notation for the classification of steam locomotives by wheel arrangement, 4-4-2 represents a configuration of a four-wheeled leading bogie, four powered...

In Whyte notation, 2-4-4-2 refers to a railroad steam locomotive that has two leading wheels followed by two sets of four coupled driving wheels and two...

Under the Whyte notation for the classification of steam locomotives, 4-2-2 represents the wheel arrangement of four leading wheels on two axles, two...

Under the Whyte notation for the classification of steam locomotives, 2-4-2 represents the wheel arrangement of two leading wheels on one axle, four powered...

2 + 2 = 2 × 2 = 2 2 = 2 ↑↑ 2 = 2 ↑↑↑ 2 = . . . = 4 {\displaystyle 2+2=2\times 2=2^{2}=2\uparrow \uparrow 2=2\uparrow \uparrow \uparrow 2=\;...\;=4} ...

Under the Whyte notation for the classification of steam locomotives, 4-6-2 represents the wheel arrangement of four leading wheels on two axles, six...

rebuilt to 4-4-2 "Atlantic" locomotives, classified as P7sa, and renumbered 350 to 353. B&O created a single 4-4-4 in 1934, rebuilding a 4-4-2 "Atlantic"...

operated locomotives of this type, and many rebuilt their 4-2-0 and 2-4-0 locomotives as 4-4-0s. In April 1872, Railroad Gazette used "American" as the...

dictionary. 2×4 or two by four may refer to: 2 4, a time signature in music 2×4 (Guadalcanal Diary album), 1987 2×4 (Einstürzende Neubauten album), 1984 2×4 (Malachi...

differed little from that of the 4-6-2, but the steam-raising ability was increased, giving more power at speed. The 4-6-4 was best suited to high-speed...

locomotives by wheel arrangement, a 4-8-2+2-8-4 is a Garratt articulated locomotive consisting of a pair of 4-8-2 engine units back to back, with the...

A 4-4-4-4 steam locomotive, in the Whyte notation for describing locomotive wheel arrangements, has a four-wheel leading truck, two sets of four driving...

Under the Whyte notation for the classification of steam locomotives, 2-4-0 represents the wheel arrangement of two leading wheels on one axle, four powered...

This locomotive design was a further development of the highly successful 2-10-4. The divided drive, or duplex arrangement, allowed for higher speeds with...

as a Northern. The 4-8-4 wheel arrangement was a progression from the 4-8-2 Mountain type and, like the 2-8-4 Berkshire and 4-6-4 Hudson types, an example...

Under the Whyte notation, a 2-8-4 is a steam locomotive that has two unpowered leading wheels, followed by eight coupled and powered driving wheels, and...

Under the Whyte notation for the classification of steam locomotives, 4-2-4 represents the wheel arrangement of four leading wheels on two axles, two...

numbers 1 + 2 + 3 + 4 + ⋯ is a divergent series. The nth partial sum of the series is the triangular number ∑ k = 1 n k = n ( n + 1 ) 2 , {\displaystyle...

2/4 may refer to February 4 (month-day date notation) 2 April (day-month date notation) 2 4 time, a duple time signature used, for example, for polkas...

Under the Whyte notation for the classification of steam locomotives, a 2-6-4 locomotive has two leading wheels, six coupled driving wheels and four trailing...

classification: '46+46' Swiss classification: '4/6+4/6' The equivalent UIC classification is refined to (2′D)D2′ for simple articulated locomotives. A similar...

Under the Whyte notation for the classification of steam locomotives, 4-8-2 represents the wheel arrangement of four leading wheels, eight powered and...

classification: 2322 Turkish classification: 3524 Swiss classification: 3/5+2/4 up to the early 1920s, later 5/9 The sole example of this arrangement was...

Under the Whyte notation for the classification of steam locomotives, 0-4-2 represents the wheel arrangement with no leading wheels, four powered and...

Under the Whyte notation for the classification of steam locomotives, a 2-10-4 locomotive has two leading wheels on one axle, usually in a Bissel truck...

Left 4 Dead 2 is a 2009 first-person shooter video game developed and published by Valve. The sequel to Left 4 Dead (2008) and the second game in the...

IS-4, also known as the Object 701, was a Soviet heavy tank that started development in 1943 and began production in 1946. Derived from the IS-2 and...

notation for the classification of steam locomotive wheel arrangement, a 2-4-4-0 is a locomotive with two leading wheels, two sets of four driving wheels...

locomotives by wheel arrangement, a 4-4-2+2-4-4 is a Garratt articulated locomotive. The wheel arrangement is effectively two 4-4-2 locomotives operating back...

Under the Whyte notation for the classification of steam locomotives, 4-2-0 represents the wheel arrangement of four leading wheels on two axles, two...