Search results
Results from the WOW.Com Content Network
Blast doors in a missile control bunker at Minot Air Force Base, North Dakota. The 25-ton blast door in the Cheyenne Mountain nuclear bunker is the main entrance to another blast door (background) beyond which the side tunnel branches into access tunnels to the main chambers.
The bank's basement contained vault doors weighing 60 short tons (54 long tons; 54 t) each. [44] The basement covers 15,000 square feet (1,400 m 2 ) and is used as a baseball and softball facility, [ 17 ] [ 45 ] which opened in 2000.
Frederick S. Holmes was an American safe and vault engineer, [1] and inventor who designed the largest vaults in the world. During his career, Holmes designed over 200 vaults throughout the United States, Canada and Japan from 1895 [2] to 1941.
This large 24-bolt Diebold vault door at the Winona National Bank was built in the early 1900s. On the right is the back side of the open door. On the right is the back side of the open door. To the right of the door's center are two linked boxes for the combination mechanisms and to the left is a four-movement time lock .
According to a Mosler brochure, both the vault door and emergency door are 21 inches (53 cm) thick and made of the latest torch-and-drill-resistant material of the time. The main vault door weighs 20 short tons (18 metric tons), and the vault casing is 25 inches (64 cm). [39] The vault door is set on a 100-hour time lock and is rarely opened ...
A United States Government Class 5-B vault door, which has been tested and approved by the Government under Fed. Spec. AA-D-600D, is ballistic resistant and affords the following security protection: 20 man-hours against surreptitious entry. 30 man-minutes against covert entry. 10 man-minutes against forced entry.
Plans to house the USSPACECOM and NORAD command centers in the same location began by July 1994. [47] A $450 million upgrade was made to the missile warning center beginning in February 1995. The effort was part of a $1.7 billion renovation program for Cheyenne Mountain. [48] 'Granite Sentry' was an improvement program for the complex. [49]
Area codes 213, 323, and 738 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. They are assigned in an overlay complex to a numbering plan area (NPA) that comprises, roughly, the area of downtown Los Angeles City , as well as several southeast Los Angeles County cities, such as Bell and ...