Key Points and Summary – Russia’s PAK DA “Poslannik” is pitched as a flying-wing stealth bomber to replace Tu-95s and Tu-160s, carrying Kh-102 cruise missiles and future hypersonic weapons with long range and heavy payload.
-But after roughly two decades of development it still has not flown, and sanctions, industrial constraints, and the Ukraine war keep pushing schedules to the right.
-The B-21 Raider is already in low-rate production and built around open systems for rapid upgrades, designed for deep penetration and networked strike.
-For now, the real competition is delivery: B-21 is hardware, while PAK DA remains a promise with an uncertain first-flight date.
In One Word: Mystery?
Is Russia’s PAK-DA Bomber A Rival To The B-21?
Russia’s PAK DA stealth bomber is being designed to carry nuclear-capable Kh-102 cruise missiles and hypersonic weapons. With a horizontal blended wing-body design and a reported take-off weight twice that of the B-21, the future PAK DA should be capable of carrying significant payloads when it arrives in service.
The B-21, however, is already in limited initial-rate production and is slated to be in the Air Force’s inventory in 2027. “B-21 Raider will be a dual-capable penetrating strike stealth bomber capable of delivering both conventional and nuclear munitions. The B-21 will form the backbone of the future Air Force bomber force consisting of B-21s and B-52s,” the U.S. Air Force states.
The Russian PAK-DA is part of the PAK (Perspectives of Aerial Complexes) program. Officially named the “Long-Range Aviation Complex,” the PAK DA bomber, codenamed Poslannik (“Envoy”), is expected to replace the aging Tu-95 and Tu-160 bombers.
Designed by the Tupolev design bureau, which has produced the Tu-95 and Tu-160, this aircraft is expected to undertake a range of missions, from nuclear deterrence to conventional strike operations. It will focus on stealth and advanced avionics to evade the latest air-defense systems.
The PAK DA Still Hasn’t Flown
The PAK DA program has been in development for two decades, with initial timelines repeatedly pushed back, and it still hasn’t flown.
A combination of factors including persistent development delays, reliance on outdated technologies, Western sanctions, and the diversion of resources to the conflict in Ukraine, have pushed the program to the brink of failure.
While initially envisioned as a rival to the U.S. B-21 Raider, the program has struggled to overcome technical challenges, particularly in developing the necessary stealth technology.
Flying Wing Design, Russia’s Answer To The B-2, B-21
In August 2021, then-Deputy Prime Minister of Industry and Trade Denis Manturov said the first PAK DA prototype had begun production. He added that the prototype would be ready by 2023, with full-scale production starting in 2027.
That was an ambitious timeline for an entirely new aircraft system. But then, a few months later, Russia invaded Ukraine.
PAK DA Stealth Bomber Russia.
PAK DA Russian Bomber. Image Credit: Creative Commons.
The Poslannik is touted as a subsonic sixth-generation aircraft capable of carrying 30 tons of nuclear and conventional weapons with a range of 7,500 miles. The PAK DA will feature a flying-wing design, internal weapons bays, AI, and drone-teaming capabilities.
The bomber remains in prototype development, with production unlikely before 2030.
The B-21 Raider Is A Smaller B-2, A Proven Design
The B-21’s smaller size translates into greater operational flexibility. The B-2 Spirit, with its massive wingspan and heavy payload capacity, was designed for long-range, high-payload missions, often carrying large nuclear or conventional munitions over intercontinental distances.
The B-21’s open-system architecture will allow frequent updates to its onboard systems, not only affecting the types of weapons it can carry but also making it easier to upgrade its avionics.
It has been reported that the B-21 can take off and land on smaller, more austere airfields. The aircraft will not require the climate-controlled hangars that the B-2s do.
Russia’s Claims Are…Well, Just That
The Russians have wanted a stealth bomber design since the earliest days of the American B-2 bomber, which will be retired to make way for the B-21.
Russia has built numerous fighters and bombers since the Cold War. However, it is a tough task to create a radical new flying wing design—something they haven’t done yet—infuse it with stealth technology, add a new engine, and give it the ability to carry 30 tons of ordinance (double that of the B-21 Raider).
The Su-57 fighter’s stealth has been undercut by difficulties bonding the body panels of the aircraft as tightly as needed to inhibit a radar return—it is also held back by its fourth-generation engines. Why would the PAK DA be any different?
Russia’s claims should always be taken with a healthy grain of salt. Russia is well known for being long on promises and short on delivery. As National Security Journal’s Harry Kazianis says, there is speculation that the PAK DA is the latest example of Moscow “vaporware.”
Russia’s Tupolev Workforce Is a Question Mark
Another area of concern for Russia is that it has never sold any Tupolev bombers on the foreign market. This means the workforce there has generally eroded and moved on to other firms or other projects. If they ever do get past the prototype stage, will they have the workforce needed for the bomber?
The PAK-DA is slated as a cooperative program among several enterprises.
These include the Kazan Aircraft Production Association, where the Tu-160 long-range bomber was built; the Novosibirsk Aircraft Production Association, where the Su-34 medium-range bomber is still manufactured; and the Beriev Aircraft Plant in Taganrog.
None has ever developed aircraft on par with the best American stealth aircraft.
The B-21 Raider and Russia’s PAK DA are both designed to be next-generation stealth bombers, although they differ in design philosophy.
The B-21 focuses on deep penetration, networked warfare, and superior stealth with a smaller, more advanced airframe, while the PAK DA aims for massive payload and longer loitering ability, potentially sacrificing some stealth for brute force.
But Russia’s goal of initial operational capability by 2027 seems like a pipe dream. A bigger question is whether it will ever actually fly.
Meanwhile, the B-21 is already in production.
About the Author: Steve Balestrieri
Steve Balestrieri is a National Security Columnist. He served as a US Army Special Forces NCO and Warrant Officer. In addition to writing on defense, he covers the NFL for PatsFans.com and is a member of the Pro Football Writers of America (PFWA). His work was regularly featured in many military publications.
