To manufacture a solid fuel missile there are several layers of facilities you need to prepare the fuel including large mixers. It’s possible Iran has been able to somehow do this either underground or in some hidden sites that are only activated during emergencies. However the rate of production would be low naturally.
Rubio once said at the start of the war that Iran could make 100 missiles a month while they made 10 interceptors a year.
So, assuming during peace time Iran could make 100 finished missiles a month (a respectable number compared to US/Russia/Ukraine), during war time that number probably drops to 25 at best maybe 50, at worst maybe 10 missiles. Issue is Iran is firing about 5-10 missiles a day during this current round of conflict. So it’s using 150-300 missiles at the current run rate of this conflict continues. So Iran would need 3000 miles to cover itself for next 12 months of low intensity or as many as 10,000 missiles if it goes back to firing 30-40 missiles a day.
Now in case of liquid fuel the problem is much easier since it’s simple mixing of fuels and the real difficulty is producing engines and warhead and subsystems etc.
The million dollar question is how many of its missile production facilities survived the 12 day war and opening salvo of the current war. And how much of it is moved underground or was underground to start?
