#Saferoom survived f5 skin
#Saferoom survived f5 free

If the heroes don't get ripped out immediately, they wish they were because the leather will tear off the muscles and ligaments. And not with a securely fitting harness used on the thigh like a climber which can actually hold this amount of force, but with an improvised leather strap around the upper torso. If Bill weighs 1000 N, he is pulled with a force of 4000 N (!). Unfortunately for our daring heroes wind force squares with linearly increasing speed, so the actual force quadruples. Now an F5 starts with 116 m/s (260 mph, 420 km/h) which is the nearly exactly two times the terminal velocity speed. This means that the wind speed has exactly enough force to lift the weight of the human body.

#Saferoom survived f5 free

The free fall terminal velocity of a human being is approximately 55 m/s (120 mph, 200 km/h). We can realistically estimate the amount of force someone will experience in a F5 tornado. Almost nothing depicted in this film is realistic. Twister is a steaming pile of Hollywood horseshit. There have been no reports of any deaths in properly built above-ground safe rooms, Keisling says.įor Bill and Jo to survive they would have had to get to a proper shelter. In fact, above-ground safe rooms can be safer because they’re more likely to be used when severe storms move in, he says. Properly built, above-ground safe rooms - typically a hardened indoor closet or room reinforced with concrete and steel - are just as safe as underground shelters, says Texas Tech’s Ernst Kiesling, who’s also the executive director of the National Storm Shelter Association. Researchers theorize that most of the damage caused is from substandard building design. If anything I think this would be the most likely cause of death.Īs seen above if whole houses are disintegrated, I find it highly unlikely our heroes made it out of that one in one piece, let alone alive.Ī real F5 tornado in 2011 killed 168 people in Joplin, MO.

#Saferoom survived f5 skin

Shrapnel: All the wood, glass, and metal flying around at hundreds of miles per hour would certainly be enough to pierce the skin and be lethal.I am not an expert, but a rough search leads me to believe the tensile strength of of leather is only 570 Newtons, or about 128 pounds which would not be enough to hold two fully grown adults. What will matter is tensile strength of the leather strap they are tied off on. Connection method: Again, the depth of the pipe will not matter.The first failure point will be the elbow joints not the line pipe. Depth of Pipe: Sure, the pipes may go down thirty feet, but they are attaching themselves to the horizontal piece above ground.Strong frame houses lifted off foundations and carried considerable distances to disintegrate automobile sized missiles fly through the air in excess of 100 meters trees debarked steel re-inforced concrete structures badly damaged. On the Fujita Scale an F5 tornado's winds are 261-318 miles per hour.