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297:. The cabs on the rebuilt units were referred to as "Crandall Cabs." The BNSF also experimented with a single GP60B to make it a "A unit" by using an Ex-UP SD40-2 cab on a GP60B frame and body, also required to move was the Dynamic blister from the front of the unit to the middle of the unit to make room for the cab.
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In some cases, A units were converted to B units. If the unit had been involved in a collision which damaged the cab, it was sometimes more cost-effective to rebuild the unit without the cab. In rarer cases, B units were converted to A units. The
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Typical driving cab features, and therefore A unit features, include windshields, rectangular side windows, crew seats, heating, and sometimes, radios, air conditioning and toilets. B units always lack all of these features, except that some
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This terminology has fallen out of use for newer locomotives, since it only really applied to the
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of several locomotives controlled from a single position. This terminology is generally used in
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343:. Kalmbach Books. Library of Congress Catalog Card No. 66-22894.
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320:. Osceola, WI: MBI Publishing Company. pp. 56–57.
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244:have an extra porthole-style side window(s) for a
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113:introducing citations to additional sources
69:Learn how and when to remove this message
103:Relevant discussion may be found on the
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260:style of locomotive. Thus, the term
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341:The Second Diesel Spotter’s Guide
287:Chicago and North Western Railway
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317:The American Diesel Locomotives
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339:Pinkepank, Jerry A. (1973).
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205:electric locomotive
203:(or more rarely an
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280:Conversions
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270:Hood unit
105:talk page
268:design.
262:cab unit
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