Do you have good estimates of the diameter and length of the Big Eskimo payload cannister?
I did some very rough calculations off an angled screen-shot that put it at 1.5m long. Using your 570mm diameter that makes it around 0.4 cubic metres or around 600 kg of TNT. Maybe 500 kg taking into account the internal motor tube?
The Liawa al-Islam video shows a primary burn time of 1.6-1.8 seconds based on audio and video. Audio is ~2.6 seconds long but the last part is from when the missile has travelled hundreds of metres away so take off probable sound travel time and you get 1.6-1.8 seconds. The video shows a rapid drop in brightness at 1.8 seconds, however the motor keeps burning (or glowing) for at least 12 seconds.
The chemical variant has different physical dimension to the HE variant and it looks like the motor may be from a standard 122mm Grad - which has a 1.67 second burn time.
The Amer Mosa video has a burn time of 2.3 seconds based on video and audio analysis. It also has low acceleration. It seems unlikely to be either the HE (big and small) or chemical.
Do you have good estimates of the diameter and length of the Big Eskimo payload cannister?
ОтветитьУдалитьI did some very rough calculations off an angled screen-shot that put it at 1.5m long. Using your 570mm diameter that makes it around 0.4 cubic metres or around 600 kg of TNT. Maybe 500 kg taking into account the internal motor tube?
I would have counted 1.3 m, but it is very approximately. 1.5 meters - the correct measurement.
УдалитьQuite possibly half a ton of TNT.
The center of gravity is well shown.
The motor could from be an Iranian Fadjr 3 (possibly a Fadjr 5)
Удалитьhttp://www.diomil.ir/pdf/Section3.pdf
Fadjr 3
УдалитьAverage time of the motor operation - 4s. )
Maybe I'm wrong - now the new fuel a lot of smoke?
• http://www.youtube.com/watch?v=F5zCzPzCiCE
Liwa A-Islam and "Amer Mosa" Videos.
ОтветитьУдалитьThe Liawa al-Islam video shows a primary burn time of 1.6-1.8 seconds based on audio and video. Audio is ~2.6 seconds long but the last part is from when the missile has travelled hundreds of metres away so take off probable sound travel time and you get 1.6-1.8 seconds. The video shows a rapid drop in brightness at 1.8 seconds, however the motor keeps burning (or glowing) for at least 12 seconds.
The chemical variant has different physical dimension to the HE variant and it looks like the motor may be from a standard 122mm Grad - which has a 1.67 second burn time.
The Amer Mosa video has a burn time of 2.3 seconds based on video and audio analysis. It also has low acceleration. It seems unlikely to be either the HE (big and small) or chemical.