Mark 101 Lulu Nuclear Depth Charge

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Mark 101 Lulu Nuclear Depth Charge
Mark 101 Lulu Nuclear Depth Charge

National Museum of Nuclear Science & History

The U.S. Navy Mk 101 Lulu was a small implosion-type nuclear depth bomb. It replaced the Mk 7 Betty. Lulu weighed half as much as the Betty. Many Navy aircraft could carry it.

Hydrostatic fuses or a backup time fuse triggered the depth bomb. Lulu exploded at a depth and time that allowed delivery aircraft to escape.

Lulu developed in response to Soviet submarine fleet buildup. The U.S. military required a weapon that could inflict lethal damage on submerged, high speed submarines.

Lulu also functioned as an anti-ship weapon. The underwater blast generated violent waves that could rupture ship hulls.

The Lulu carried a W34 nuclear warhead.

Length: 7 ft 7 in (2.31 m)
Diameter: 18 in (0.46 m)
Weight: 1,200 pounds (544 kg)
Stockpiled: 1958-1971
Yield: Kiloton range

Attribution Noncommercial Some rights reserved
Taken on: November 13, 2018
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Camera: Canon PowerShot G16, f/1.8, 1/50 sec, 6.1mm, ISO 400 (more info) (hide info)
Camera: Canon PowerShot G16
Aperture: f/1.8
Exposure Time: 0.02 sec (1/50)
Focal Length: 6.1mm
ISO: 400
Exposure Bias: -2/3 EV
Flash: Off, Did not fire
Exposure Mode: Manual
Metering Mode: Multi-segment
White Balance: Auto
Color Space: sRGB
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