Considering that Jeffery Lewis identified Fattah-1 used even in TP2 let alone in war where it was seen many times, I see no reason to speculate that its not mass produced. Why would not IRGCASF produce its most prized weapon ? Why was Fattah-2 abandoned, my guess would be as good as yours but if I have to think, I would say it was Hajizadeh's brainchild and it died with him. Mousavi may have his own ideas just Hajizadeh had his own ones from Moghaddam. Mousavi is kinda extremely quiet type as well compared to Media Loving Hajizadeh.
Also Sejil-II is actual designation of the missile, the Sejil-I and Ashura were its prototypes perhaps. Its produced in good numbers, used in war and IMO (I have no proof) its disfavored for further production if Ghaem series SLV => IRBM/ICBM route is actually taken. Similarly, K-4 as cluster munitioned PBV turned out to the real product of K-1,2 and K-3(MaRVed) protoypes. Logical.
I would disagree because Tehrani Moghaddam's work was around heavy solid fuel engines that birthed Sejil-II, Rafay solid fuel engines in Zoljaneh and Ghaem SLVs. While Sleek precision MaRVs we see in bulk driven from Fateh family today is work of Hajizadeh including Fattah-1, KS, Haj Qsem family and Qasim Basir (most advanced) of the group. Fateh series was born under Moghaddam but Hajizadeh cultivated it to extremes. Skip Glide/Quasi Ballistics, Hypersonic, Endo/Exo MaRVs, PBV, Terminal guidance is all work of Hajizadeh.
Ironically Shahab family was from Moghaddam times. In its purist form, Shahab-3C was last of the series that died with or around Moghaddam. Today we do have two MRBM descendants in form of Ghadr-F with an Exo+Endo atmospheric MaRV and Emad/Etemad with a CPRA ECM patch and MaRV. Another speculated member of the family is TELed Qassed SLV with a solid kickoffstage.
Disagred, based upon dias which point to engine origin, Iranian missiles/SLVs have 5 families. The list only includes the missile we know have been produced and are seen in high numbers in excersizes or used in actual battle.
Ashura (Prototype) => Sejil-I (Prototype) => Sejil-II (Produced) => Zoljaneh SLV (Produced) => Ghaem SLV (Produced) => Ghaem 105 accused ICBM ??
R-27/Musudan => K-1/2 (Prototype) => K-3 MaRV (Produced ?) => K-4 PBV (Produced)
Shahab 3C (Retired) => Ghadr-F Exo+Endo atmospheric MaRV (Produced) => Qassed SLV.
Shahab 3C (Retired) => Emad MarV (Produced) => Etemad with CPRA ECM patch and MaRV (Produced)
Shahab-2 (Retired) => Qiam 1/2 MaRV (Produced/Retired ?)
Fateh series => Fateh 313 => Persian Gulf AShBM, FatehMobin => Dezful => Raad-500 => Zolfaghar/Zolfaghar Basir AShBM => Haj Qasem (All produced)
Kheybar Shikan 1 => Kheybar Shikan 2 => Fattah Hyperonic MaRV => Qasim Basir EO/IR MaRV (All produced)
Actually, reality is very different if you count the engine types.
1) They have one for KS/Fattah family
2) One for Fateh driven family
3) Rafay for Sejil and its driven SLVs
4) One for K-3/4
5) One for Emad/Ghadr-F/Etemad, Qased SLV
6) Then we have separate MaRVs/PBVs propulsions and SLV Kick offstages (Salman, Vahab etc).
Like fighter jet engines, missile engines are not numerous either. If one model is performing fine with required ISP, why would they need to waste money of changing it ? I would rather have them strictly stick to just 2-3 types.
Considering the missile program is the deterent and main offensive weapon of IRI in conflicts or wars, I would not call it stagnation. IRGCASF had other areas to focus on as well such as new bases, excavating storage units, underground bases. Yes IRGCASF and ISA both failed in Soleimani LEO constellation plan (as of yet), they have not produced reliable ALBMs or actual supersonic LACMs but considering that its a sanctioned group, the progress they made and war they fought solely points to them being a sound force. Compare them to corrupt clowns IRIAF had for last 25 years for example.
If you are strictly asking for where the money went then Khamenei gave 500+ Billion USD to Arab militias to fight Israel. God knows what did he want but there goes the budget.
