UP 4-6-6-4 'Challenger'

kingmush Administrator Posts: 53	UP 4-6-6-4 'Challenger' Dec 10, 2010 12:42:15 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by kingmush on Dec 10, 2010 12:42:15 GMT -5 Disscuss. ... The less powerful successor to the infamous 'Big Boy', this locomotive had larger route availability and a faster speed of 60mph.

IRW Moderator Posts: 40	UP 4-6-6-4 'Challenger' Dec 10, 2010 17:54:32 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by IRW on Dec 10, 2010 17:54:32 GMT -5 Otherwise known as 'Big Boy'...right?
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kingmush Administrator Posts: 53	UP 4-6-6-4 'Challenger' Dec 11, 2010 6:11:43 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by kingmush on Dec 11, 2010 6:11:43 GMT -5 'Big Boy' 4-8-8-4 'Challenger' 4-6-6-4

IRW Moderator Posts: 40	UP 4-6-6-4 'Challenger' Dec 11, 2010 6:37:06 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by IRW on Dec 11, 2010 6:37:06 GMT -5 It's one MASSIVE train.
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kingmush Administrator Posts: 53	UP 4-6-6-4 'Challenger' Dec 11, 2010 8:44:10 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by kingmush on Dec 11, 2010 8:44:10 GMT -5 That I can agree on.

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UP 4-6-6-4 'Challenger' Dec 11, 2010 9:13:40 GMT -5

Quote

Disscuss.

... The less powerful successor to the infamous 'Big Boy', this locomotive had larger route availability and a faster speed of 60mph.

'BigBoy' could go 60 mph with a load of 4040 tons.

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kingmush Administrator Posts: 53	UP 4-6-6-4 'Challenger' Dec 11, 2010 9:42:51 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by kingmush on Dec 11, 2010 9:42:51 GMT -5 Big Boy theoretically could reach 80, but the weight of the loco and the friction from 24 wheels slowed it to about 55.