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The S1 did not represent Baldwin's true desires for the type, but in the design of the T1, of which two prototypes were ordered in July 1940, Baldwin was given much more freedom. The PRR's requirements were the use of the Belpaire firebox and the Franklin oscillating-cam poppet valve gear. The two, #6110 and #6111, were delivered in April and ...
The S2 used a direct-drive steam turbine provided by the Westinghouse Electric & Manufacturing Company, geared to the center pair of axles with the outer two axles connected by side rods; the fixed gear ratio was 18.5:1. Such design was to prevent energy loss and S2 achieved a mechanical efficiency of 97% which means only 3% of steam energy was ...
The S1 class was the largest rigid frame passenger steam locomotive ever built. [1] The streamlined Art Deco styled shell of the locomotive was designed by Raymond Loewy. [1] [2] [3] The S1 had a unique 6-4-4-6 wheel arrangement, meaning that it had two pairs of cylinders, each driving two pairs of driving wheels. To achieve stability at fast ...
The NFL playoffs are finally here. Which games are must-watch in this weekend's wild-card round?
Feeling overwhelmed by the sheer number of interview requests NFL teams made Monday? Let Yahoo Sports help.
The 2025 NFL playoffs are marching onto the divisional round as the league's battle for Super Bowl 59 continues.. Wild card weekend treated fans to one close contest and a series of blowouts. The ...
The ALCO S-1 and S-3 were 660 horsepower (490 kW) diesel-electric switcher locomotives produced by ALCO and their Canadian subsidiary Montreal Locomotive Works (MLW). The two locomotives differed only in trucks, with the S-1 using ALCO's own Blunt trucks, and the S-3 using AAR type A switcher trucks.
The arrangement was essentially a miniaturized version of conventional valve gear, with each cylinder's motion actuated by the opposite crosshead, similar to Young valve gear. Also placed under the hood was an air horn, positioned similarly to that of the S1, for added auditory warning at high speeds. The Pennsylvania passenger-standard 3-chime ...