OPERATION HARDTACK. Project 3.3. Shock Loading in Ships from Underwater Bursts and Response of Shipboard Equipment
DAVID TAYLOR MODEL BASIN WASHINGTON DC
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The shock loading in ships and the response of shipboard machinery were measured during Shots Wahoo and Umbrella to 1 determine safe- and shock- damage ranges, particularly with respect to shipboard machinery and equipment, for delivery of antisubmarine nuclear weapons by destroyers and submarines 2 determine the intensity and character of the shock motions on a submarine and on a merchant ship under quasi-lethal attack by and underwater nuclear explosion and 3 acquire shock-motion data and correlate such data with other measurements and with theory in order to extrapolate the results to other attack geometries. Conclusions include 1 The shock damaging ranges for ships from underwater explosions depend greatly on the design and condition of the machinery and equipments as well as on charge size, burst depth, water depth, and the like. 2 Immobilization ranges for a destroyer are given as horizontal ranges from surface zero to the center of the ship. 3 Temperature gradients in the water increase or decrease the damage ranges.
- Marine Engineering
- Undersea and Antisubmarine Warfare
- Nuclear Weapons