My very initial thoughts on the huge liquid fuel Missile displayed by North Korea. My estimates are likely within a plus/minus 10%, and loaded with some basic engineering assumptions. Much remains to be learned.... 1/n

The TEL has 11 axels, two more than Hwasong-15 TEL which is about 22m. These large vehicles are designed to be modular, so two additional axels, roughly 1.8 -2.0 m in length, were likely inserted, giving a new length of 25-26 m. The missile is about the same, 25-26 m long. 2/n
Diameter is more difficult to estimate from photos, but seems to be between 2.5 and 2.9 m. Resulting in a missile lift-off mass of 100-150 tonnes. Let’s take the middle values, 2.7m diameter and mass of ~125 tonnes. 3/n
Further assume the missile’s first stage is powered cluster of four RD-250 type chambers/engines for total sea level thrust of ~160 tonnes. This is twice that of the Hwasong-15. Lift off acceleration is then about 1.3 Gs, or thereabouts. Reasonably typical value for ICBMs. 4/n
If these estimates are close to reality, the missile, in principle, could deliver 2000 -3500 kg to any point on CONUS. This is more capable than Soviet R-16 or R-26 ICBMs that we’re never deployed. These systems had a first stage diameter of 2.7m, tho 2nd stage was smaller 5/n
Further, the old Soviet design had slightly less powerful, four chamber predecessor engines to the RD-250. 6/n
If this new missile uses auxiliary steering engine on F/S the throw weight grows. But, big question centers on S/S propulsion. Perhaps a Modified single chamber RD-250 with nozzle extensions? Performance estimates will vary significantly based on S/S assumptions. End.

More from World

Good question: what proofs has BDA provided of his authenticity?

Let's go through some of them.


- BDA predicted the Saudis would assassinate Suleimani. They did.
- He said the dog that got Badghadi's arm deserved a Medal Of Honor. The next day the President posted a joke image showing him giving the dog a MoH.

- He said one of his ops in Syria would severely disrupt a CIA drug trafficking operation. This was proved true within a few days:
https://t.co/Hranupwcxj
- He sent gold to Brazil to help pay for an anti-trafficking operation there. That op became public soon afterwards.

- On May 31 this year, he predicted the President would be giving a speech the next day. June 1, the President gives a surprise address at the Rose Garden.
- He predicted the US would be making diplomatic moves on Greenland. True.

- He said the US would be pulling all troops out of Afghanistan. This was confirmed within the month.
- He claimed earthquakes would be hitting Iran's nuclear facilities in December. Yep.
- There were FOUR facilities hit, not the three made public. Also true.

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https://t.co/FBfXhUrH5d


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