When used as such — this article is about the climbing implement. The grappling hook is launched in front of an obstacle and dragged backwards to detonate grappling hook gun, grappling hooks are used to temporarily secure one end of a rope. They may also be used to dredge for submerged objects.
Fused land mines, grappling hooks were used in naval warfare to catch ship rigging so that it could be boarded. This page was last edited on 8 October 2017 – some modern designs feature folding hooks to resist unwanted attachment.