November 20, 2015
Basic Dimension // November 20, 2015 at 1:00 pm //
Range differences between warhead 9N314 and 9N314M
The main problem of warheads is overshoot of small fighter aircraft by too early or too late detonation.
Fighter aircraft are fast and so missiles must be much faster. The maximum speed of a BUK-missile is Mach 3 (1000 m/s) on a very short distance. But this speed also is the enemy of precision. And a BUK cannot slow down near the target.
Hence, the predecessor of A-A invented a means of firing backwards from the rear part of the warhead: He divided the warhead into two parts. In the back part he placed early exploding bowties and fillers to acquire an angle of more than 90 degrees in case of late detonation. And at front of the warhead he placed cubes, bowties and fillers which fired forwards for a sharper angle by early detonation.
Antidyatel // January 4, 2016 at 3:54 am //
Conclusion: The overall strategy of a 9N314M is to broaden the range of the blast compared to 9N314. The range had to be broadened since the reach of the frac speed vector itself is extremely short and the point of detonation is almost on the fighter jet.
Since the detonation point is on minimal distance from the jet, the sum vector needs an angle of 90 degrees or more to fire backwards. That's the sophisticated strategy of warhead 9N314M. And look at the DSB model: bowties and fillers are firing backwards:
With an exhausted missile very far from Snizhne and a big passenger aircraft, warhead 9N314M definitely was not needed. So, if the Russians deliberately shot down MH17 from S. they never would have used 9N314M but 9N314.
On the other hand, if someone intentionally shot down MH17 from Zaroshchenske he could have used 9N314M, for it was a very short distance with a big risk of overshoot. But again with a very big passenger plane even a 9N314 would not miss:
The 9N314M warhead has a couple of characteristics which determine the damage pattern on the warhead.
- the shape of the warhead. The warhead is barrelshaped. This leads to a certain minimum ejection angle and maximum ejection angle.
- the location of the detonator. This determines the ejection angle. If the detonator is located in the front of the warhead, fragments will be pushed out more backwards then when using a detonator located in the back or middle
- preformed fragments. The 9N413M warhead has preformed fragments. This means each fragment has a distinct shape and is put loose into the warhead in a pattern. The alternative is pre-ready fragments. In this situation the fragments are not loose but are fixed to eachother. The force of the explosion creates random shaped fragments.
- weight of the fragments. Heavy fragments have higher speed of the explosion due to the kinetic energy. Higher speed of the fragment combined with the speed of the missile mean a different distribution of fragments compared to light fragments.
- number of light and heavy fragments
(Enter: cyclotol, 33, 37, cylindrical. AFAIK Buk warhead uses a TNT/RDX mix)
The Launch Spot
Basic Dimension // January 4, 2016 at 12:58 pm //
Thanks Sotilaspassi for your correction:
According to these data, 9M38 missile has great energy capabilities than 9M38M1. This is very important nuance.
This is why the DSB lingers with the exact type of missile. Because all of the options are bad.
Rocket 9M38M1 due to a lower speed and larger the angle of inclination at the same distance in the problem of the search starting position shows in the direction of Ukraine. The warhead 9N314 (without bow-tie) also mix the starting point in the direction of Ukraine in calculation.
Option, which is suitable to accuse pro-Russian forces in the downing MH17 – is a chimera, a missile 9M38 with a warhead 9N314M1.
However, the manufacturer (AA) states that such an option was never produced. 9M38 missiles are always equipped with a warhead 9N314, and 9M38M1 rocket always with warhead 9N314M1.
And further, in the Russian missile 9M38 on the application has been removed from service, but still there in the Ukraine.