Re: BNSF engr claims wrongly fired in Portland, OR, incident
Author: Ed Workman
Date: 01-23-2018 - 13:39
Question for you engineers
How effective is throwing the reverser?
And if it is, to what speed may it be counted on- or hoped for?
The reason I ask is from ancient times.
Capt Galton showed slipping wheels, as in reverse, were ineffective in stopping, as the sliding coefficient of friction is less than the static [which occurs at the point of contact of a rolling wheel]
Few engineers believed it, so a decade and a half later Mr. Best of the NC&StL did a series of tests just to show slipping reversed drivers was a poor way to attempt stopping from typical road speed.
Thanks
Regards
Ed
BNSF engr claims wrongly fired in Portland, OR, incident
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SP 0-6-0 |
01-22-2018 - 14:01 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Reader |
01-22-2018 - 14:07 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Pdxrailtransit |
01-22-2018 - 14:51 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Dr Zarkoff |
01-22-2018 - 19:18 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Pdxrailtransit |
01-22-2018 - 20:16 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Dr Zarkoff |
01-23-2018 - 11:23 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Nussel Snouts |
01-22-2018 - 16:17 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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George Andrews |
01-22-2018 - 19:04 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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UP6900 |
01-23-2018 - 02:13 |
Re: Norvells are good people
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John Leslie Micheal Beagle,an |
01-24-2018 - 15:21 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Erik H. |
01-22-2018 - 21:34 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Nudge |
01-23-2018 - 11:21 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Dr Zarkoff |
01-23-2018 - 11:38 |
Re: BNSF engr claims wrongly fired in Portland, and Eric H you know the facts of this case?
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BOB2 |
01-23-2018 - 11:53 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Graham Buxton |
01-23-2018 - 11:55 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident |
Ed Workman |
01-23-2018 - 13:39 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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BOB2 |
01-23-2018 - 14:23 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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Hot Water |
01-23-2018 - 14:43 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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Dr Zarkoff |
01-23-2018 - 17:11 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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102500 |
01-23-2018 - 20:12 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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Dr Zarkoff |
01-24-2018 - 13:29 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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ex-BN |
01-23-2018 - 17:14 |
Re: Zark we have at least one candidate for recertification.....
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BOB2 |
01-23-2018 - 17:30 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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Dr Zarkoff |
01-23-2018 - 17:33 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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ex-BN |
01-23-2018 - 18:16 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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BOB2 |
01-23-2018 - 19:06 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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ex-BN |
01-23-2018 - 19:42 |
Re: Really? Sliding the wheels by putting in reverse somehow creates more friction on icy rail?
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BOB2 |
01-23-2018 - 20:55 |
Re: Really? Sliding the wheels by putting in reverse somehow creates more friction on icy rail?
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Dr Zarkoff |
01-23-2018 - 22:24 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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Dr Zarkoff |
01-23-2018 - 19:15 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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Chris Walker |
01-23-2018 - 20:12 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
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Ed Workman |
01-24-2018 - 08:05 |
Re: Ed, steam choo-choo's could reverse and didn't have air brakes way back then..
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BOB2 |
01-24-2018 - 08:39 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Dr Zarkoff |
01-23-2018 - 17:27 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Nudge |
01-23-2018 - 18:39 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
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Dr Zarkoff |
01-23-2018 - 19:18 |
Re: So what is thet claim you're trying to make here Nudge?
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BOB2 |
01-23-2018 - 19:24 |
Re: So what is thet claim you're trying to make here Nudge?
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Dr Zarkoff |
01-23-2018 - 19:40 |
Re: So what is thet claim you're trying to make here Nudge?
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Nudge |
01-25-2018 - 11:19 |