Few modern combat aircraft have had as long a gestation as the Su-34. First flown in 1990 as the Su-27IB, it was orphaned almost immediately by the disintegration of the Soviet defence budget. Development crawled through the 1990s on a handful of prototypes; a first production-standard airframe flew in 1994, but full-rate production at Novosibirsk only ramped up in the 2000s, and state trials were not completed until 2011. Formal service entry followed on 20 March 2014. The aircraft that finally emerged was substantially more capable than the 1990 prototype — but the timeline is a reminder that Russian claims about the type should be read against a long record of delay.

For the first year of the 2022 invasion the Su-34 lacked large numbers of precision stand-off weapons, so to hit targets accurately it reportedly had to fly low — straight into the reach of Ukrainian man-portable and medium-range surface-to-air missiles. That exposure is widely cited as the reason a well-protected aircraft nonetheless suffered repeated losses. The 2023 arrival of the UMPK glide-bomb kit, which lets the aircraft toss a winged bomb from tens of kilometres away while staying behind its own lines, changed the tactic — though Ukraine has continued to claim shoot-downs. All of these tactical accounts rest heavily on wartime reporting and should be treated as provisional.

The Fullback’s two AL-31FM1 turbofans are a modest evolution of the engine that powers the Su-27, tuned for the heavier strike airframe. What sets the Su-34 apart from most tactical bombers is fuel: a large internal capacity plus air-to-air refuelling give a ferry range commonly cited around 4,500 km and a combat radius near 1,100 km with a heavy load. This is what lets the type loiter and strike across the full depth of a theatre. As with all its performance figures, the numbers come largely from the manufacturer and should be read as nominal rather than independently verified.

Because the Su-34 is a state product bought by the Russian military on domestic contracts, no audited flyaway price exists in open sources. A figure of roughly $36 million per aircraft is widely repeated, drawn from Russian contract totals divided by aircraft counts and converted at various exchange rates — it should be read as an order-of-magnitude estimate, not a firm number. No reliable public cost-per-flight-hour figure exists either. Export deals, such as Algeria’s reported Su-34ME contract, are quoted with secret pricing, so even the export cost is not independently confirmed.