profiled driving cabin: this set a style which was adopted for all the following Italian locomotives. A third order was issued on April 5, 1939 for 80 locomotives, but the construction was halted by the outbreak of World War II after the completion of 39 units. Some of those locomotives, built by Ansaldo, were theoretically capable of speeds up to 150 km/h.

All the E.428s, aside from two, were repaired or rebuilt after World War II. Curiously, the bronze fascist lictorial crests on the front were removed only in 1946. In the 1960s the "Fast sub-class", with the 34/98 gear ratio, was built back to the shorter 29/103.

References

Pocaterra, Renzo (2003). Treni. Novara: Istituto Geografico De Agostini.

Footnotes

↑ Poccaterro, Renzo (2003). Treni. Instituto Geographico de Astoni.

Wikimedia Commons has media related to FS E.428.

Classes of Ferrovie dello Stato locomotives

Steam

Tender locomotives	100 102 103 110^I 110^II 111 112 113 114 116 117 118 119^I 119^II 120 121 122 136 139 140 150 155 158 160 161 162 163 164 170 180 181^I 181^II 182^I 182^II 183 185 186 187 190 193 194 195 196 197 198 200 201 206 207 208 209 211 212 215 216 217 218 219 220 221 222 223 224 255 260 261 262 265 268 269 270 271 272 290 291 292 293 310 320 380 385 388 390 391 394 395 396 397 400 410 420 421 422 423 424 425 450 451 452 453 454 455 460 470 471 472 473 474 475 476 477 478 479 480 482 499^I 499^II 500 510 512 513 530 540^I 540^II 542 543 545 550 552 553 554 555 556 560 600 601 603 604 605 606 607 623 625 626 630 640^I 640^II 645 650 652 653 656 660 666 670 671 672 675 676 677 680 681 682 683^I 683^II 685 686 687 688 690^I 690^II 691 720 728 729 730 731 735 736 737 740 741^I 741^II 743^I 743^II 744 745 746 747^I 747^II 750

Tank locomotives	800^I 800^II 801 802^I 802^II 803^I 803^II 804 805 806 809 810^I 810^II 811 812 813 814 815^I 815^II 815^III 816 817 818 819 820^I 820^II 821^I 821^II 822 823 824 825 826^I 826^II 827 828^I 828^II 828^III 829 830^I 830^II 831 835 842 848 849 850^I 850^II 851 870 871 874^I 874^II 875 876 877 880^I 880^II 881 882 885 893 894 895 896^I 896^II 897 898 899^I 899^II 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.645 E.646 E.652 E.655 E.656

25 kV AC	E.491 E.492

Diesel

Light shunters	206 207 208^I 208^II 209 210 211 R.212 213^I 213^II 214 215 216 218^I

Shunters	218^II 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

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