Just to Scare the Crap Out of You on Monday

[bayonetbrant]

A sneak peek at an upcoming book on America's nuclear mishaps

Stage 2, the upper section where the warhead sat, was smaller and held about one fourth of those amounts. If the missile were launched, fuel and oxidizer would flow through the stage 1 pipes, mix inside the combustion chambers of the engine, catch on fire, emit hot gases, and send almost half a million pounds of thrust through the supersonic convergent-divergent nozzles beneath it. Within a few minutes, the Titan II would be 50 miles off the ground.

The two propellants were extremely efficient—and extremely dangerous. The fuel, Aerozine-50, could spontaneously ignite when it came into contact with everyday things like wool, rags, or rust. As a liquid, Aerozine-50 was clear and colorless. As a vapor, it reacted with the water and the oxygen in the air and became a whitish cloud with a fishy smell. This fuel vapor could be explosive in proportions as low as 2 percent. Inhaling it could cause breathing difficulties, a reduced heart rate, vomiting, convulsions, tremors, and death. The fuel was also highly carcinogenic and easily absorbed through the skin.

The missile's oxidizer, nitrogen tetroxide, was even more hazardous. Under federal law, it was classified as a "Poison A," the most deadly category of man-made chemicals. In its liquid form, the oxidizer was a translucent, yellowy brown. Although not as flammable as the fuel, it could spontaneously ignite if it touched leather, paper, cloth, or wood. And its boiling point was only 70 degrees Fahrenheit. At temperatures any higher, the liquid oxidizer boiled into a reddish brown vapor that smelled like ammonia. Contact with water turned the vapor into a corrosive acid that could react with the moisture in a person's eyes or skin and cause severe burns. When inhaled, the oxidizer could destroy tissue in the upper respiratory system and the lungs. The damage might not be felt immediately. Six to twelve hours after being inhaled, the stuff could suddenly cause headaches, dizziness, difficulty breathing, pneumonia, and pulmonary edema leading to death.

Whenever a PTS team member put on a RFHCO, he had to be accompanied by someone else in a RFHCO, with two other people waiting as backup, ready to put on their suits. Every Category I task had to be performed according to a standardized checklist, which the team chief usually read aloud over the radio communications network. There was one way to do everything—and only one way. Technical Order 21M-LGM25C-2-12, Figure 2-18, told Powell and Plumb exactly what to do as they stood on the platform near the missile.

"Step four," the PTS team chief said over the radio. "Remove airborne disconnect pressure cap."

"Roger," Powell replied.

"Caution. When complying with step four, do not exceed 160 foot-pounds of torque. Overtorquing may result in damage to the missile skin."

"Roger."

As Powell used a socket wrench to unscrew the pressure cap, the socket fell off. It struck the platform and bounced. Powell grabbed for it but missed.

Plumb watched the nine-pound socket slip through the narrow gap between the platform and the missile, fall about 70 feet, hit the thrust mount, and then ricochet off the Titan II. It seemed to happen in slow motion. A moment later, fuel sprayed from a hole in the missile like water from a garden hose.

"Oh man," Plumb thought. "This is not good."

[Mr. Bigglesworth]

US plane in 1961 'nuclear bomb near-miss'

A four-megaton nuclear bomb was one switch away from exploding over the US in 1961, a newly declassified US document confirms.


Schlosser told the BBC such an explosion would have "changed literally the course of history".
The plane was on a routine flight when it began to break up over North Carolina on 23 January 1961.
As it was breaking apart, a control inside the cockpit released the two Mark 39 hydrogen bombs over Goldsboro.
One fell to the ground unarmed. But the second "assumed it was being deliberately released over an enemy target - and went through all its arming mechanisms save one, and very nearly detonated over North Carolina," Mr Schlosser told the BBC's Katty Kay.
Only the failure of a single low-voltage switch prevented disaster, he said.

The bomb was almost 260 times more powerful than the bombs that fell on Hiroshima and Nagasaki.
 


http://www.bbc.co.uk/news/world-us-canada-24183879