A delivery in this timeframe could prove highly significant since it coincides with the highest tensions between Israel and the Islamic Republic since the latter’s inception.
Given that Iran paid for them years ago and is now in a bit more of a tense situation than usual, I have a feeling Iran is saying to Russia that they'd better deliver or they'll stop selling stuff to Russia. Iran will be fine if Russia loses to Ukraine, so they can afford to make that threat
This seems good all around to me. Russia has fewer planes to attack Ukraine and Israel ends up focusing more of its resources on the Iranian military instead of Gazan civilians. A bit of a "why don't you pick on someone your own size" situation.
The Iranians have been churning out literal thousands of Shahed drones for Russia to shoot into Ukraine. I’m pretty sure this was the other half of the deal they made.
SU-35s are legemdarily good like their older SU-27 brothers. They're arguably the best Gen 4 aircraft in the world now. In general,.Soviet and Russian aircraft have been very formidable.
What you're confusing "shittier" with is after Sukhoi hand the aircraft over to the Russian military. At which point poor selection and training hop in, strapped with janky or old weaponry, given orders by notoriously bad tacticians. And suddenly your fancy "Gen 4.5" aircraft is getting downed by anything with a half modern missile in the tube.
Toe-to-toe it'll be Israel's F-16s—which will need modern configs—that will present a challenge. Certainly not the F-15s. But the real contender will be SAMs which I imagine are the latest fancy American ones.
Russia's share of the global arms export market was in a gradual decline before Ukraine, and it's been in a virtual freefall post invasion.
This is the kind of PR they need for the long term financial survival of their big ticket weapons programs. So whether they can spare these planes militarily, might be a secondary consideration behind financial longevity concerns.
For one thing, they don't have a border with Israel, and Israel doesn't have Marines, so they can't even load up and sail through ally controlled water.
If Israeli troops try to invade Iran, or vice versa, it will either be through Iraq and Jordan/Syria and a whole bunch of weird shit will kick off if that happens.
Also... Everyone knows Israel has nukes, and Iran's program was rather famously sabotaged.
SU-35 is a defence jet, not an assault one. It's getting shot over Ukraine because it's not used for its purpose. It's like sending a heavy bomber into a dog fight.
It's supposed to be an air superiority aircraft not an interceptor. I think you've confused the two. Inceptors are defensive, air superiority are aggressive.
Their role is to take control of new areas, in this role they've been taken out by Ukraine's air defence. Which defends against aggressive aircraft.
You don't see an issue in international relations if Iran is cooperative with Russia? And how this might involve the world and in return the United States?