in the Cenepa War of 1995 between Ecuador and Peru, where it was deployed mainly against Peruvian Mil Mi-17 and Mil Mi-18 helicopters. Although there are claims of some success, none of these have been verified. Replacement Production of the Blowpipe ended in 1993, with an official total of 34,382 missiles and approximately 3,000 launchers produced. These numbers include test rounds. In contrast to the claimed low-cost of the system, in 1994 the missile was US$55,570, and the aiming unit approximately $94,000. This makes it much more expensive than Stinger, which was roughly $35,000 at the same time. Blowpipe was replaced by the Javelin surface-to-air missile, which was of a generally similar design but with an improved performance and a semi-automatic guidance system (SACLOS) – the operator now controls the missile by keeping the target in his sight, and the aiming unit steers the missile to remain centred in the sight. A computer in the missile launcher calculates the difference between the current aim spot and the missile's location and sends commands to the missile via radio to bring it to an impact point. The basic Javelin missile body was retained in the upgraded Javelin S15, which replaced the original's radio command guidance system with a semi-automatic laser system. This uses a laser in the launcher to "paint" the target, and a seeker in the missile nose cone sees the reflected signal and homes in on it. This renders it largely immune to any possible jamming. S15 was better known as Starburst, although it was known by a variety of names in service. Starburst was used only briefly, before being replaced by Starstreak. Starstreak uses the same beam-riding concept as Starburst, but dramatically improves the missile and warhead. In Starstreak, the missile quickly accelerates to Mach 3.5, then separates to release three dart-like interceptors. Each dart is independently guided by riding the laser beam, thus improving the chances of a hit. The darts are also effective against armour. Operators Current operators Afghanistan Chilean Navy Chilean Air Force Ecuadorian Army – (220 launchers) Guatemala (82 launchers) Israeli Navy – (3 systems installed on Gal class submarines) Military of Malawi – (12 launchers) Malaysia Nigerian Army – (48 launchers) Royal Army of Oman Military of Qatar Royal Thai Air Force Royal Thai Army (about 20 launchers) 285 launchers in storage not in use replaced by Starstreak MANPADS British Army Royal Marines Former