Iranian Navy, Land Launched Surface to Air, Qader (Capable) Missile Test, 02 Jan 2012
Failure Analysis Based on Supplied Video
Analysis of the video frames for the Iranian Navy land launched surface to air, Qader (Capable) missile test, conducted on 02 Jan 2012 during Velayat-90 war games on the Sea of Oman near the Strait of Hormuz, appears to indicate a failure of the missile motor while in flight. Resulting in flight instability and finally the missile's apparent destruction. For better clarity, each video frame image (IRIB News, and Reuters, 2012) can be downloaded at full size (1900x1070).
The frame at left is . The frame at right 
The frame at left is . The frame at right .
In this frame (left) the entire vehicle is being propelled by the aft booster, the burning of the solid fuel appearing to be nominal. The first indications of an anomaly appearing just moments later (right) as the solid motor in the primary vehicle initiates with the aft booster still attached to the vehicle. Visable as an abrupt change in the spatial nature of the plume (yellow circle), and apparent reduction in exhaust emission and thermal signature. The aft booster assembly now preventing the free flow of hot gases (red circle) from the solid motor nozzle in the primary vehicle, resulting in grossly non-symmetric emissions.
At left, can be seen the first indications of a burn through of the primary vehicle's solid motor fuel casing with the sudden appearance of a small bright light source (red) near the lower portion of the vehicle. The aft booster still attached as can be seen from the exhaust plume with no object yet ejected from the primary vehicle. In the next frame (right), one can clearly see the missile performing an abrupt angular change in its flight path along with a sudden increase in the light intensity emanating from the aft of the vehicle. This being a strong indicator that the vehicle experienced a sudden lateral force or torque at a location and vector direction other than at the center of gravity and or rotationally about the vehicles cross section. The sudden increase of light near the rear of the vehicle suggesting a rapid and sudden increase in the chemical reaction rate of the solid fuel. Leading one to believe that the solid fuel core and casing has ruptured, with hot gasses exiting from areas other than intended, the outer portions of the casing partially consumed in flames.
In this frame (left) the consumed aft booster has just snaps off the back of the primary vehicle, as the missile abruptly vectors upwards, accelerating due to the increased burn rate produced by the now corrupted primary solid fuel casing. The charred aft booster (right, orange circle) continuing on the missiles principle flight path. The side and aft section of the missile solid fuel casing burning in a non-symmetric manner, (red circle) further accelerating and vectoring the missile in an errant manner.
In this frame (left) one sees the complete corruption of the solid fuel motor casing with the vehicle consumed in flames, no longer acceleraing rapidly (red circle). The burned off aft booster (right, orange circle) continuing to progress along the missile's original flight path.
Here the missile has left the frame (left), but clearly visible is a plume of black smoke (yellow ellipse). An indication that something other than the solid fuel was burning, more than like, the vehicle itself. The frame at right  ...
Click here to downland a video (5.17 MB) of the Iranian Navy missile test, produced by IRIB News and supplied by Reuters.
[1 - 14] News video, captured image, adapted from "Iran test-fires missiles in Gulf exercise", IRIB News, and Reuters, Ramin Mostafavi al., Tehran, Mon 02 Jan 2012, 11:04am EST, (Additional reporting by Hossein Jaseb in Tehran and Jeffrey Heller in Jerusalem; Editing by Mark Trevelyan), retrieved 03 Jan 2012; http://www.reuters.com/article/2012/01/02/us-iran-missile-idUSTRE80007E20120102, (2011), adaptations by Park McGraw.
 News video, "Iran test-fires missiles in Gulf exercise", IRIB News, and Reuters, Ramin Mostafavi al., Tehran, Mon 02 Jan 2012, 11:04am EST, (Additional reporting by Hossein Jaseb in Tehran and Jeffrey Heller in Jerusalem; Editing by Mark Trevelyan), retrieved 03 Jan 2012; http://www.reuters.com/article/2012/01/02/us-iran-missile-idUSTRE80007E20120102