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The Q2 locomotive was 78% more powerful than the locomotives that PRR had in service at the time, and the company claimed the Q2 could pull 125 freight cars at a speed of 50 mph (80 km/h). [5] These were an improved version of the previous Q1 class , which was a 4-6-4-4 dual-purpose engine instead of a 4-4-6-4 freight engine.
A 4-4-6-4, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is one that has four leading wheels followed by four coupled driving wheels, a second set of six coupled driving wheels and four trailing wheels. The Pennsylvania Railroad's Q2 class were the
The other was the "Blue Ridge" class for the Virginian Railway. These were some of the most powerful reciprocating steam locomotives ever built, at 7,500 hp (which was exceeded by only the Pennsylvania Railroad class Q2 in indicated horsepower), and one of the heaviest at 386 tons for the locomotive itself plus 215 tons for the loaded tender.
Pennsylvania Railroad class E2; Pennsylvania Railroad class E2b; Pennsylvania Railroad class E2c; Pennsylvania Railroad class E3b; Pennsylvania Railroad E6 class; Pennsylvania Railroad class E1; Pennsylvania Railroad class E44
Q1 was the last dual service locomotive designed by the Pennsylvania Railroad, but there is no substantial evidence showing that it was assigned to passenger service. Q1's design was able to reduce dynamic argument by 60% compared to the J1 class above 70 mph (110 km/h), but it exceeded the railroad's 50 mph (80 km/h) speed limit for the ...
A PRR wooden freight car with steel underframe PRR boxcar No. 19103 of PRR class X54. The Pennsylvania Railroad bought its first 75 freight cars in 1849. [3]: 20 Two years later, the Pennsy owned 439 freight cars. By 1857, it had 1,861 cars, and in 1866, 9,379 cars.
The Pennsylvania Railroad (PRR) class T1 duplex-drive 4-4-4-4 steam locomotives, introduced in 1942 with two prototypes and later in 1945-1946 with 50 production examples, were the last steam locomotives built for the PRR and arguably its most controversial.
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