The Ikarus looks like they tried to turn a pylon racer into a fighter, fast & manoeuvrable but not so good on the field of view side of things.
The P-36, strangely, got me thinking about a navalised version, a P-36N (or whatever the USN would have numbered it as) with folding wings, stronger landing gear & a hook.
Like the best piston-engined naval aircraft it's a radial &, like the later P-40, it's solidly constructed, so it could cope with the stresses of carrier operations.