Fabian Hinz Profile picture
Sep 20, 2020 9 tweets 2 min read Read on X
A few thoughts on the recent Reuters report mentioning that "Iran and North Korea have resumed cooperation on a long-range missile project, including the transfer of critical parts." 1/9 news.trust.org/item/202009201…
What project are they referring to? Well, we don't know for sure but there are a few potential options. 2/9
The first one is Iran's apparent role in the development of North Korea's RD-250 engine clone which powers the DPRK's Hwasong 15 ICBM. Unfortunately, apart from a single treasury designation, almost nothing is known about Iran's role in the project. 3/9 treasury.gov/press-center/p…
The second one could be potential cooperation in the development of larger solid-fuel systems. The DPRK has alluded to a solid-fuel ICBM and Iran has a pretty ambitious and sophisticated solid-fuel SLV program going on. 4/9
So cooperation would make sense. However, the shorter range solid-fuel systems we have seen in both countries show very different design philosophies. So it's unclear how much cooperation has actually been going on in this field. 5/9
Another possibility is that 'long range' in this context simply means existing longer range systems the two countries operate. Both Iran's Shahab 3/Ghadr and the Khorramshahr are based on North Korean systems. 6/9
Iran has equipped both of them with precision guidance and, unlike North Korea, seems to have made the Musudan/Khorramshahr work to some extent. So again, some cooperation would make sense. 7/9
One important thing to keep in mind is that missile cooperation between both countries is not a one-way street. While Iran's early missile program was almost entirely dependent on the DPRK, Iranians later claimed they surpassed North Korea in the field of liquid fuel. 8/9
Whether that is 100% true is another question, but it is important to note that cooperation with the DPRK could take many different forms (Iranian assistance, true co-development, sourcing of components, testing etc). The times when Iran simply bought entire systems are over. 9/9

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More from @fab_hinz

Mar 26
A few takeaways from two days examining satellite imagery of the Iranian strike campaign against US and regional military bases 1/9
1. Many Iranian strikes were quite precise, a stark contrast with the largely unsuccessful 2024 operations against Israeli airbases. Several factors could explain this. First, shorter-range ballistic missiles tend to be more precise than longer-range ones. 2/9 Image
Image
Second, Iranian drones can also be quite precise (see Aramco 2019). In 2024 and 2025, Iran struggled to get any drones through to Israel. With more reaching their targets in the Gulf, one should also expect more accurate impacts. 3/9
Read 10 tweets
Mar 25
Tried my hand at a very rough, initial geospatial battle damage assessment of Iranian missile and drone strikes against US and regional military bases. A few notes on caveats and methodology. 1/7 Image
As many have noted, commercial U.S. satellite providers have become far more restrictive over the course of the Iran war, severely limiting OSINT insights into the damage Iran has inflicted. However, a few alternative sources remain. 2/7
The first is Europe's Copernicus Sentinel-2, on which the majority of the data above is based. While resolution is very low at 10m per pixel, larger-scale damage can still be identified. 3/7 Image
Read 7 tweets
Mar 21
Iran attempted to strike Diego Garcia, located 3,800km from its shores, revealing it possesses intermediate-range missiles capable of reaching much, or even all, of Europe. Thread on what we know about Iran's long-range missile capabilities. 1/18
Iran has long maintained that it restricts its missile development to 2,000km, a limit set by the former Supreme Leader. However, it appears to have found multiple ways to circumvent this self-imposed limit, developing several systems that might have been used in the strike. 2/18
The first candidate, already mentioned by a few observers, is the Khorramshahr. The Khorramshahr was derived from the North Korean Musudan (right) which itself was derived from the Soviet R-27. 3/18 Image
Image
Read 18 tweets
Mar 12
There are major issues with this analysis and the claim that an Iranian Shahed costs $7,000 is highly questionable. Thread.
The first problematic assumption is the, widely reported, claim that the LUCAS is a copy of the Shahed 136. Well, the question is how do you define copy? In its basic concept and its aerodynamic layout, the LUCAS is certainly strongly inspired by the Shahed. Image
Image
But if you go deeper into the specs, you’ll see that the LUCAS is actually a smaller, lighter and shorter-range design than the Shahed 136 / Geran-2. This has significant implications for unit cost. Image
Read 15 tweets
Sep 21, 2025
Longer thread about what we know and what we don’t know about the strange rocket/missile launch observed in Iran on September 18. 1/15 Image
Image
The launch's pattern was highly unusual with several evenly-spaced glowing dots seen in the sky initially sparking speculation about a test of multiple re-entry vehicles. 2/15
However, angles and lighting can be deceptive. From another perspective, it’s clear that the dots are little plumes of smoke. This ‘stuttering’ pattern followed by what appears to be uneven combustion might indicate some sort of technical malfunction. 3/15
Read 16 tweets
Jun 25, 2025
One interesting fact about the MOP: The US appears to have tested it against a real underground facility just 30 kilometers south of the site of the world’s first nuclear weapons test. Thread from a recent OSINT side quest. 1/10 Image
The US military has been understandably reluctant to share detailed information about live tests of the MOP. However, several press releases do mention that MOP tests took place at White Sands Missile Range (WSMR) in New Mexico. 2/10 Image
WSMR is a vast range that also includes the Trinity Site, where the US detonated the ‘Gadget’ in 1945. While the area is huge, publicly available environmental impact studies contain detailed maps of its sub-sites and exhaustive information on how munitions testing affects bats and insects. 3/10Image
Image
Read 9 tweets

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