Cateva date legate de aceasta locomotiva deosebita pentru epoca ei, le-am gasit pe net:
Bayerisches S2/6 No. 3201
Bayerisches Compound 4-4-4 S2/6 Number 3201
Built Maffei 1906 Total weight EXCL tender 84 tons
Number Built 1 loco No 3201 Fuel Coal
Withdrawn Around 1925, now preserved Fire grate area 50.6 sq feet
Cylinders 4, (HP) 16.2"x25.2", (LP) 24"x25.2" Max i.hp To follow
Driving Wheels 86.6" diameter Boiler Pressure 200 psi
Bayerisches S2/6 No. 3201 4-4-4 was a "once off" type of team locomotive designed to haul relatively light passenger trains on schedules that were, for the early 20th Century very fast. It is a four cylinder compound steam locomotive, the first of such a design to feature on this particular web page. By using the exhaust steam from the high pressure cylinders to operate two further low pressure cylinders this type of loco had a significant power advantage over similar sized "simple" designs.
What are the facts concerning this high speed journey?
The most important fact is that on 2nd July 1907 No. 3201 did not reach 100 mph! But in the progression from the early unsupported claims shown above for the first steam locomotive to have reached 100 mph, No. 3201 set a new highest authenticated speed for steam traction. That is why, with a speed of between 96 mph and 97.6 mph this locomotive earns it's place here.
The circumstances were a test run on 2nd July 1907 between München and Augsburg which in part was to test the builders claim that the loco was capable of 150 km/h, (93 mph). The exact recording method has not been identified yet, but for the present it is assumed that as this was a special test run proper arrangements were in place: if not there was little purpose in undertaking the test! It is said the maximum speed was reached on level track, but having timed steam over that route in 2002, (at up to 91 mph), I know the route to be quite undulating in places so the level track maximum may well have had the prior assistance of a downhill grade. There is a little doubt as to the exact maximum speed as German sources normally quote 96 mph, (154.5 km/h), whereas Baron Gerard Vuillet mentions it as 97.6 mph, (157 km/h). Whichever of those is correct does not detract from the fact that on July 2nd 1907 No. 3201 is likely to have set the fastest authentic speed by a steam loco up to that time.