Why did F-15C come into the picture? It's a dedicated air superiority fighter. Not a pound for air-to-ground. The heavier two-seat F-15E is the strike version.
Gross weight isn't a fixed figure, so it's best to stick to empty, MTOW and full internal fuel 'cause those are fixed figures.
Isn't it funny? The Typhoon has an FF of 0.31, the Rafale has an FF of 0.35, but the Typhoon practically matches the F-35A's FF in terms of basic range. However at the same time, the Rafale's range is "far too low", even though even the Su-30 with an FF of 0.35 exceeds the F-35A's range. The problem is the F-35, not the other jets, when it comes to range. The F-35 likely faces far too much drag due to the large IWBs, hence the lower range compared to its fuel fraction. Which is evident by the fact that the F-35 failed to meet its acceleration goals while also being G limited for sustained performance.
The Pentagon's future jet fighter is getting steadily worse.
www.wired.com
"The program announced an intention to change performance specifications for the F-35A, reducing turn performance from 5.3 to 4.6 sustained g’s and extending the time for acceleration from 0.8 Mach to 1.2 Mach by eight seconds," Gilmore's report stated. The F-35B and F-35C also had their turn rates and acceleration time eased. The B-model jet's max turn went from 5.0 to 4.5 g's and its acceleration time to Mach 1.2 was extended by 16 seconds. The F-35C lost 0.1 g off its turn spec and added a whopping 43 seconds to its acceleration.
I'm sure one can argue that the F-35 still accelerates faster than the F-16, but that's not the aircraft it's being compared with, nor is it the aircraft that it will eventually fight. So there's no point in getting hung up over the F-35's "amazing" FF, if other features make it irrelevant to the point it can't compare itself with jets designed 20 years before it.