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55:
202:. Although of modest power, 2,000 hp (1,500 kW), they were heavy and also geared for a high tractive effort at low speeds; so they required good traction. Rather than more conventional three-axled bogies for a Co-Co arrangement, a four-axled bogie was required. This would have been an excessively long wheelbase and so hard on track curves. A solution was to articulate the bogie itself, making each bogie a Bo+Bo chassis.
321:
150:
16:
98:
140:
such as the South
African or Japanese narrow gauge systems with long locomotives found Bo+Bo advantageous over Bo-Bo as there was less overhang of the couplers and so less sideways misalignment on tight curves.
236:
of the ТЭМ7. For the ChME5 though, the vertical forces were taken through the over-bogie frames, but the tractive effort were taken by coupling the sub-bogies as a Bo+Bo.
377:
131:
40:
with an articulated connection between them, with the drawbar forces taken through these bogies, and with all axles powered by individual
358:
88:
of 1901. These had two separate chassis and half-cabs, linked by a pin connector. A canvas dodger joined the gap between the cabs.
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95:
spanned the two bogies and was pivoted upon them. As these pivots did not carry the tractive force, they could be of simple design.
54:
299:
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arrangement where the two bogies are mounted beneath a shared frame, and the forces are taken through that frame.
392:
387:
211:
185:
158:
74:
59:
351:
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had already used a (Bo′Bo′)(Bo′Bo′) layout with sub-bogies. The ChME5 repeated this, and retained the large
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119:
115:
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33:
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295:
267:
126:
328:
79:
64:
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153:
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85:
41:
371:
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Encyclopædia
Britannica, Volume 18, 1969 Edition, p1118 Table IV, SBN(GB) 85229 004 7
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21:
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The type was important for early electric locomotives such as the first
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290:(1984). "11. Non-steam developments on all four main line railways".
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Later designs resembled the Bo-Bo layout, where a single large
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In the 1980s an extension of the Bo+Bo concept was used by
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of 1903, showing the connection between bogies and drawbar
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114:Typical mid-century Bo+Bo locomotives include the
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8:
58:Partial sectioned drawing of a small boxcab
294:. Vol. 2 1930-1960. pp. 152–153.
262:Hollingsworth, Brian; Cook, Arthur (2000).
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292:British Locomotives of the 20th Century
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47:This is in contrast to the more common
327:This locomotive-related article is a
7:
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167:and the four-axled articulated bogie
36:, with two four-wheeled chassis or
331:. You can help Knowledge (XXG) by
14:
194:, a small class of a dozen large
378:Locomotives by wheel arrangement
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102:LNER 6000, the prototype of the
1:
409:
314:
124:Japanese National Railways
104:British Railways class 76
32:wheel arrangement is an
20:Baltimore and Ohio LE-1
108:Dutch national railways
106:, while on hire to the
84:in 1899 or the Italian
75:Baltimore and Ohio LE-1
60:Baltimore and Ohio LE-2
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116:South African Class 1E
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70:
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196:switching locomotives
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234:secondary suspension
220:and the high-speed
205:The earlier Soviet
34:electric locomotive
266:. pp. 26–27.
264:Modern Locomotives
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383:Bo+Bo locomotives
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136:. Railways using
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393:Locomotive stubs
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145:(Bo′Bo′)(Bo′Bo′)
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388:B-B locomotives
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42:traction motors
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200:Donets Railway
177:Czechoslovakia
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333:expanding it
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210: [
184: [
157: [
130: [
78: [
63: [
22:steeple cab
372:Categories
301:0850595967
288:Nock, O.S.
240:References
138:Cape gauge
230:flexicoil
173:ČKD Praha
198:for the
179:for the
127:JNR ED17
120:Class 2E
232:-style
122:or the
110:in 1947
24:in 1899
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93:boxcab
38:bogies
222:TEP80
218:]
192:]
181:ChME5
165:]
154:ChME5
134:]
86:E.430
82:]
67:]
49:Bo-Bo
30:Bo+Bo
329:stub
296:ISBN
268:ISBN
228:and
207:ТЭМ7
118:and
175:in
374::
216:ru
214:;
212:de
190:ru
188:;
186:de
163:ru
161:;
159:de
132:ja
80:de
65:de
44:.
28:A
360:e
353:t
346:v
335:.
304:.
276:.
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