2 seaters rafale M was studied but not purchased by french navy. Easy to made.
SH18 had not shown a STOBAR capacity with 2 Harpoons. And Rafale can carry Exocet under each wings.
Harpoon range > actual Exocet AM39 with powder engine. Maybe a derivative of the exocet block 3 with turbojet engine and > 180km range....
More powerfull F414 : Yes, but the bird is far too heavy for a smaller load. And M88 may also have more thrust (some unverified source said Qatar Rafale are powerd with 8,3 T M88 .....)
Engine communality : ??? commonality with IAF M88. And TEBDF engine is not choosen if I remember well.
Better integration? Maybe. But all platforms are NATO compatible.
And you forget a weapon not integrated on SH18 : Meteor.
While my own vote would be for the Rafale M, let me put my points across:
- Harpoons are already part of the IAF and IN's stocks (bought for the Jaguar IM fleet, replacing obsolete Sea Eagle AShMs). So that would make it a little easier to use existing stocks of the Harpoon with some additional orders, since the MiG-29K's Kh-31A AShMs are incompatible with both Super Hornet or Rafale.
- F-414 is coming in a big way, thanks to the Tejas Mk2 (of which the IAF ACM just confirmed this morning a commitment of 6 squadrons). Plus the first 40 AMCA are likely to be powered by the F-414 as well as the prototypes and first batch of TEDBF if it has to enter service by 2035-2040. The new 110 kN JV engine will need a lot of trials before it will be on production fighters.
- So the F-414 commonality with the Super Hornet's engines is a plus, however it is offset by the fact that the M-88-3 is also in IAF service and a MRO is being set up by Safran that will likely also take on MRO activities for the M-88s.
- Regarding Datalink commonality between MH-60R ASW helicopters, P-8I and Super Hornet, does the IN use the US developed datalinks for the P-8I and MH-60R? As far as I recall, the P-8I had Indian developed datalink since there were export restrictions in place. Some other posters could confirm this.
- While the Meteor is truly a big incentive to go for the Rafale, the AIM-120D wouldn't be too bad for the IN either
But in the long run, a small orphan fleet of 26 Super Hornets doesn't make sense to me. Rafale Ms have the benefit of having the IAF's larger Rafale fleet to enable more efficient sustainment and MRO operations. Shared stocks of weapons for the IN and IAF's Rafales would also add to cost-effectiveness versus buying other weapons that would not be compatible with anything in the IAF.