Shahed drones have a maximum range of 25000 km [bbc_1]. The distance from e.g. Isfahan to Tel-Aviv is ~1592 km [google]. Shaheds can reach Israrel from Iran.
As to them all being intercepted, in the 12-day war that seemed to be the plan, i.e. force Israel to waste interceptors on cheap drones [bbc_2]. That seems to have changed in the current conflict.
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[bbc_1] With a maximum range of 2,500km it could fly from Tehran to Athens.
[bbc_2] When Iran attacked Israel with hundreds of drones in 2024, the UK was reported to have used RAF fighter jets to shoot some down with missiles that are estimated to cost around £200,000 each.
Both exceprts from:
https://www.bbc.co.uk/news/resources/idt-b3a272f0-3e10-4f95-...
[google] https://www.google.co.uk/maps/dir/Isfahan,+Isfahan+Province,...
During WW2, the British used Spitfires to shoot down V1s. The V1s, pushed by a simple pulse jet, I presume are much faster than the drones. So some WW2 aircraft could be re-armed and used to shoot them down cheaply.
The British also employed a belt of radar-guided flak guns to shoot them down.
I don't hear any comparisons with the V1s, so my idea must be stupid, but I'm not seeing the flaw in it.
You need an edit on your first range (typo). 25Mm is amazing, nowhere is too far away (except the moon).
> As to them all being intercepted, in the 12-day war that seemed to be the plan
That's doubtful, these are different interceptors than the ballistic missile interceptors (AA missiles). That doesn't make sense as a strategy if they cannot hit any targets