AT guided weapons mounted as anti ship missiles

[DarrenP2]

I have seen images of Hellfire and Brimstone being developed into Ship and air launched Anti ship missiles. I'm sure there are others.

[NARSES2]

For use against fast patrol craft I presume ?

A Carl Gustav did a lot of damage to an Argentine Corvette in the Falklands so the idea is sound, especially given the newer stuff would be guided

[DarrenP2]

Systems like Javelin and Gil Spike certainly would ruin a fast patrol boats day and cause some damage to a larger vessel

[Weaver]

One of the earliest systems for western patrol boats was the French SS-12, but the system could also fire SS-11 and did so for training purposes.

I see no reason why any ATGW shouldn't be mounted on a ship. One useful capability not available to conventional missiles would be precise targeting: assuming the firer could get close enough, the ATGW could be directed (for instance) at the target's bridge or a specific weapon or sensor.

A useful modification to the ATGWs would be an altimeter or height-hold system to avoid it crashing into the sea in rough conditions.

[DarrenP2]

on blowpipe we had a super elevation aiming line to allow us crest clearence on launch and on Javelin this was replaced by a button which did a similar thing. But a pitching ship might cause the guidance packages some problems, Also unrestricted backblast areas Carl Gustav is 30m

[alfavega]

The Wasp from HMS Plymouth as well as two other Wasps launched from Endurance fired AS-12 air-to-surface missiles at the submarine scoring hits.

https://en.wikipedia.org/wiki/ARA_Santa_Fe_%28S-21%29

[AS.12]

The Wasp from HMS Plymouth as well as two other Wasps launched from Endurance fired AS-12 air-to-surface missiles at the submarine scoring hits.

The AS.12s fired in that engagement weren't fitted with shaped-charge ATGM warheads but with the specific anti-shipping semi-armour-piercing OP3C blast-frag heads which were fused to detonate on the far side of steel plate.  Even then, two of them passed through the GFRP sail and tail-fin panels and exited without detonating, it was only one which struck the water a metre or so short of the hull that caused the damage that prevented diving; basically acted as a shallow depth-charge.
 
The OP3C head is considerably more powerful than anything deployed on any ATGM ( short of AGM-65 ), at 30 kg it's about three times the weight of that on AGM-114.  The same design was adopted for the successor Sea Skua.

[DarrenP2]

For use against fast patrol craft I presume ?

A Carl Gustav did a lot of damage to an Argentine Corvette in the Falklands so the idea is sound, especially given the newer stuff would be guided

I think the 2 66's and the gpmg turning the bridge into a sieve didn't help either. But i do wonder if the Booties had had something bigger like Milan or a Wombat.