The Pennsylvania Railroad 's class E2, E3, E7 steam locomotives were of the 4-4-2 "Atlantic" passenger type, frequently called light Atlantics after the introduction of the heavier E6 Atlantics. All were similar in size and boiler capacity but differed in firebox type, valves and valve gear and cylinder diameter.

AC current fed via transformer tap changers to AC traction motors. Pennsylvania Railroad class E2b comprised six experimental B-B electric locomotives built for the railroad by General Electric. In 1952 the Pennsylvania Railroad took delivery of eight experimental locomotives: GE built two demonstrators to show the Great Northern Railway.

The Pennsylvania Railroad's class E2, E3, E7 steam locomotives were of the 4-4-2 "Atlantic" passenger type, frequently called light Atlantics after the introduction of the heavier E6 Atlantics. All were similar in size and boiler capacity but differed in firebox type, valves and valve gear and...

During four years of testing at the PRR Altoona Test Plant, the superheated E6 demonstrated a 30% increase in power, with a corresponding 23% to 46% drop in water and coal consumption, depending on train weight and track gradient."

2024年9月30日 · The Pennsylvania Railroad's class E2, E3, E7 steam locomotives were of the 4-4-2 "Atlantic" passenger type, frequently called “light Atlantics” after the introduction of the heavier E6 Atlantics. All were similar in size and boiler capacity but differed in firebox type, valves and valve gear, and cylinder diameter.

2019年9月28日 · Superheating and other improvements led to many E2 and E3 class Atlantics being reclassified as E7's before being retired between the 1930's and 1950's. The PRR Class A5s were the largest 0-4-0 switchers ever built and represented the PRR's propensity to beef up existing locomotive types as opposed to investing in unproven technology.

This engine was built in 1902 as a class E2 for the Pittsburgh, Fort Wayne and Chicago Railway as engine #2 (renumbered to 7002). On the first westward run of the Pennsylvania Special (renamed the Broadway Limited in 1912) in June 1905 the conductor clocked the train over three miles just west of Lima, Ohio in 85 seconds, at a record speed of ...

2019年7月7日 · It was rebuilt to class E7s in 1918. Reportedly, another PRR locomotive, PRR E2 7002 gained fame on June 12, 1905, when it reportedly set a ground speed record of 127.1 mph, making up time west of Crestline, Ohio.

2011年4月1日 · PRR #5901 is an EMD E7 with the classic rounded "bulldog" nose of the EMD E series. It is powered by two EMD 567A 12 cylinder prime movers powering two GM D4 generators to drive four GM D7 traction motors. It delivered starting tractive effort of 56,500 lbs at 25%, 31,000 lbs continuous at 11 mph with a top speed of 85 mph.

The Pennsylvania Railroad's class E2, E3, E7 steam locomotives were of the 4-4-2 "Atlantic" passenger type, frequently called light Atlantics after the introduction of the heavier E6 Atlantics. All were similar in size and boiler capacity but differed in firebox type, valves and valve gear and cylinder diameter.