Looks like they were being shoved by the widebodies on the tail. I have my own wild-as...I can imagine guess: a little too much oomph throu a switch after a brake application that didn't have time to fully release? looks like the dead engines are just brakepipe'd.
The opinions expressed here represent my own and not those of my employer, any other railroad, company, or person.
7j43kLooking at the lead (in direction of travel) truck on the blue GP38, I see a wheel bumping upwards significantly at 1:55. And not much for a ways. And then the increasing derailment. Ed
That was my observation as well that it was the GM leasing Geep that bit the ballast first and if you listen carefully you can hear the loud steel on steel clank of a very heavy steel object being dropped a foot or so and a wisp of dust from the front of the Geep.
What I don't understand though is why it took the Locomotive Engineer so long to realize there was an issue. He had to have felt the slight tug of resistance on the consist as that unit hit the ground vs traveling on the rail. Beats me though, just seemed like it took him a while to realize there was an issue.
Looking at the lead (in direction of travel) truck on the blue GP38, I see a wheel bumping upwards significantly at 1:55. A few feet later, the truck starts spreading a dust cloud in the air. Then it looks like it might rerail itself (it happens once in awhile). And then the increasing derailment.
I tried to see if the CP loco leading also experienced such a "wheel bump" and didn't see anything.
Ed
bogie_engineerThe MP15 did not have alignment control draft gear. When we shipped them besides the coupler swing limiting blocks BaltACD mentions, there were bolster stops applied that limited lateral motion bolster to truck frame to about 1" instead of the 2.25" new clearance, all to avoid jack-knifing. But I wouldn't have expected with only two engines ahead of it to derail as it did. Dave
Dave
What I was thinking the 2 'little' engine being moved without coupler limiting blocks (grain elevator they called home likely had serious curvature) - looked like the lead engine in the move was the controlling engine and there were what - 7 or 8 engines behind the 'little 2'. If there was a small element of 'slack run in' from the trailing engines the force of the run in against the coupler/draft gear with unrestrined couplers could have created stresses to spread the rail - and all fall down on the ground.
I am not an engineer and stayed at a Holiday Inn several years ago.
Never too old to have a happy childhood!
Looking at 2:01 does the GP40 jump when going over the grade crossing?
Watching the video, the train was moving forward under the overpass when the engines derailed.
Wild speculation in advance of the facts from an investigation.
Was this a backing move without the proper visibility, crew member giving signals on the ground? Did the two units in question derail on a switch set against their direction of movement?
If GM "killed the electric car", what am I doing standing next to an EV-1, a half a block from the WSOR tracks?
The MP15 did not have alignment control draft gear. When we shipped them besides the coupler swing limiting blocks BaltACD mentions, there were bolster stops applied that limited lateral motion bolster to truck frame to about 1" instead of the 2.25" new clearance, all to avoid jack-knifing. But I wouldn't have expected with only two engines ahead of it to derail as it did.
CMStPnP https://www.youtube.com/watch?v=MYX7oU-E2B4
https://www.youtube.com/watch?v=MYX7oU-E2B4
Wondering if the GMTX engines had coupler limiting blocks installed?
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