GBS maximum 27

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GBS maximum 27
Maximum railcar 2214 around 1902
Maximum railcar 2214 around 1902
Numbering: GBS 2080, 2181-2230, 2700-2849;
WBV 42, 64-88; BSt 4731-4957
Number: 227 railcars
Manufacturer: Böker, Falkenried
Year of construction (s): 1901-1904
Retirement: until 1929
Axis formula : (A1) '(1A)'
Gauge : 1435 mm ( standard gauge )
Length over buffers: 11,000 mm
Length: 7,500 mm (car body
without platforms)
Width: 2,100 mm
Bogie axle base: 1,300 mm
Empty mass: 13.5 t
Power system : 600 V DC
Power transmission: Overhead line
Number of traction motors: 2
Seats: 27

The nine-window motor coaches of the type Maximum 27 were a series of 227 coaches that were in service with the Great Berlin Tramway (GBS) and the Western Berlin Suburb Railway from 1901 . After the Brandenburg wagons procured from 1897 to 1901 , these were the first four-axle railcars on the Berlin tram . Similar to the successor Maximum 30 , which was procured from 1906 , the vehicles had Maximum bogies .

development

operator Construction year before 1920 after 1920 number
GBS 1901 2080 4731 1
GBS 1901 2181
-2230 		4732
-4781 		50
WBV 1901 42 4932 1
GBS 1903 2432 M 1 1
GBS 1904 2700
-2849 		4782
-4 931 		150
WBV 1905 64
- 0088 		4933
-4 957 		25th

For the electrification of its route network, the Große Berliner Straßenbahn purchased two extensive series of multiple units, the two-axle Berolina and the four-axle Brandenburg wagons, in addition to smaller vehicle types . The latter were designed both for overhead line operation and for the use of batteries and had to be made larger to accommodate the batteries. Both types of vehicle, however, had corresponding shortcomings, on the one hand because of their small size and on the other hand because of the vulnerable accumulators. GBS therefore switched to ordering four-axle railcars.

For better weight distribution, the new wagons were given maximum bogies, each with a larger drive axle and a smaller running axle, with around two thirds of the weight resting on the drive axles, which therefore had a higher adhesive weight.

The cars each had nine side windows and offered 27 seats, three seats per row of windows. The first and last row of seats, which were installed in a 2 + 1 arrangement, faced in the direction of travel. The side windows could be lowered in the upper third.

Maximum railcar 2746 in Königstrasse in 1909

Of the total of 227 cars, 201 cars went to GBS, which included a test vehicle and two series of 50 and 150 cars respectively. The WBV first ordered a test car and then 25 series vehicles. The cars were all transferred to the Berlin tram in 1920 and were taken out of service there until 1929.

Another wagon was given the GBS wagon number 2432 and was used exclusively for measurement runs. The dimensions, however, corresponded to the other nine-window maximum railcars. After 1920 it received the car number M 1. In 1938 the measuring car was converted into a passenger railcar and externally received the Berlin standard platforms . With the new car number 5438, this was the last nine-window maximum railcar still in use. After 1949 it remained with BVG -West, where it was retired and scrapped in 1955.

literature

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