coalition ally can contribute. Cameron named the Brimstone precision missile, which he said minimized risk of civilian casualties, as one only Britain could contribute. The missiles can target convoys as well as fast moving, fleeting targets that were previously harder to strike, according to IHS Jane's senior weapons analyst Ben Goodlad. The Brimstone, which travels at supersonic speed, is a 1.8-meter missile weighing just under 50 kg. Advanced radar equipment enables it to guides itself to the target, so pilots do n't need to maneuver to release it. IHS Jane's estimates each missile costs around $240,000. Brimstone missiles are compatible with the UK's Tornado GR4 aircraft. The aircraft were used by British troops for relief missions in northern Iraq just over a month ago. Six of these are ready for deployment at the UK's RAF base in Cyprus. Flying the Tornadoes costs around $57,000 per hour, according to information released in a parliamentary debate about Libya in 2011. From the Cyprus base, the aircraft could reach Iraq in just over an hour. Goodlad said the RAF also has Tornado's Storm Shadow cruise missiles, which cost $1.3 million each, and submarine-launched Tomahawk cruise missiles. These can be used to target areas that ca n't be accessed by planes, for example due to defenses, and cost round $1.5 million each. U.S. forces have been using Tomahawk missiles for