I say that the Erusian's were using "experimental" fighter designs because many of the aircraft you encountered late game, were, in "2005" incomplete. The SU-37 with forward swept wings never went into mass production in our world. Erusea had it and put into production because, as the end neared for it, it began to quickly rush the "experimental" designs of AltEarth to the frontlines in desperation.
You could say that. But if you take into account the rest of the Ace Combat world, then those Su-47s and F-15 ACTIVEs aren't really experimental designs since they've seen action ten years before the Usean Continental War.
I applied the same logic to the super-sonic bombers. Again, we see them a lot in *our* world. But we never saw much of them in AC4 after Emancipation. This seems likely because Erusea didn't build many of them, and rushed the ones they had built into service.
Mmm... maybe they just didn't build many of them. Like those Su-47s and F-15 ACTIVEs and F-22s. Probably because of the Ulysses-caused financial difficulties, and due to budget stomping to fund the Stonehenge projects and all that.
I think that Erusea and the ISAF both started with the same crappy old-school equipment, and that both sides weren't able to mass manufacture state-of-the-art models due to financial hardships. This is why, when North Point was endangered by enemy bombers, all the ISAF could send was a widdle F-5.
The reason why later in the war, the ISAF ended up having stuff like F-22s was probably due to lend-lease from other nations not directly involved in the war, such as Osea and Yuktobania.
The only successful "advanced" designed the Erusean's used was a direct "knock off" of ISAF's F-22 Raptor. I call it a "knock off" because ISAF was often portrayed using the F-22 as a symbol of sorts. So it wouldn't have made as much sense for Erusea to call it one of their "experimental" late designs. Their F-22 was a direct copy of ISAF models. Which indicates the aircraft had been designed prior to the war and shared amongst ISAF's members.
The Ace Combat world really doesn't adhere to conventional stuff wherein particular nations end up with particular aircraft. It seems that in their world, every nation gets a mishmash of real-life American, Western NATO, and Russian Warsaw type of equipment.
I blame the corporations for this, and not without reason. In Ace Combat 5, we see that the Grunder Corporation was a former Belkan national munitions producer but was privatized when South Belka was assimilated into Osea. We see Grunder provide weapons to not only Osea, but also Yuktobania, and when shit hit the fan the corporation had manipulated things far enough so that it could reliably call on the aid of treacherous units in BOTH militaries.
In Ace Combat 3, which is set in the future of the Ace Combat world, things go so far that the corporations have replaced nations and that its the corporations that are waging war against each other, and against rebels and the remaining world governments, in a complex multi-sided war large enough to fit 3 CDs, so complex that the player can CHOOSE which side to defect to. AND it's a cyberpunk mess where the player is actually a fighter simulation AI system.
Ace Combat 6 is a real shame. It had all the potential to be an Ace Combat of TEN THOUSAND AWESOMES, but the presentation was a shit attempt at combining 04, 5 and Zero and it became a mess. A very good looking mess with rather nice gameplay.
Multiple tunnel runs! LANDING IN A RECENTLY CAPTURED AIRFIELD IN THE MIDDLE OF COMBAT! Man. Six should be played without the cinematics.
Dance with the angels! Golden King! MATILDAAAAAA!!!