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  2. Jet engine performance - Wikipedia

    en.wikipedia.org/wiki/Jet_engine_performance

    The meaning of jet engine performance has been phrased as 'the end product that a jet engine company sells' [1] and, as such, criteria include thrust and fuel consumption, life, weight, emissions, diameter and cost. Performance criteria reflect the level of technology used in the design of an engine and the technology has been advancing ...

  3. Union Pacific Big Boy - Wikipedia

    en.wikipedia.org/wiki/Union_Pacific_Big_Boy

    The team found that the railroad's goals could be achieved by enlarging the Challenger firebox to about 235 by 96 inches (5.97 m × 2.44 m) (about 150 sq ft or 14 m 2), increasing boiler pressure to 300 psi (2.1 MPa), adding four driving wheels, and reducing the size of the driving wheels from 69 to 68 in (1,753 to 1,727 mm). [6]

  4. ZF S6-650 transmission - Wikipedia

    en.wikipedia.org/wiki/ZF_S6-650_transmission

    ZF S6-650 transmission. The ZF S6-650 is a 6-speed manual transmission manufactured by ZF Friedrichshafen AG. It is designed for longitudinal engine applications, and is rated to handle up to 705 newton-metres (520 lbf⋅ft) of torque. General Motors used the S6 as RPO ML6. Gear ratios:

  5. List of Chrysler transmissions - Wikipedia

    en.wikipedia.org/wiki/List_of_Chrysler_transmissions

    1960–1972 Chrysler A903 — 3-speed manual for 6-cyl and low power V8s. 1st gear, no synchromesh [1] 1961–1971 Chrysler A745 — 3-speed manual for V8s; 1964–1974 Chrysler A833 — 4-speed manual manufactured by New Process Gear [2] 1970–1981 Chrysler A230 — 3-speed manual, all-synchromesh

  6. 4-6-2 - Wikipedia

    en.wikipedia.org/wiki/4-6-2

    The introduction of the 4-6-2 design in 1901 has been described as "a veritable milestone in locomotive progress". [3] On many railways worldwide, Pacific steam locomotives provided the motive power for express passenger trains throughout much of the early to mid-20th century, before either being superseded by larger types in the late 1940s and 1950s, or replaced by electric or diesel-electric ...

  7. Orthogonal frequency-division multiplexing - Wikipedia

    en.wikipedia.org/wiki/Orthogonal_frequency...

    IEEE 802.11a/g/n, operating in the 2.4 and 5 GHz bands, specifies per-stream airside data rates ranging from 6 to 54 Mbit/s. If both devices can use "HT mode" (added with 802.11n ), the top 20 MHz per-stream rate is increased to 72.2 Mbit/s, with the option of data rates between 13.5 and 150 Mbit/s using a 40 MHz channel.

  8. British Rail Class 37 - Wikipedia

    en.wikipedia.org/wiki/British_Rail_Class_37

    4.2.3 EWS/DB Schenker. 4.2.4 West ... 37/9s in the late 1980s to evaluate Mirrlees and Ruston engines for ... locomotives were in works for conversion to the 37/4 ...

  9. 4-6-2+2-6-4 - Wikipedia

    en.wikipedia.org/wiki/4-6-2+2-6-4

    Evolved from. 2-6-2+2-6-2. Under the Whyte notation for the classification of steam locomotives by wheel arrangement, a 4-6-2+2-6-4 is a Garratt or Union Garratt articulated locomotive using a pair of 4-6-2 engine units back to back, with the boiler and cab suspended between them. The 4-6-2 wheel arrangement of each engine unit has four leading ...