Skyflash is an advanced radar-guided air-to-air missile based on the US-designed AIM-7 Sparrow which was taken into service in 1977, but with improved guidance and fusing systems.
Sparrow, Sky Flash and Apside are semi-active missiles using the
launch aircrafts own radar to illuminate the target and provide
guidance. The major differences between AIM-7, Sky Flash and Aspide
lay in the choice of propulsion, warhead and guidance. While the
Sparrow series use Raytheon sourced receiver assemblies, Sky Flash
utilises a Marconi XJ521 monopulse system and control software and
Aspide uses a Selenia manufacturer radar receiver. Similarly the
current generation US Sparrow's use a Hercules rocket motor while
Sky Flash uses a combination of Rocketdyne or Aerojet systems, Aspide
utilises SNIA-Viscosa sourced solid motor.