
I'm not talking about air-to-ground, but air-to-air. I'm looking at a concept that the ranges you see on the ground for ground weapons apply in the air literally. That means that dogfights in the air would be at WWII iron sights distances because whatever makes them that short for ground combat (armor & mobility & ECM) is across the board. I'm also assuming that the weapons used on tanks and Mechs are the same on Aerospace Fighters.
But, ASFs are moving at faster speeds that you can't resolve a dogfight on a standard 2x1 ground map layout. They'd be in and off and on with life. The real maneuver has to be at a larger scale. But the weapons fire has to be done in a snap-shot on a representative ground map.
The only way to go long would be to incorporate artillery. Air-to-air artillery.
Okay, I'm going to point this out if nobody else does...
Aircraft are different from ground craft. They're also different from seaborne vessels. If you put the GAU-8 on a track, you might have one badass AAA platform, but against the front glacis of a tank? you're wasting your ammo on nothing. it kills tanks, in the real world, because top armor on tanks is thin enough that a 30-37mm can actually hurt it. Against the front glacis of even a last generation tank, you might as well call it a shot-peen, because that's all it's going to do.
This is the same reason you don't see Hellfires with ground mounts. Aircraft, have specific vulnerabilities that something anchored to the dirt doesn't have, they also have specific issues that something anchored to the dirt doesn't have to deal with.
Among other things, with an aircraft, your bullets aren't having to fight with gravity nearly as much-your horizon is longer and so is your useful range (that is, the range at which a burst from,say, a .50 Cal can retain useful velocity-it's a lot further from an F-86 than it is from the turret ring of a HMMV.)
This is also true against other aircraft. It's
physically possible to mount a 75mm gun in the nose of a B-25 for attacking ships, or tanks, or whatever, but it's not
a great idea to try using it in Air to Air combat, and you don't want to see what trying to mount something that kicks that hard and suddenly in something like an F-101 Voodoo or F-22 or somesuch.
You're more likely to kill a tank with a GAU-8 than a 75mm, when firing it from an aircraft (hence, why they built the A-10 the way they did, instead of just shoving a 105mm gun in the nose, and kicking Sabot.)
Part of this (a big part) is that your aircraft is
always in motion. There is no 'hull down' pose for a jet, the closest you get is 'toss bombing' or similar fast approaches at low level.
Notice the word:
approach, becasue the bird is in motion.
a LOT of motion. It kinda has to be. Some of those airframes only remain air borne, because they have shit-tons of thrust pushing them faster than gravity can pull them down.
when they stop doing that, they fall down, they go 'boom'.
Staying in the air is an active act, not like a tank, that can be a bunker if you knock the treads out. Knocking out the engines and it stops flying, knock out the aerodynamic controls, it stops flying a little bit later, somewhere the pilot did not elect to point it.
thus, vulnerability, because you ahve lots of exposed moving parts that have to be exposed or you die, because you can't control where you're going or stay up in the air to get there safely.
Best way to describe this to the 'mech centric, is "what if you had to have gaps at every actuator and joint, and what if you can't protect those gaps, and every hit nearby has a chance of fouling it up?" tha'ts what life for an ASF is like-the flaps have to move, and when they move, they expose delicate surfaces because they can't NOT do that and still do their job. Further using your 'mech analogy, what if instead of thin back armor, you had to have a direct HOLE in the back of your 'mech to vent through, and that hole leads right into your engine...and it's BIG, like 30-60% of your rear arc big?
Battlemechs and tanks do not have to deal with this, because they do not have to be throwing energetic mass behind them to move forward, and they don't fall apart explosively if they STOP mving forward unexpectedly.