It has been awhile since I last watched BEL. But yeah... the jettissoning of the nosecone and a delay then the shotgun blast of pellets is another ACME moment.
Behind the nosecone would be the antenna for the guidance system.
In a proximity detonated warhead (which is what they were trying to show) when the missile is close enough to the aircraft the missile will detonate. The warhead will send out a shower of fragments in an expanding cone ahead of the missile (due to the momentum of the missile).
Another reason why this fraked up scene is stupid is because the missile IS proximity detonated so why the hell did the missile actually scrap past the plane without exploding when they were (for lack of a better word) Dueling with it?
In FotI, you see the missiles arcing up towards the plane, guiding on the plane by the ground radar bouncing a signal off the plane and the missile closing on the echo(Semi Active Radar Homing or SARH). The missile will continuously guide towards the echo (the plane's location). If it misses and overshoots the missile will lose lock and just go stupid (ballistic) and often self destruct. They DO NOT turn back around and keep hunting after the plane like in the moronic BEL.
Also as you were asking about, FotI shows the missile detonations as big puffs of fire. That is more realistic. The fragmentation warheads are too fast for the eye to see. All you see is the detonation of the missile, and the results if it hits.
Here is an excellent video showing the SA-2 (the missiles from Flight of the Intruder)
Each missile is about the size of a telephone pole.
Note how the main booster moter burns out in a couple of seconds but the sustainer motor keeps burning with less smoke.
Also note how the missiles (they fire two) keep altering their course to track in on the maneuvering target. But they never loop back around or re-attack, it is just alterations to the flight as they continue to arc towards the target intercept.
Also not the detonation on target and parts of the target spiraling away towards the ground after intercept followed by the second missile detonating at the very end.
http://www.youtube.com/watch?v=KHfOF8hF8mA
Another part of what you were asking about the SA-2's shown in Flight... HOw they only seemed to buffet the plane with the shockwave.
Ideally, the missile will home in on and detonate in a position so that the plane is in the cone of the blast fragmentation pattern. Remember though that Grafton was maneuvering and pulling hard G's to force the missile to overshoot.
If the missile is close enough but just out of the cone, and the missile is going to overshoot the guidance logic on the missile will detonate anyway in a last ditch effort to kill the plane. This means the missile is close enough for the blast to buffet the plane but because of the missiles momentum, the fragments travel past and behind the plane.
If the missile is just sitting still and detonates, the fragments will go every which way in a sphere, but because a missile is moving at near mach 2 or higher, those fragments also have that same mach 2 or higher momentum on detonating. so as they explode outwards, they are also still travelling in the same direction as the missile just prior to exploding. Thats why the fragments form a conical pattern.
Here is my ship firing her SAMs. The SM-2ER.
http://www.youtube.com/watch?v=DGjvN3Uf4-c
4.9 Mach and a skin to skin kill at over 100 miles.
Skin to skin meaning direct impact...though the missile is fused for proximity.
The electronic hornets nest buzzing you hear and the frequent horizontal static you see is a result of an unshielded camera being screwed with by our powerful radars.
I joined the Navy to see the world, only to discover the world is 2/3 water!
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