CL Bay 06b
Lightweight open coach (Sheet 570)
Type and origin
BuilderRathgeber
Build date1906–1909
Total produced74
Specifications
Configuration:
​
 • UICOpen coach with open end-platforms
 • GermanCL
Gauge1,435 mm
Wheelbase:​
 • Overall5,000 mm
Length:
​
 • Over beams8,834 mm
Width3,100 mm
Height3,557 mm
Empty weight8.1 – 8.4 t
Loco brakeScrew brake / Westinghouse
CouplersVDEV screw couplings
Career
Numbers20 048 to 20 071
Retiredto 1961

The Bavarian CL Bay 06b was a short open coach for branch line services with the Royal Bavarian State Railways (k.Bay.Sts.B.). It was listed in their 1913 fleet register under Design Sheet No. 570.

Development

With the growth of the branch line network in the Kingdom of Bavaria, there was a need for suitable coaches on the so-called Lokalbahnen or local railway lines. Since the only available locomotives were tank engines with low tractive power, such as the Class PtL 2/2, passenger coaches of a particularly light design were required. These coaches were not suitable for military transport.

Procurement

Between 1905 and 1911 a total of 281[1][2] wagons of classes BL, BCL, CL and PPostL were procured, all of which - except for the wagons of Class PPostL - had a uniform floor plan, open platforms at each end with Dixi gates on the steps and gangways only protected by a single iron railing. Large window panes were fitted instead of the composite windows that had been usual up to that point. They are sometimes referred to as 'the shorts' or 'the short ones' (Die Kurze).

Between 1906 and 1909, 74 of these wagons, built to the specifications of Design Sheet 570, were procured in a total of five batches from the company of Waggonfabrik Josef Rathgeber in Munich. In contrast to the CL based on Sheet 569, these had a service compartment for the guard.

Career

Four coaches were retired by 1939. After the end of the Second World War in 1945, the location of other new coaches could no longer be ascertained. Of the vehicles delivered, 51 entered DB service, where they were decommissioned by 1960.

Design features

Underframe

The underframe of the coach was made entirely of rivetted structural steel. The outer longitudinal beams were U-shaped with outward facing flanges. The crossbeams were also made of U-profiles and not cranked. The wagons had screw couplings of VDEV design. The drawbar ran the length of the vehicle and was spring-loaded in the middle. As buffing equipment, the wagons had slotted cylindrical buffers with an installation length of 612 millimetres, the buffer plates had a diameter of 370 millimetres.

Running gear

The coaches had riveted half-timbered axle boxes of the short type, made of sheet steel. The axles were housed in sliding axle bearings. The wheels were spoked. Due to the long wheelbase of 5,000 millimetres, standard VDEV radial axles were used. In addition to a screw brake, which was located on one of the platforms at the end of the coach, the coaches also had air brakes of the Westinghouse system.

Body

The frame of the coach body consisted of wooden posts. This was covered with sheet metal on the outside and wood on the inside. The joints of the sheets were covered by cover strips. The roof was gently rounded and extended beyond the open end-platforms. The coaches had folding branch line steps, which were later replaced by normal ones.

Facilities

The coach was 3rd class only and had a total of 31 seats and a toilet. A total of 20 standing places were designated for the two end-platforms. The coaches were lit by paraffin lamps and had steam heating. They were ventilated by static ceiling ventilators.

Coach numbering

Manufacturing data Coach numbers[3] by epoch;
coach class		 Running gear Facilities Additional information
Year
built		 Manu-
facturer		 Qty. from 1875 from 1909
(1907)		 Rep.
(1919)		 DR
(from 1923)		 DRG
(from 1930)		 DRG
post-rebuild		 Retired Brakes No. of
axles		 Radial
axle		 Ltg. Htg. No. of
toilets		 No. of seats by class Sign
holders		 Remarks
Design Sheet No. 570 CL CL Bay 06b CL Bay 06b (see
legend)		 (see
legend)		 1st 2nd 3rd 4th (see
legend)
1906 Rathg. 8 20 655 9 301 Reg 9 573 Reg 03/1954 Pl, Wsbr 2 V P D 1 31
20 656 9 302 Reg 9 574 Reg 07/1957
20 657 9 303 Reg 9 575 Reg 06/1950 Unserviceable (Altschadwagen)
20 658 9 304 Reg 9 576 Reg 10/1954
20 659 9 305 Reg 9 577 Reg 08/1951 Unserviceable (Altschadwagen)
20 660 9 306 Reg 9 578 Reg 10/1958
20 661 9 307 Reg 9 579 Reg xx/193x
20 662 9 308 Reg 9 580 Reg 09/1954
1907 Rathg. 18 20 663 9 327 Nür 9 653 Nür 03/1947 Pl, Wsbr 2 V P D 1 31 Unserviceable (Altschadwagen)
20 664 9 328 Nür 9 654 Nür 02/1957
20 665 9 329 Nür 9 655 Nür 12/1957
20 666 9 330 Nür 9 656 Nür 10/1951 Unserviceable (Altschadwagen)
20 667 9 331 Nür 9 657 Nür 10/1954
20 668 9 332 Nür 9 658 Nür 09/1958
20 669 9 248 Mü 9 631 Mü 01/1960
20 670 9 249 Mü 9 632 Mü 03/1960
20 671 9 327 Nür 9 653 Nür 09/1951 Unserviceable (Altschadwagen)
20 672 9 251 Mü 9 634 Mü 05/1959
20 673 9 252 Mü 9 635 Mü 03/1956
20 674 9 234 Au 9 629 Au 07/1955
20 675 9 235 Au 9 630 Au 02/1959
20 676 9 333 Nür 9 659 Nür 07/1960
20 677 9 334 Nür 9 660 Nür  ? 1945
20 678 9 335 Nür 9 661 Nür 06/1950 Unserviceable (Altschadwagen)
20 679 9 336 Nür 9 662 Nür 07/1950 Unserviceable (Altschadwagen)
20 680 9 337 Nür 9 663 Nür 11/1957
1909 Rathg. 12 20 739 9 352 Nür 9 800 Nür 09/1962 Pl, Wsbr 2 V P D 1 31
20 740 9 353 Nür 9 812 Reg 03/1954
20 741 9 354 Nür 9 813 Reg 11/1950
20 742 9 236 Wür 9 801 Nür 10/1955
20 743 9 237 Wür 9 802 Nür 05/1942
20 744 9 277 Mü 9 789 Mü 06/1951 Unserviceable (Altschadwagen)
20 745 9 278 Mü 9 790 Mü 02/1953
20 746 9 238 Au 9 699 Au 04/1956
20 747 9 239 Au 9 700 Au 08/1962
20 748 9 279 Mü 9 727 Mü 03/1959
20 749 9 280 Mü 9 728 Mü  ? 1945
20 750 9 281 Mü 9 729 Mü  ? 1945
1909 Rathg. 3 20 780 9 366 Nür 9 809 Nür  ? 1945 Pl, Wsbr 2 V P D 1 31
20 781 9 367 Nür 9 810 Nür 12/1956
20 782 9 368 Nür 9 811 Nür 01/1957
Legend: brakes (Br.) Manual brake types BrH = brakeman's cabin , Pl = manual brake on the platform, Fsbr = Freisitzbremse
Air brakes Hnbr = Henri brake, Hsbr = Henri rapid-acting brake, Kp. = Knorr brake, Sbr. = Schleifer brake, Ssbr = Schleifer rapid-acting brake, Wbr = Westinghouse brake, Wsbr = Westinghouse rapid-acting brake
Vacuum brakes Hbr = Hardy brake, Ahbr = Automatic Hardy vacuum brake
Legend: lighting (Ltg.) Types of lighting P = paraffin lamps, G = gas lamps, Gg = gas mantle lamps, El = electric lights
Legend: heating Types of heating O = stove heating, D = steam heating, Pr. = briquette heating, L = only steam heating
Legend: sign holders for crossing into AT = Austria, IT = Italy, CH = Switzerland, FR = France, BE = Belgium

See also

The following coaches were also built for the Lokalbahn branch line network:

References

  1. ↑ Konrad, Reisezugwagen der deutschen Länderbahnen, page 23.
  2. ↑ See also Sheet no. 499, 523, 568, 569, 570, 605 and 606 of the 1913 Bavarian railway fleet register
  3. ↑ The data is taken from the coach fleet registers of the Royal Bavarian State Railways as at the 31 March 1897 and 1913 respectively

Literature

  • Wagner, Alto (2015), Bayerische Reisezugwagen (in German) (1 ed.), KIRUBA Verlag, ISBN 978-3-945631-00-3
  • Konrad, Emil (1984), Die Reisezugwagen der deutschen Länderbahnen. Band 2 (in German) (1 ed.), Stuttgart: Franckh, ISBN 3-440-05327-X
  • Wagenpark-Verzeichnis der Kgl. Bayer. Staatseisenbahnen. Pfälzisches Netz. Based on the fleet as at 31 March 1913 (in German), 1913
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