A next-generation precision guided bomb that can hit targets 24 hours a day and in all-weathers has entered service with the Royal Navy and Royal Air Force as part of a GBP400M programme.

The weapon, known as Paveway IV will be fitted to the Harrier GR9s, Tornado GR4s, Typhoon and ultimately the Joint Strike Fighter (JSF).

The highly sophisticated weapon, provided by Raytheon Systems can be guided on to a target through use of Global Positioning System satellite technology or through laser guidance.

Pilots can programme the weapon from the cockpit from the ground for pre-planned missions or while the aircraft is in flight using data provided by the aircraft's on-board sensors. The Paveway IV can also be reprogrammed mid-flight should targets alter or to reflect changes to conditions on the ground.

Minister for Defence Equipment and Support, Quentin Davies, said: "Paveway IV is providing our Armed Forces with the very best technology for operations with its all-weather, day and night precision bombing capability. The Paveway IV's sophisticated guidance system and sensors will give new levels of flexibility to our pilots allowing them to switch targets mid-flight and rapidly respond to changing factors on the ground. This is a highly sophisticated weapon which will be used across our fast jet fleet from Harriers, Tornados to Typhoons."

The Defence Equipment and Support project team leader Captain Howard Holdsworth, Royal Navy said: "Paveway IV will provide those at the front line with a hugely flexible and very welcome capability. This is the culmination of a tremendous amount of hard work on the part of the stakeholder community, both in the MoD and Industry. We can be justifiably proud of our achievements; Paveway IV is a very capable weapon system indeed."