pilots occasionally releasing weapons outside of their operating parameters. This is now thought to have been Mirages (IAI Neshers) releasing external fuel tanks to improve their maneuverability for air combat. British aircraft received fighter control from warships in San Carlos Water, although its effectiveness was limited by their being stationed close to the islands, which severely limited the effectiveness of their radar. The differences in tactics and training between 800 Squadron and 801 Squadron have been a point of criticism, suggesting that the losses of several ships were preventable had Sea Harriers from Hermes been used more effectively. Both sides' aircraft were operating in adverse conditions. Argentine aircraft were forced to operate from the mainland because airfields on the Falklands were only suited for propeller-driven aircraft. The bombing of Port Stanley airport by a British Vulcan bomber was also a consideration in the Argentinians' decision to operate them from afar. As most Argentine aircraft lacked in-flight refuelling capability, they were forced to operate at the limit of their range. The Sea Harriers also had limited fuel reserves due to the tactical decision to station the British carriers out of Exocet missile range and the dispersal of the fleet. The result was that an Argentine aircraft only had five minutes over the islands to search for and attack an objective, while a Sea Harrier could stay near to 30 minutes waiting in the Argentine approach corridors and provide Combat Air Patrol coverage for up to an hour. The Sea Harriers were outnumbered by the available Argentinian aircraft, and were on occasion decoyed away by the activities of the Escuadrón Fénix or civilian jet aircraft used by the Argentine Air Force. They had to operate without a fleet airborne early warning and control (AEW&C) system that would have been available to a full NATO fleet in which the Royal Navy had expected to operate, which was a significant weakness in the operational environment. It is now known that British units based in Chile did provide early radar warning to the Task Force. Nonetheless, the lack of AEW&C cover resulted in air superiority as opposed to air supremacy; the Sea Harriers could not prevent Argentine attacks during day or night nor could they completely stop the daily C-130 Hercules transports' night flights to the islands. Operations in the 1990s The Sea Harrier saw action in war again when it was deployed in the