the Type 903 in bearing; the missile is fired at high elevation and then depressed in order to strike the vessel with a steep dive, without arming the fuse. Electrical power when the missile was in flight was provided by a flux switching alternator with a six tooth rotor. "The 1.5 kVA Seaslug generator ran at 24,000 rev/min with a frequency of 2,400 Hz." Service performance Seaslug was a high-performance weapon in the 1960s, with a single-shot kill probability of 92%, although other sources give lower kill probabilities: 75% for the Mk 1 and 65% for the Mk 2. The first four ships of the County-class (Batch 1) operated the Seaslug Mk 1, while the final four (Batch 2) were fitted with the ADAWS command and control system which enabled them to carry the more capable Mk 2 version. A proposal to refit the Batch 1 ships with ADAWS was dropped in 1968. During the Falklands War Seaslug was only launched once against an aircraft target, by , and without success. On 21 May 1982 in Falkland Sound, the Antrim which had already had an unexploded 1,000 lb bomb pass through the Seaslug magazine, fired a single missile (some sources say two) at one of a second wave of attacking IAI Dagger fighters. It was unguided because the aircraft was too low to be acquired; the launch was intended to deter the pilot and to remove the exposed missile from the ship because it posed a fire hazard. The first combat use in the surface-to-surface role was during a shore bombardment on 26 May, when fired Seaslugs at Port Stanley Airport claiming the destruction of a number of helicopters and a radar installation. A total of eight Seaslug Mk 2 missiles were launched in theatre by the two ships armed with them, including two missiles jettisoned by Glamorgan after she was hit by a land-launched Exocet missile on 12 June. Also during 1982, the Mk2 was used as a trials target for Seadart, but there were reliability problems with both systems. The last firing of the Seaslug Mk 1 was in December 1981 by , the final GWS1 (or Batch 1) ship in active service. was converted to a training ship, and had her Seaslug systems removed, freeing up large spaces for classrooms and was completed in June 1986. Fife and the remaining GWS2 ships were sold to Chile between