QUOTE (Dumori @ May 3 2010, 09:33 PM)

True but GPS wouldn't get you tarjectorys doging radar or such would it now would GPS find you the target.
i think the trick would be to terrain skim until close, then basically sprint and hope that their reaction time long.
note how on the video, when close to the ships, the missile splits, going from jet to rocket propelled to cover the last distance at a speed the defense systems on the target cant react to.
basically they where anti ship missiles carried by a cruise missile.
the other two targets where static, so one would be attacking a area.
in either case however, what they can do, and this is basically what the exocet do, so to use passive guidance until close to the target, then switch to active sensors and head for the nearest target matching some kind of profile. By the time the sensor lock warning goes of, the missile will be heading for them at max speed.
heck, in the absence of gps, one can rig a crude version of it using two radio beacons in known locations, so that one can triangulate a basic location. Iirc, this was used as far back as WW2 for US bombers to find targets. And is used today for non-gps aircraft guidance.
also, checking some numbers, the improve heimdall seems to have the basic specs of a anti-ship missile