A harpoon cannon with a grenade tipped harpoon is fired at the target whale. Connected to the fore shaft of the harpoon is the toggle head spear tip. The late-19th-century introduction of the explosive harpoon allowed whalers to accelerate their take. A "line" attached to a whaling harpoon was about 150 fathoms long (). The end-blades were hafted onto harpoon heads. The submarines can now attack targets both at sea and on land with Harpoon missiles. A recent development in harpoon technology is the hand-held speargun. Amhimitl is Mixcoatls harpoon (or dart) just like Xiuhcoatl is Huitzilopochtli's weapon. This was the first surface to surface firing of a Harpoon missile in combat. Lightning strikes the mast, setting the doubloon and Ahab's harpoon aglow. Kovac enters a tackle shop and is killed with a harpoon gun. Some trucks carry a battery containing four US Harpoon or Patriot missiles for launching. Block IIIA and 32 RGM-84L Block II Harpoon anti-ship missiles. These phases were primarily distinguishable by gradual changes in harpoon head and arrow styles. The initial proposal was rejected as inferior to the Harpoon missile.