Incident weapon

An incident weapon is typically an anti-vehicle device intended to inflict disabling damage or prevent escape without killing the vehicle operators.

Incident weapons were used by military personnel during the Cold War to discourage clandestine use of submarines within territorial waters without causing casualties which might escalate into warfare.

[1] The United States developed a modified Hedgehog projectile substituting a magnet and clapper for the explosive charge.

[1] Malin was similar to Elma, but substituted an acoustic transmitter for the shaped charge to simplify tracking under difficult sonar conditions in coastal waters.

[1] The standard Swedish Torped 42 40 cm (16 in) anti-submarine torpedo[2] warhead was replaced by a smaller explosive charge intended to merely damage submarine propellers or rudders after acoustic homing.