An air-to-air missile is essentially a single-use drone
Yeah.
And barring some big advance, an air-to-air missile can't be any smaller than it is currently. It needs to carry enough explosive to damage the target aircraft, and it needs enough fuel to travel at supersonic speeds for a long enough distance to actually intercept the target.
And barring some big advance, an air-to-air missile can't be any smaller than it is currently. It needs to carry enough explosive to damage the target aircraft, and it needs enough fuel to travel at supersonic speeds for a long enough distance to actually intercept the target.