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  2. List of Great Northern Railway (U.S.) locomotives - Wikipedia

    en.wikipedia.org/wiki/List_of_Great_Northern...

    First "Northerns" built with 80" driving wheels; Timken roller bearings replaced friction bearings in 1945; 2577, 2582, 2586, 2587 & 2588 received Vestibule cab; 2584 preserved [1] Last New GN Steam from Outside Builder.

  3. Great Northern F-8 - Wikipedia

    en.wikipedia.org/wiki/Great_Northern_F-8

    The Great Northern F-8 is a class of 125 2-8-0 "Consolidation" type steam locomotives built by the Rogers Locomotive and Machine Works, their corporate successor the American Locomotive Company, and Baldwin Locomotive Works between 1901 and 1907 and operated by the Great Northern Railway until the mid 1950s. They operated throughout the Great ...

  4. EMD F7 - Wikipedia

    en.wikipedia.org/wiki/EMD_F7

    The F7 succeeded the F3 model in GM-EMD's F-unit series, and was replaced in turn by the F9. Final assembly was at GM-EMD's La Grange, Illinois , plant or GMD's London, Ontario , facility. There was no F4, -5 or -6 model; "7" was chosen to match the contemporary twin-engine E7 , and was also applied to the new GP7 road-switcher.

  5. EMD F-unit - Wikipedia

    en.wikipedia.org/wiki/EMD_F-unit

    The FT, introduced in 1939 with the new 1,350 hp (1.01 MW) 567 engine and Blomberg B trucks, was a successful design, and remained in production during WWII.. The F3 (1946) had a different roof arrangement that included the replacement of the FT's boxy dynamic brake structure with two under-roof grids, two exhaust stacks instead of four, and four cooling fans grouped together instead of ...

  6. Guide number - Wikipedia

    en.wikipedia.org/wiki/Guide_number

    Thus, a subject 11 meters or 36 feet away will be correctly illuminated (GN 44 (m) ÷ f /4 = 11 m, and GN 144 (ft) ÷ f /4 = 36 ft). For the same guide number and an aperture of f /8, the light source must be 5.5 meters or 18 feet from the subject.

  7. EMD SW1200 - Wikipedia

    en.wikipedia.org/wiki/EMD_SW1200

    A cow–calf variation, the TR12, was cataloged, but none were built.. An SW1200RS (RS for road switcher) is a variation of the standard SW1200 that features large front and rear (on some units) numberboard housings, EMD Flexicoil B-B trucks, and larger fuel tanks for road switcher service.

  8. GM F40 transmission - Wikipedia

    en.wikipedia.org/wiki/GM_F40_transmission

    The GM MR6/F40 six-speed manual transaxle was first developed for GM Europe by Saab Powertrain, for use in Saab and Opel applications. Originally a design developed by GM Powertrain Sweden Södertälje - Europe six-speed manual transaxle was originally built by Saab in its transmission plant in Gothenburg, Sweden (2002-2003) but production was moved to Opel in Rüsselsheim am Main, Germany ...

  9. Minolta A-mount system - Wikipedia

    en.wikipedia.org/wiki/Minolta_A-mount_system

    An entry-level camera, exposure mode was program AE only, with a high-speed program option, no Creative Expansion Card support. An even more basic Maxxum, this camera was basically for the point-and-shoot user that wanted a system SLR camera with interchangeable lenses and more powerful flashes, but did not want the features on, or did not want to pay for the 5000i, 7000i, 8000i cameras.