Bavarian C I

Bavarian C Is were steam locomotives with the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn).

Bavarian C I
Model of the C I "BEHAIM" in the Verkehrszentrum München
Quantity	5
Manufacturer	Maffei
Year(s) of manufacture	1847–1849
Retired	1885–1895
Wheel arrangement	0-6-0
Axle arrangement	C n2
Track gauge	1,435 mm (4 ft 8 1⁄2 in)
Length over buffers	12,401 mm (40 ft 8 1⁄4 in)
Empty weight	22 t (22 long tons; 24 short tons)
Service weight	24.9 t (24.5 long tons; 27.4 short tons)
Adhesive weight	24.9 t (24.5 long tons; 27.4 short tons)
Axle load	10.5 t (10.3 long tons; 11.6 short tons)
Top speed	40 km/h (25 mph)
Driving wheel diameter	1,069 or 1,098 mm (3 ft 6 1⁄8 in or 3 ft 7 1⁄4 in)
No. of cylinders	2
Cylinder bore	406 mm (16 in)
Piston stroke	609 mm (24 in)
Boiler Overpressure	5.6 or 10 kgf/cm2 (550 or 980 kPa; 80 or 142 lbf/in2)
No. of heating tubes	160 or 119
Heating tube length	3,860 or 3,756 mm (12 ft 8 in or 12 ft 3 3⁄4 in)
Grate area	0.39 or 0.91 m2 (4.2 or 9.8 sq ft)
Evaporative heating area	72 or 56.7 m2 (775 or 610 sq ft)
Tender	2 T 4.2
Water capacity	4.22 m3 (930 imp gal; 1,110 US gal)
Fuel	3 m3 coal
Where 2 sets of figures are shown, the second applies to the engine with its replacement boiler

They were the first six-coupled engines in Bavaria and were developed specially for the route between Neuenmarkt, Wirsberg and Marktschorgast. This route had inclines up to 1:40. The loco had an inside frame, a boiler barrel without a steam dome, an inside Stephenson valve gear, single-sided, suspended Taschenkulissen and a rectangular ballast tank on the boiler barrel to increase the adhesion effect. A total of five were built by Maffei. They were named: SCHARRER, BEHAIM, LEIBNIZ, SAALE and SCHNEEBERG. There is a finely detailed 1:10 scale model of BEHAIM in the Nuremberg Transport Museum.

They were equipped with Bavarian tenders of the class 2 T 4.2 type.