Su-57 Showcases 10-Second Takeoff using 0.8km Runway at Aero India 2025, Highlighting Russia's AL-41 Engine Powers

Su-57s-Impressive-10-Second-Takeoff-Stuns-at-Aero-India-2025.jpg


Aero India 2025 witnessed a stunning display of Russian aerospace engineering prowess as the Su-57, a fifth-generation fighter jet, executed a breathtaking takeoff in a mere 10 seconds using only 0.8 kilometers of runway. This impressive feat underscores the exceptional capabilities of the aircraft's AL-41 engine.

This achievement marks a significant leap forward in military aviation technology, demonstrating that short takeoff and landing (STOL) capabilities can be integrated into fifth-generation fighter jets without relying on extensive and costly infrastructure.

At the heart of the Su-57's remarkable performance lies the AL-41F1 engine, a testament to Russia's advanced aerospace engineering. This afterburning turbofan engine boasts an exceptional thrust-to-weight ratio and high performance, enabling the Su-57 to achieve rapid takeoffs and unparalleled maneuverability in the air.

The AL-41 engine's thrust vectoring nozzles, coupled with cutting-edge engine technology, deliver unmatched power and efficiency. This allows the Su-57 to operate from shorter runways compared to conventional fighter jets, providing enhanced operational flexibility and adaptability for a wide array of missions.

The ability to take off from short runways is a crucial advantage for modern fighter jets, particularly in regions with limited airstrip infrastructure. The Su-57, powered by the AL-41 engine, offers a compelling solution to this challenge, making it an ideal platform for operations in diverse environments, from forward-deployed bases to rugged terrain where long runways may not be feasible.

The demonstration at Aero India 2025 not only showcased the raw power of the AL-41 engine but also highlighted the potential of fifth-generation fighters to operate flexibly and efficiently across various combat scenarios. These capabilities could revolutionize the way air forces plan and execute missions, especially in areas with limited infrastructure or under high-threat conditions.

Furthermore, the Su-57's ability to take off from short runways underscores its cost-effectiveness. Unlike traditional fighter jets with STOL capabilities that often require specialized and expensive infrastructure, the Su-57 achieves this feat without significant additional investment in airfield infrastructure.

This breakthrough technology opens up new possibilities for air power projection and enhances the operational capabilities of air forces worldwide. The Su-57's performance at Aero India 2025 has firmly established it as a game-changer in modern military aviation.
 
The video released of square nozzles Su-57 tests were with AL-51. In the nozzle/engine closeup image, we can see a radar blocker inside the nozzles/engine (meant to screen the nozzle from radar radiation penetrating inside and reflecting out) which is characteristic of AL-51 and absent in AL-41.
It had one AL51 with flat nozzles and a radar blocker, and one old AL41 without even the sawtooth ends of the earlier AL51.
 
Flat nozzles work better for stealth but create bigger edge vortexes, making the engine less effective owing to 5% or more loss of thrust than round nozzles. Not to mention loss of maneuverability (at least compared to round 3D vectoring ones). In terms of engine performance, square nozzles are actually a regression.
5% thrust loss and having slightly less impressive maneuvers in pony shows is well worth it for far better rear aspect stealth than any fourth gen has ever had.
 
I just want to highlight few more issues with Russian engines.

1) Not only do they have a very short engine lifespan, they wear out much faster when using afterburner.
2) They have major issues with FOD (Foreign object debris), I have seen a video of American pilot highlighting that problem in SU30mki after an exercise. He mentioned how all western jets can take off on same runway one after another with minimal time difference while SU30mki couldn't do that. SU30mki has to wait a significant time for dust and tiny pebbles to settle down on the runway before next su30mki can take off. He also mentioned how Indian pilots complained that they had to send the whole engine back to russia to get it fixed if it had issues. This was in 2008-2009. Im not sure if anything has changed yet.
 

Forum statistics

Threads
4,049
Messages
41,762
Members
2,647
Latest member
Karan Gogoi
Back
Top