Re: Ed, that is my experience,with the physics of choo-choo's as well.
Author: Dr Zarkoff
Date: 01-23-2018 - 17:11
To put some numbers on the situation, sliding the wheels for whatever reason reduces stopping capability by about 50%, and it doesn't matter whether the wheel is stationary and sliding on the rail or the wheel is spinning on the rail.
Whether reversing the motors produces retarding effort, even a diminished variety, is dependendent on how they are wired in the electrical cabinet. EMD's connection scheme is such that if there is a ground relay (which would be caused by a TM flashover), the connections necessary to produce retardation would be severed when the contactors dropped out, which is what Hot Water is getting at. DC electric locomotives, like the Milw's, would probably do nothing because of the three running speeds, although an inspection of the electrical schematics would be necessary to make a positive determination.
BNSF engr claims wrongly fired in Portland, OR, incident
|
SP 0-6-0 |
01-22-2018 - 14:01 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
Reader |
01-22-2018 - 14:07 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
Pdxrailtransit |
01-22-2018 - 14:51 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
Dr Zarkoff |
01-22-2018 - 19:18 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
Pdxrailtransit |
01-22-2018 - 20:16 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
Dr Zarkoff |
01-23-2018 - 11:23 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
Nussel Snouts |
01-22-2018 - 16:17 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
George Andrews |
01-22-2018 - 19:04 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
UP6900 |
01-23-2018 - 02:13 |
Re: Norvells are good people
|
John Leslie Micheal Beagle,an |
01-24-2018 - 15:21 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
Erik H. |
01-22-2018 - 21:34 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
Nudge |
01-23-2018 - 11:21 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
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?
|
BOB2 |
01-23-2018 - 11:53 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
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.
|
BOB2 |
01-23-2018 - 14:23 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
|
Hot Water |
01-23-2018 - 14:43 |
Re: Ed, that is my experience,with the physics of choo-choo's as well. |
Dr Zarkoff |
01-23-2018 - 17:11 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
|
102500 |
01-23-2018 - 20:12 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
|
Dr Zarkoff |
01-24-2018 - 13:29 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
|
ex-BN |
01-23-2018 - 17:14 |
Re: Zark we have at least one candidate for recertification.....
|
BOB2 |
01-23-2018 - 17:30 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
|
Dr Zarkoff |
01-23-2018 - 17:33 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
|
ex-BN |
01-23-2018 - 18:16 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
|
BOB2 |
01-23-2018 - 19:06 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
|
ex-BN |
01-23-2018 - 19:42 |
Re: Really? Sliding the wheels by putting in reverse somehow creates more friction on icy rail?
|
BOB2 |
01-23-2018 - 20:55 |
Re: Really? Sliding the wheels by putting in reverse somehow creates more friction on icy rail?
|
Dr Zarkoff |
01-23-2018 - 22:24 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
|
Dr Zarkoff |
01-23-2018 - 19:15 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
|
Chris Walker |
01-23-2018 - 20:12 |
Re: Ed, that is my experience,with the physics of choo-choo's as well.
|
Ed Workman |
01-24-2018 - 08:05 |
Re: Ed, steam choo-choo's could reverse and didn't have air brakes way back then..
|
BOB2 |
01-24-2018 - 08:39 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
Dr Zarkoff |
01-23-2018 - 17:27 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
Nudge |
01-23-2018 - 18:39 |
Re: BNSF engr claims wrongly fired in Portland, OR, incident
|
Dr Zarkoff |
01-23-2018 - 19:18 |
Re: So what is thet claim you're trying to make here Nudge?
|
BOB2 |
01-23-2018 - 19:24 |
Re: So what is thet claim you're trying to make here Nudge?
|
Dr Zarkoff |
01-23-2018 - 19:40 |
Re: So what is thet claim you're trying to make here Nudge?
|
Nudge |
01-25-2018 - 11:19 |