Does this kind of sort out your difficulties? It may look like a lot of variety, but try imagining the Air services of both Army, Navy and Air Force together for eg. The United States, France or the UK. You would get a similar image.
Not really. A combined air arm would also mean common procurement. So for instance your light/medium transports, both naval and ground based, would be one model of the MH-60s or another. Not two different helicopters.
As for the F-18 and the F-35, the only reason to have them is if you have a carrier, and judging by the lack of support craft, you don't.
You simply can't keep a squadron carrier capable without direct access to a carrier. Sure you can do land based training, but it can only take you so long.
As for the fighters, as I said, the Hi-Low mix works and I get that you're in the middle of transitioning from one type to another, however, why keep the Tornado when you're getting the F-35? As it says in its name it's a strike fighter, just like the Tornado.
Plus, since all the Tornado operators are beginning to disband their fleets, maintenance costs are going to skyrocket as parts begins to get scarce.
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