missiles cost £105,000, which is comparable to the cost of the AGM-65 Maverick; the MoD quote only a gross book value of £175,000, which includes development costs as well as the purchase cost of the missile. Upgrading a single-mode missile to dual mode costs between £35,000 and £45,000 plus VAT, depending on quantities ordered. Brimstone 2 (SPEAR 2) In March 2010 Brimstone was selected as the basis for the RAF's requirement under the Selective Precision Effects At Range (SPEAR) Capability 2 Block 1 programme. The Demonstration and Manufacture contract increased the missile's performance "significantly", and converted the warhead and rocket motor to use insensitive munitions. Brimstone 2 has an improved seeker, a more modular design and improvements to airframe and software for "an overall increase in performance with improvements in range and engagement footprint", including a "more than 200% increase" in maximum range. A five-release test campaign in October 2013 culminated in a successful strike against a pickup truck travelling at in a cluttered road environment. Brimstone 2 was planned to enter service on the Tornado in November 2015, and was further updated with an insensitive munition compliant rocket motor and warhead in July 2016. It was successfully integrated onto the Tornado GR4 and has trialed on the Eurofighter Typhoon and AH-64E Apache. In February 2016, integration trials with the Tornado GR4s saw 11 missiles fired at "[various] structures, a very small fast-moving vehicle, and [targets at the] edge of the weapon system’s performance envelope." All in all 10, or 91%, of the 11 missiles were successful; the only missile that missed its target was involved in a very short-range shot in which the missile's semi-active laser homing and millimetric-Wave seekers did not have enough time to effectively acquire its target. In July 2016, MBDA further proposed a new variant of Brimstone 2 for the AH-64E Apache. It would specifically be for non-armoured targets in land and sea domains, but will not compromise Brimstone's anti-armour capability. It will have a launch aircraft cockpit-selectable trajectory, which will allow line-of-sight engagement (flat trajectory) and high and low missile flight profiles to avoid close-in obstacles; a cockpit-selectable capability that allows the pilot to determine the elevation and impact angle on the target to maximise weapon effect; and a new set of warhead modes, which includes delayed, airburst, impact and proximity fuzing. This weapon will be known as the Future Attack Helicopter Weapon (FAHW).