AGM-84 Harpoon Anti-Ship Missile

The **Harpoon missile** is a weapon system that was developed on Earth and used by Japan. The JSDF modified the Harpoon with anti-armor warheads to deal with heavy-armored battleships of the Gra Valkas Imperial Navy as well as aerial targeting systems to strike flying battleship like the Pal Chimera.

## Overview

This is an all-weather, over the horizon, anti-ship missile that was developed by McDonnell Douglas (now part of Boeing) and uses active radar homing systems. It was designed to skim over the water in order to avoid detection and can be fired from land, aircraft or seagoing vessels.

Like all modern anti-ship weapons, it cannot punch through the thick armor of WW2 era battleship to severely damage and outright sink it without armor-piercing modification. Therefore, before the encounter with Gra Valkas Empire, the JSDF modified all their Harpoon missiles with reinforced steel warheads for anti-armor purpose.

## Specifications

* **Type:** Anti-ship missile
* **Weight :** 1,523 lb (691 kg) with booster
* **Length :**
	+ Air-launched: 12.6 ft (3.8 m)
	+ Surface- and submarine-launched: 15 ft (4.6 m)

* **Diameter :** 13.5 in (34 cm)
* **Warhead:** 488 pounds (221 kg)
* **Detonation mechanism:** Impact fuze
* **Engine:** Turbojet/solid propellant booster for surface and submarine launch
* **Wingspan:** 3 ft (0.91 m)
* **Operational Range:** in excess of 150 nautical miles (280 km) depending on launch platform:
	+ AGM-84D (Block 1C): 220 km (120 nmi)
	+ RGM/UGM-84D (Block 1C): 140 km (75 nmi)
	+ AGM-84E (Block 1E): 93 km (50 nmi)
	+ AGM-84F (Block 1D): 315 km (170 nmi)
	+ RGM-84F (Block 1D): 278 km (150 nmi).
	+ RGM/AGM-84L (Block 2): 278 km (150 nmi)
	+ AGM-84H/K (Block 1G / Block 1J): 280 km (150 nmi)

* **Flight Altitude:** Sea-skimming, below 50 m and as low as 2 m above the waves
* **Maximum speed:** High subsonic, 537 mph (864 km/h; 240 m/s; Mach 0.71)
* **Guidance System :** sea-skimming cruise monitored by radar altimeter / active radar terminal homing\
* **Launch Platform :** Multiple

## Variants

* **RGM-84A -** Surface-launched, fitted with a solid-fuel rocket booster that detaches when expended, to allow the missile's main turbojet to maintain flight.
* **AGM-84A** Air-launched, without the solid rocket booster.
* **UGM-84A** submarine-launched, fitted with a solid-fuel rocket booster and encapsulated in a container to enable submerged launch through a torpedo tube

## Service History

### New World War

During the Great Naval Battle of Japan, Japan used the submarine-launched versions (the **UGM-84A**) in order to attack the Gra Valkas Empire's fleet from beneath the waves. It has proven to be very effective and is able to sink destroyers, cruisers, battleships and aircraft carriers with a single shot. The Gra Valkas Empire's Fleet was able to score a lucky shot on one of the Harpoon missiles due to the density of the Anti-Air defense network provided by multiple warships. However, this was a fleeting victory at best. This tactic proved too inefficient and unreliable as the Great Fleet was unable to stop successive and multiple Harpoon missile strikes.

It is also revealed that the JSDF has upgraded the Harpoon with airborne targeting system to strike flying battleships like Pal Chimera

## Trivia

* Although it has superior firepower, a well-precision or lucky shot can destroy it in-flight. Otherwise it can only be stopped by modern surface-to-air missiles (SAMs) or advanced point-defense weapons such as the Phalanx CIWS.