Bavarian R 3/3

The Bavarian Class R 3/3 of the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn) was an 0-6-0 tank locomotive intended for goods trains. Of the engines delivered before World War I, one went to the Polish PKP, the other 17 were included by the Deutsche Reichsbahn as Class 89.7 in their numbering plan. The 90 units of the second series that were supplied from 1921 onwards all went into the Reichsbahn, and were designated as Class 89.8. 86 examples went into the Deutsche Bundesbahn after the Second World War and the last one was not taken out of service until 1960.

Bavarian R 3/3 DRG Class 89.7–8 ÖBB 789
Bavarian Class R 3/3, number 4701, later 89 801, in Bochum-Dahlhausen (1985)
Number(s)	K.Bay.Sts.E.: 2473–2487, 2488–2490, 4701–4790 DRG: 89 701 – 89 714, 89 715 – 89 717, 89 801 – 89 890
Quantity	1906–07 locos: 15 1913 locos: 3 1921–23 locos: 90 Total: 108
Manufacturer	Krauss
Year(s) of manufacture	1906–1907, 1913, 1921–1923
Retired	by 1964
Wheel arrangement	0-6-0T
Axle arrangement	C n2t
Type	1906–1913 locos: Gt 33.15 1921–1923 locos: Gt 33.16
Track gauge	1,435 mm (4 ft 8 ^1⁄2 in)
Length over buffers	1906–07 locos: 9,410 mm (30 ft 10 ^1⁄2 in) 1913 locos: 9,450 mm (31 ft 0 in) 1921–23 locos: 9,974 mm (32 ft 8 ^3⁄4 in)
Service weight	1906–07 locos: 44.8 t (44.1 long tons; 49.4 short tons) 1913 locos: 45.3 t (44.6 long tons; 49.9 short tons) 1921–23 locos: 47.6 t (46.8 long tons; 52.5 short tons)
Adhesive weight	1906–07 locos: 44.8 t (44.1 long tons; 49.4 short tons) 1913 locos: 45.3 t (44.6 long tons; 49.9 short tons) 1921–23 locos: 47.6 t (46.8 long tons; 52.5 short tons)
Axle load	1906–07 locos: 14.9 t (14.7 long tons; 16.4 short tons) 1913 locos: 15.1 t (14.9 long tons; 16.6 short tons) 1921–23 locos: 15.9 t (15.6 long tons; 17.5 short tons)
Top speed	45 km/h (28 mph)
Indicated Power	430 PS (316 kW; 424 hp)
Coupled wheel diameter	1,216 mm (3 ft 11 ^7⁄8 in)
No. of cylinders	Two, outside
Cylinder bore	420 mm (16 ^9⁄16 in)
Piston stroke	610 mm (24 in)
Boiler Overpressure	12 kgf/cm^2 (1,180 kPa; 171 lbf/in^2)
Grate area	1.61 m^2 (17.3 sq ft)
Evaporative heating area	89.60 m^2 (964.4 sq ft)
Locomotive brakes	Hand brake as Exter counterweight brake, on all wheels from rear

Numbers 89 835, 837 and 851 remained in Austria after the Second World War. The Austrian Federal Railway (Österreichische Bundesbahn or ÖBB) took them over as ÖBB Class 789 and designated them using their previous serial numbers. Numbers 789.835 and 837 were sold in 1956 as industrial locos, number 789.851 was retired in 1957. Finally number 789.837 returned to Bavaria and may be found today in the collection of the Bavarian Railway Museum (Bayerisches Eisenbahnmuseum) in Nördlingen.

No. 89 801 (ex K.Bay.Sts.B. 4701) belongs to the DB Museum fleet. It was damaged during the great fire on 17 October 2005 at Nuremberg and is being restored in Koblenz. (See photograph left).

Bayer. R 3/3 4701
"150 Years of German Railways"
Bochum-Dahlhausen

See also

• Royal Bavarian State Railways
• List of Bavarian locomotives and railbuses