| | Horizon: The Common New Generation Frigate |
 | | The Type 42 destroyers were at a very early stage of development, as was their sister ships the Type 22 frigates (to replace the Leander class (Type 12M)), and so a large gap was threatening to open up in the Royal Navy's modern fleet escort surface vessels. |
 | | The Type 22 frigates are among the most successful warships built for the Royal Navy since 1945, but there continued evolution has led to a ship that is probably closer to a cruiser or destroyer (in terms of capability and cost) than a simple frigate, particularly in their weapons fit. |
 | | The Type 23 was originally envisaged to act as a platform for a towed sonar array, carry light missile system against air attack and have facilities to land and refuel helicopters, although it would not carry a hangar. |
| www.historyofwar.org /articles/weapons_horizonlong.html (8349 words) |