Marker Logo HMdb.org THE HISTORICAL
MARKER DATABASE
“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Near Cooperstown in Griggs County, North Dakota — The American Midwest (Upper Plains)
 

More than Meets the Eye

Ronald Reagan Minuteman Missile State Historic Site

— November-33 Launch Facility —

 
 
More than Meets the Eye Marker image. Click for full size.
Photographed By Ruth VanSteenwyk, July 24, 2020
1. More than Meets the Eye Marker
Inscription.  The launch facility consists of three major below ground features: the launch tube (or silo), the launcher equipment room (LER), and the launcher equipment building (LEB). These features were built to monitor and protect the missile while keeping it constantly ready to launch.

The launch tube is 91 feet deep and approximately 12 feet across. Inside the launch tube, the nearly 60-foot-tall Minuteman missile was suspended above the bottom of the launch tube on the missile suspension system. The suspension system allowed the missile to absorb shock and provided a launch platform.

The LER is a two-story structure that surrounds the top portion of the launch tube. The LER contains the electrical components (or racks) that support and monitor the missile. The LER also houses the lithium batteries that provide backup power to the missile system if both commercial power and backup generator power fails. The floors of the LER are suspended by shock isolators (similar to the Launch Control Center floor and the Oscar-Zero Missile Alert Facility).

Entrance to the LER is gained through the 42-inch diameter personnel access
Paid Advertisement
Click on the ad for more information.
Please report objectionable advertising to the Editor.
Click or scan to see
this page online
shaft, which is closed and protected by two combination locks and a large steel plug. To gain access, the first combination lock, called the A circuit, is unlocked and removed from the security pit. Then the 2,700-pound primary door can be raised. Beneath the primary door is the secondary door, or B plug. Once a combination is successfully dialed into the top of the 14,000-pound B plug, it slowly lowers to the bottom of the personnel access shaft and permits access to the LER.

The launcher equipment building (LEB) is buried beside the launcher. The LEB houses the back up diesel generator (for use when commercial power fails) and an environmental control system (air conditioner ) for the launch facility. These systems ensure the launch facility is well as the ladder that is used to descend to the LEB, can be seen on the surface.

Photo captions
The top diagram of the launcher shows the launch tube, launcher equipment room, personnel access shaft, and launcher equipment building. The bottom diagram is a detailed diagram of the launcher equipment room that surrounds the top of the launch tube.
Inside the launch tube, and Air Force missile maintainer inspects the Minuteman missile.
With the A circuit unlocked and removed (foreground) and the primary door raised (background) a security escort team member stands guard at the launch facility.
An
More than Meets the Eye Marker image. Click for full size.
Photographed By Ruth VanSteenwyk, July 24, 2020
2. More than Meets the Eye Marker
artist's rendition of the launch tube, launcher equipment room, personnel access shaft, and launcher equipment building (the airman in the image is nearing the launcher equipment building).

 
Erected by State Historical Society of North Dakota.
 
Topics. This historical marker is listed in this topic list: War, Cold.
 
Location. 47° 26.39′ N, 98° 3.954′ W. Marker is near Cooperstown, North Dakota, in Griggs County. Marker can be reached from North Dakota Route 200, 0.2 miles east of 116th Avenue NE, on the right when traveling east. Touch for map. Marker is at or near this postal address: 11622 ND-200, Cooperstown ND 58425, United States of America. Touch for directions.
 
Other nearby markers. At least 8 other markers are within 3 miles of this marker, measured as the crow flies. Missile Maintenance (here, next to this marker); Launch Facility Security (a few steps from this marker); Launcher Closure Door (a few steps from this marker); Missile Transport (a few steps from this marker); The Minuteman: America's "Ace in the Hole" (within shouting distance of this marker); Strategic Arms Reduction Treaty (START) (within shouting distance of this marker); November-33: "Ace in the Hole" (within shouting distance of this marker); Opheim Cabin (approx. 2.7 miles away). Touch for a list and map of all markers in Cooperstown.
 
Also see . . .
November-33 wide view image. Click for full size.
Photographed By Ruth VanSteenwyk, July 24, 2020
3. November-33 wide view
 Ronald Reagan Minuteman Missile State Historic Site Information. (Submitted on March 26, 2021, by Ruth VanSteenwyk of Aberdeen, South Dakota.)
 
Historic Site Sign image. Click for full size.
Photographed By Ruth VanSteenwyk, July 24, 2020
4. Historic Site Sign

Ronald Reagan Minuteman Missile
State Historic Site
November-33
State Historical Society of North Dakota
 
 
Credits. This page was last revised on March 27, 2021. It was originally submitted on March 25, 2021, by Ruth VanSteenwyk of Aberdeen, South Dakota. This page has been viewed 217 times since then and 6 times this year. Photos:   1, 2, 3, 4. submitted on March 26, 2021, by Ruth VanSteenwyk of Aberdeen, South Dakota. • Mark Hilton was the editor who published this page.

Share this page.  
Share on Tumblr
m=169343

CeraNet Cloud Computing sponsors the Historical Marker Database.
U.S. FTC REQUIRED NOTICE: This website earns income from purchases you make after using links to Amazon.com. Thank you.
Paid Advertisements
Feb. 20, 2024