Post3 Bay 03

Post3 Bay 03
Number:	12
Year of construction (s):	1903-1904
Genre :	post Office
Gauge :	1435 mm ( standard gauge )
Length over buffers:	11,524 mm
Length:	10,000 mm
Height:	4,025 mm
Width:	2,700 mm
Trunnion Distance:	7,700 mm
Fixed wheelbase:	3,850 mm
Payload:	5,000 kg
Service mass:	16,450 kg
Wheel diameter:	1,014 mm
Brake:	Handbrake
Train heating:	Furnace heating
Coupling type:	Screw coupling
Floor height:	1,272 mm

The Bavarian Post3 Bay 03 (according to DR category conventions ) were three-axle mail wagons, which according to sheet no. 194 of the wagon directory from 1913 were built as the third type of the second generation of mail wagons.

development

From 1883, various railway companies - including K.Bay.Sts.B - procured the first three-axle wagons for express trains. This also resulted in the need for corresponding types of wagons for the transport of mail.

procurement

Between 1883 and 1904, a total of 61 cars were procured for the second generation of mail cars. 12 of them belonged to the type obtained in 1903/1904 according to sheet no. 194.

Whereabouts

All cars were taken over by the Reichsbahn. This type of wagon was retired from the DB by around 1966.

Constructive features

Underframe

The chassis of the car was completely riveted together from iron profiles. The outer side rails had a double U shape with outward flanges. As a towing device, the wagons had screw couplings with safety hooks according to VDEV, the drawbar was spring-loaded throughout. The wagons had rod buffers with an installation length of 612 mm, the buffer plates had a diameter of 370 mm. The buffers were exchanged for sleeve buffers in the 1930s, which also changed the length over buffers.

drive

The wagons had riveted half-timbered axle brackets made of flat iron of the short, straight design. The axles were stored in split sliding axle bearings. The wheels had spoked wheel bodies of Bavarian shape 39 with a wheel diameter of 1,014 mm. The suspension springs had a length of 1,750 mm with a cross section of 96 mm × 13 mm. They were nine layers thick on the end axes and seven layers on the transversely movable central axis. They were fastened to the spring brackets with spring straps. The end axles were designed as club steering axles.

The spindle handbrake in the raised brakeman's cab acted on all wheels on both sides. In contrast to the two previous types, the central axes were also braked here. The cars were all fitted with Westinghouse brakes.

Car body

The car body framework consisted of a wooden frame work. It was clad with sheet metal on the outside and wood on the inside. The side walls were slightly indented on the underside, the end walls straight. The wagons had a flat arched roof that protruded over the side walls. A skylight structure was placed on the roof, which went directly into the raised brakeman's cab. This was only accessible from the outside on both sides. The wagons all had continuous side walkways and stop bars. The interior was accessed on both sides through a two-part, outward-opening wing door with a clear width of 1,330 mm.

The interior was continuous and without a partition. The packing room was on the side of the brakeman's cab, and the letter sorting room on the opposite side. In the middle of the car there was also the stove that worked on both halves of the car and the toilet.

Furnishing

The wagons had a stove for heating. The cars were all equipped with a pipe for steam heating .

The lighting was done by gas lamps. The storage container for the illuminating gas hung on the frame in the longitudinal direction of the car.

The wagons were given the green paint scheme required for the outside and the inscription Königliche Bahn-Post as property identification .

comment

In the years 1924 to 1929, most of the cars taken over by the DRG were converted. The central axes, which were replaced by a truss mechanism lying in the plane of the outer longitudinal girders, were omitted. In addition, the rod buffers were replaced by sleeve buffers and the gas lighting by an electric one. The handrails have also been removed and the continuous walking boards have been modified.

Sketches, sample sheets, photos

• 

  Drawing for Post3 Bay 03

Wagon numbers

The data are essentially based on the rolling stock registers of the Royal Bavarian State Railways and taken from March 31, 1913, as well as data from the article by A. Mühl in Lok-Magazin 102.

Manufacturing data		Car numbers for each era, generic symbols						landing gear						Furnishing								Additional information
construction year	manufacturers manufacturers	from 1876	from 1909	Rep. (1919)	DR (from 1923)	DRG (from 1930)	excluded screened	Number Ax.	Bicycle stand (mm)	LüP (mm)	Brem- sen	Under- Gest.	Steering axle.	Bl.	Hz.	Type u. Number of compartments ( see legend )						comment
Sheet number. 194		BP	Post3		Post3 Bay 03	Post3 / 10					( see respective legend )					A.	B.	D.	G	P	Z
1903/04			15 379					3	7,000 3,350	11,524	BrH Wbr	E.	V	G	O, L	1	1			1
			15 380-15 390

Individual evidence

1. ↑ Deppmeyer / Kirsch / Wagner; Small type customer of German rail mail cars
2. ↑ Reiss, Gustav; For the 75th anniversary of the railway station in Bavaria; Archive for Postal History in Bavaria
3. ↑ because of the calculation according to axle kilometers!
4. ↑ Deppmeyer / Kirsch / Wagner, Brief Typenkunde deutscher Postwagen, page 34

literature

• Albert Mühl: The Bavarian and Württemberg rail mail cars . In: Lok Magazin . No. 102 , 1980, pp. 222 u. following .
• Emil Konrad: The passenger coaches of the German national railways . 1st edition. Franckh'sche Verlagshandlung W. Keller & Co., Stuttgart 1984, ISBN 3-440-05327-X .
• Vehicle fleet directory of the Royal Bavarian State Railways . (Compiled according to the status of March 31, 1897).
• Vehicle fleet directory of the Royal Bavarian State Railways . (Compiled according to the status of March 31, 1913).