Posted on 05/20/2013 4:54:37 PM PDT by stockpirate
NO LINK ON THEIR WEBSITE YET,
Sorry if this was already answered by I just saw the major on CNN and he said the reason was it is too expensive to add the storm shelters in older schools. The newer schools have them, though.
To answer that, download the Radar Navigation and Maneuvering Board Manual. Go to page 258 (Chapter 6), Course at specified speed to pass another ship at maximum and minimum distances, which is also applicable to tropical storms.
You can see there that the course you want to take is dependent on the vectors and magnitude of your car and the tornado, and that it's not a right angle. In the example provided there, where the other ship has a course of 300 degrees, neither your own maximum distance by taking a course of 000 (=360) degrees nor your minimum distance by taking 240 degrees approximate a right angle (30 and 210) from a storm.
Remember that if you take a right angle (a) from a storm's path, it's closest point to you, when it passes, will lie at the intersection of your path and its own (A; plot your line in the other direction). But if you're driving at an angle (b) that keeps you ahead of the storm's path while heading away from it, when that storm reaches point A, you're still ahead of the storm and can still drive further before it reaches closest point of approach B.
I don't know if that direction is normally 60 degrees from the storm's course or if it just happened that way in the example they gave on the maneuvering board. I haven't practiced any of these in real life and just know about the maneuvering board because I was looking things up for a roleplaying game.
I am a sports photographer.
You learn pretty quick that you do not run from an on coming play. You run at a 45 degree angle in the direction of the play, but off to the side of it. This allows you to put distance between you, but also keep you eye on them. The play would have to make a significant course change to hit you.
Otherwise you might get run down.
In general, hallways can be reinforced to with stand EF3s. Beyond that, I am not certain that the capability exists.
I live in Missouri, and one of our local businesses was exploring how to do this since they weren't able to get a basement. The construction companies were willing to bid up to EF3. Not sure why - Maybe the technology is iffy for such a large area, or maybe a liability issue for the company/architect.
Oh, I'm sure they spent plenty of money....(salaries and benefits...salaries and benefits)
This accurately displays that it IS NOT..."for the children"
Holy crap bro. Good to see you back. Come to a Texas Shoot. I wont be at this next one but will at the one after that.
For example, the effects of hydrophilic soils could be mitigated by digging an extra large foundation hole and backfilling around the actual concrete basement with materials that can absorb the expansion and contraction of the soil.
I'd rather have an underground shelter with cracked walls and a sump pump than have to deal with an F5 tornado above ground level.
Of course in real life, you'd have to be real lucky and find a road that veers off at the correct angle for any of that to apply.
Out there, in some of those state, they have a county dirt road matrix that surrounds the sections (square miles) so you could zig zag.
Maybe they are, but a tornado shelter isn't that big, and if your family's life were to depend on it, expense is probably a secondary consideration.
If they are only talking about sandstone, which you can break through with a crowbar, I've seen them drill and blast granite out here in various construction projects. Granite is as hard, or harder than commercial concrete.
You can rent an electric jack hammer. One of those, some beer and a few guys with shovels could probably make an 8x8 or appropriately sized hole in half a day.
The rest is traditional concrete/rebar construction. Put in an air vent and a sump pump. The whole thing wouldn't have to be below grade, you could berm up dirt over it. Might want to check it periodically for rattlesnakes.
During the reporting, I saw a couple of doors into the ground where people had survived this twister, so it is possible.
Judging by the fact that pieces of heavy debris had been moved long distances, they are now considering upgrading the storm's rating to an E5.
Thanks for the mention Jeff. That kind of ground formation is very strange to me. Sounds like you were kept pretty busy with those trees and posts.
Truly heart-breaking as I watched it yesterday. Now these children? Don’t have the words...
“..God bless my fellow Okies....”
God bless our fellow Americans... and those families who lost loved ones...
they are saying now only 9 children died...
Actually that's the same thing I was asking others today. Some said that it could have been either or, or a combination of both.
Here’s two miracles that happened:
http://weaselzippers.us/2013/05/21/amazing-story-of-survival-in-oklahoma/
An elderly woman survives her house collapsing on top of her...and finds her dog under the rubble as well, still alive.
“...I’ll take a hurricane over a tornado ANYDAY....”
I’ll pass on BOTH if at all possible... They both suck.
Hurricane Sandy almost brought a tree down on my kitchen; my son and I threw ourselves onto the trunk and PUSHED it away from the house as it started uprooting. No exaggeration.
Not a fun time... not at all.
To me, although it would involve some costs...new schools or old schools could be retrofitted with reinforced concrete walls and ceilings. Doors into the classrooms are what would be the issue - not sure how to secure those, or make them not look like prison doors....but at least they wouldn’t have ceilings, debris, or building collapses around the hall ways like we saw yesterday. Architecturaly, it probably wouldn’t look nice....but it seems like it would be an easy retrofit...
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