A ship is scuttled when its crew deliberately sinks it, typically by opening holes in its hull.
The Monument to the Sunken Ships, dedicated to ships destroyed during the siege of Sevastopol during the Crimean War, designed by Amandus Adamson
A sunken ship at Sevastopol, 1858
Merrimack alight on 20 April 1861
The wreck of USS Merrimac
A self-destruct is a mechanism that can cause an object to destroy itself or render itself inoperable after a predefined set of circumstances has occurred.
A Russian anti-personnel land mine POM-3 (Russian: Противопехотная Осколочная Мина, lit. 'Infantry shrapnel mine') with a self-deactivation mechanism that disables the mine upon expiration of battery charge.