Gabriel has been successively updated to the current "Gabriel III"
missile, with twice the range and a substantially different external
appearance from the Gabriel I. It is available in both ship-launched
and air-launched versions, with the air-launched version known as the
Gabriel III "A/S" (Air to Surface).
Gabriel III A/S is powered by a stubby cruciform wings fitted to the
midsection and cruciform tailfins for guidance. It has boost-sustain
solid rocket motor and is fitted with a SAP warhead.
the Gabriel I used a semiactive radar homing seeker that required the
launch platform to keep the target illuminated by radar, the Gabriel
III has a dual-mode seeker that can be operated in "fire and forget" or
"fire and update" modes.
the "fire and forget" mode, the Gabriel III is guided by an INS into
the target area, with altitude maintained by a radar altimeter. It then
turns on its active radar seeker to lock onto and attack the target
after a search. In the "fire and update" mode, the missile can receive
course corrections from the launch aircraft while it is cruising
towards the target, allowing it to keep its radar seeker off until the
Israeli Gabriel III A/S is an advanced offshoot of the original Gabriel
ship-to-ship missile system. The original Gabriel was a small, canister
fired sea skimmer, designed to attack enemy vessels at wavetop level,
making its approach extremely hard to detect. This newer, air-launched
version is larger, with a range of 60+ km, and carries a high-explosive
warhead weighing 150 kg. The guidance system of the Gabriel III/AS
enables it to fly so low that it must be pre-set according to the
current size of the waves.