Similar in many respects to the American Redeye surface-to-air missile system, the SA-7 Grail has proven most accurate against low-flying aircraft and helicopters with the only major drawback being that the missile, once fired, must be trained in on a consistent heat source to score a kill. The weapon maintains a hit percentage of roughly 90%, though the HE (High Explosive) warhead is said to not accomplish much in the way of overall damage - as proven in some instances where damaged Israeli fighters were able to return to friendly airbases after receiving direct hits from Grail ground detachments during the Arab-Israeli War of 1973.
Nevertheless, the system can still be considered deadly in the event that critical systems are destroyed or damaged - in an aircraft that could be the cockpit, avionics or engine components and in rotary aircraft, that could be the cockpit, the tail rotor assembly or main rotor assembly. In any event, the use of the SA-7 Grail is even the most basically-trained of hands should still be regarded as a potential enemy threat to aircraft.
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