Hi
Was a Naval version of the F15 ever considered? It is a very impressive airplane. Arguably better than Super Hornet?
No. It takes a lot more than folks realize to make a carrier fighter. You don’t just “navalize” an airplane. The entire structure of the airplane has to be redesigned for the landing and catapult stresses. An F-15 as built, would not survive a cat shot, nor would it survive a landing. The entire airframe, from front to back, has to be strengthened, along with the landing gear, to handle those stresses.
The fixed wing F-14 design study (303F, directed by Navair as a cost cutting option) looked a lot like the F-15: and it was slower, with a higher landing speed, and reduced payload, compared with the variable geometry F-14.
At the time both were built, the F-14 was the better fighter. Better radar, longer range missiles, with multishot capability, and great slow speed handling.
A navalized F-15 was inferior to the F-14.
What you’re talking about, then, is a new airplane. And the budget wasn’t there. The Super Hornet was low risk, low cost. That was the promise. The cost of development was, in fact, modest, in the case of the Super Hornet. About $4.8 Billion. About a third of the cost of the F-15EX development program, another program that modified an existing fighter, which was over $12 billion.
A new airplane, even one based on the F-15, would not have met the Navy’s cost constraints.