Vid of Tornado taking *TRAIN* cars off track!!! [Archive]

View Full Version : Vid of Tornado taking *TRAIN* cars off track!!!

Calz

22nd June 2011, 08:14

Damn ... tornadoes and flooding and nukes ( ... oh my).

8165

Gonna have to go back on vacation to the *ring o fire* where it is safer :)

(need to take link at bottom to see vid - not youtube so not sure how to post it here directly)

Tornado In Bradshaw, Nebraska Hits Train

Bradshaw, NE - Several freight train cars were blown off their tracks in central Nebraska Monday night as a storm system moved through the area.

This video was shot near Bradshaw in York County, Nebraska. The train cars were parked on the tracks on the outskirts of town when the twister hit. There were no injuries. It's not known whether the cars carried any cargo or who owns them.

There were also several reports of sheds and grain bins being destroyed.

The storms that roared across the state also damaged at least one home.

http://www.digtriad.com/news/national/article/180143/175/Nebraska-Tornado-Takes-Out-Train-Cars

Teakai

22nd June 2011, 10:04

Calz

22nd June 2011, 10:15

Woah.

I saw this one of a train carriage being derailed due to a tornado.

Is it better to be outside and keep and eye on a tornado and just go where it isn't or to hunker down in doors and hope for the best?

http://www.youtube.com/watch?v=LYubpuIe3cw&feature=related
Link:http://www.youtube.com/watch?v=LYubpuIe3cw&feature=related

I have always heard when driving and a tornado gets close (provided there are no underground shelters in solid buildings) you are supposed to find a ditch, valley or lowest lying area you can and flatten out. Theory goes it may pass over you.

*** adding ***

btw - fantastic vid :)

Calz

23rd June 2011, 15:44

Thanks to Love & Gratitude (from another thread) for this.

Looks like this tornado was either created or enhanced by technology.

Judge for yourself:

http://www.youtube.com/watch?v=RdtIwZX64Ig

onawah

23rd June 2011, 16:28

If that train car was derailed by a tornado, how come all the trees along the side of the track weren't uprooted?

Carmody

23rd June 2011, 16:44

think of a 4'x8' foot sheet of plywood seen as edge on by the wind, or on the flat side. Think of the way a kite or bird wing is used.

it's pounds of force per square foot of exposed area vs angle of windsheer and aerodynamics, etc. The pressure build on the side of the train cars was enough to tip a few off. What happens afterward is what you see in the video.

Using a bit of quickly found info on the net to make myself into a smarty pants..wind pressure within the max potential wind speed of a tornado is set at 300mph. This gives 404pounds of force to every square foot of surface area, with the wind being perpendicular to the surface under exposure.

The rail car size is about 55 feet by 14.5feet, for about 800 square feet of surface area. multiply that by 404 ft of pressure per square foot ..and you get to..a grand total of about 325,000 pounds of force in the side of the rail car. That is more than the allowable gross weight of a fully packed maximum strength rail car.

These numbers are not correct, but not by much, there is the issue of wind aerodynamics and affected structures, but this is just a basic thing we look at here.

If we drop the windspeed to about 175 to 200mph, we will still tip the rail car over as the force required for tipping is considerably less than for lifting.

http://www.worldtraderef.com/WTR_site/Rail_Cars/Guide_to_Rail_Cars.asp

http://www.monolithic.com/stories/building-survivability-the-strength-of-the-monolithic-dome

Wind Speed Pressure
70 mph 22 psf
100 mph 50 psf
150 mph * 100 psf
300 mph * * 404 psf

Calz

24th June 2011, 09:16

If that train car was derailed by a tornado, how come all the trees along the side of the track weren't uprooted?

Tornadoes are highly focused.

Lots of examples of one house being completely destroyed yet the house next to it left untouched.