this post was submitted on 01 Nov 2024
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The Sukhoi Su-57 is a twin-engine stealth multirole fighter aircraft developed by Sukhoi. It is the product of the PAK FA (Russian: ПАК ФА, prospective aeronautical complex of front-line aviation) programme, which was initiated in 1999 as a more modern and affordable alternative to the MFI (Mikoyan Project 1.44/1.42). Sukhoi's internal designation for the aircraft is T-50. The Su-57 is the first aircraft in Russian military service designed with stealth technology and is intended to be the basis for a family of stealth combat aircraft.

A multirole fighter capable of aerial combat as well as ground and maritime strike, the Su-57 incorporates stealth, supermaneuverability, supercruise, integrated avionics and large payload capacity. The aircraft is expected to succeed the MiG-29 and Su-27 in the Russian military service and has also been marketed for export.

After repeated delays, the first Su-57 entered service with the Russian Aerospace Forces (VKS) in December 2020.

Origins

In 1979, the Soviet Union outlined a need for next-generation fighter aircraft intended to enter service in the 1990s. The programme became the I-90 (Russian: И-90, short for: Истребитель 1990–х годов, lit. 'Fighter of the 1990s') and required the fighter to be "multifunctional" (i.e. multirole) by having substantial ground attack capabilities, and would eventually replace the MiG-29 and Su-27 in frontline tactical aviation service.

Though not a participant in the MFI, Sukhoi started its own programme in 1983 to develop technologies for a next-generation fighter, eventually resulting in the forward-swept wing S-32 experimental aircraft, later redesignated S-37 and then Su-47.

Due to a lack of funds after the dissolution of the Soviet Union, the MFI was repeatedly delayed and the first flight of the MiG 1.44/1.42 prototype did not occur until 2000, nine years behind schedule.

Because of Russia's financial difficulties, the programme aimed to rein in costs by producing a single multirole fifth-generation fighter that would replace both the Su-27 and the MiG-29. Further cost-saving measures include an intended size in between that of the Su-27 and the MiG-29 and normal takeoff weight considerably smaller than the MiG MFI's 28.6 tonnes (63,000 lb) and the Su-47's 26.8 tonnes (59,000 lb).

In April 2002, the Ministry of Defence selected Sukhoi over Mikoyan as the winner of the PAK FA competition and the lead design bureau of the new aircraft. In addition to the merits of the proposal, Sukhoi's experience in the 1990s was taken into account, with the successful development of various Su-27 derivatives and numerous exports ensuring its financial stability.

Design

The Su-57 is a fifth-generation multirole fighter aircraft and the first operational stealth aircraft for the Russian armed forces. In addition to stealth, the fighter emphasizes supermaneuverability in all aircraft axes, capacious internal payload bays for multirole versatility, and advanced sensor systems such as active phased-array radar as well as the integration of these systems to achieve high levels of automation

The aircraft has a wide blended wing body fuselage with two widely spaced engines and has all-moving horizontal and vertical stabilisers, with the vertical stabilisers canted for stealth; the trapezoid wings have leading edge flaps, ailerons, and flaperons. The aircraft incorporates thrust vectoring and large leading edge root extensions that shift the aerodynamic center forward, increasing static instability and maneuverability.

Designed from the outset as a multirole aircraft, the Su-57 has substantial internal payload capacity that allows the carriage of multiple large air-to-surface ordnance. Weapons are housed in two tandem main weapons bays in the large ventral volume between the widely spaced engine nacelles and smaller side bays with bulged triangular-section fairings near the wing root.

The first aircraft in Russian military service to emphasize stealth, the Su-57 employs a variety of methods to reduce its radar signature. Similar to other stealth fighters such as the F-22, the aircraft aligns the planform edges to reduce its radar cross-section (RCS); the leading and trailing edges of the wings and control surfaces and the serrated edges of skin panels are carefully angled to reduce the number of directions the radar waves can be reflected. Weapons are carried internally in weapons bays within the airframe and antennas are recessed from the surface of the skin to preserve the aircraft's stealthy shape, while radar absorbent material (RAM) coatings absorb radar emissions and reduce the reflection back to the source.

As with other stealth fighters, the Su-57's low observability measures are chiefly effective against super-high-frequency (between 3 and 30 GHz) radars, usually found on other aircraft. The effects of Rayleigh scattering and resonance mean that low-frequency radars, employed by weather radars and early-warning radars are more likely to detect the Su-57 due to its size.

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[–] hexaflexagonbear@hexbear.net 6 points 11 months ago (1 children)

October - Horror, December - Christmas movies, November - watch Santa's Slay every night

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[–] Moonworm@hexbear.net 6 points 11 months ago (2 children)

Really liking this citybuilder Tlatoani. It's definitely cribbing from the old Impressions games, but with a more modern range system as opposed to walkers.

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[–] IzyaKatzmann@hexbear.net 6 points 11 months ago (5 children)

hi comrades, anyone have a suggestion for a globe? i wanted one to stare at... maybe vintage? idk

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[–] HarryLime@hexbear.net 6 points 11 months ago (1 children)

wyd in this situation: shit your pants

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[–] hexaflexagonbear@hexbear.net 6 points 11 months ago

Yeah uhh i think the chana masala in the usb port was a factory defect.

[–] LocalOaf@hexbear.net 6 points 11 months ago (1 children)

All my favorite sports teams are on losing streaks negative

How 'bout them Bruins @HarryLime@hexbear.net bear-despair

Pretty sure the Kraken are missing the playoffs and probably are gonna be below .500

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[–] Goblinmancer@hexbear.net 6 points 11 months ago

Todd howard has always been a mage hater even in morrowind when he added all those annoying spell reflect ass monsters in the expansions.

[–] GalaxyBrain@hexbear.net 6 points 11 months ago (1 children)

Found a cool city full of elves don't tell morgoth tho. It's a secret.

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[–] hexaflexagonbear@hexbear.net 6 points 11 months ago

I think ive made myself immune to DST changes and jetlag from never having a steady sleep schedule.

[–] SpiderFarmer@hexbear.net 6 points 11 months ago (1 children)

Did you crush on faeries in Neopets or are you straight?

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[–] CliffordBigRedDog@hexbear.net 6 points 11 months ago

monster hunter demo is looking promising but i fear the game is full of new ways for me to suck at it also your guy has a voice and theres even a dialogue system now

[–] blight@hexbear.net 6 points 11 months ago
[–] GalaxyBrain@hexbear.net 6 points 11 months ago (1 children)

Cacophony by Rudimentary Peni is still probably the best album ever and it's been a while since I've listened. My taste in music is immaculate so please go listen, follow along as best you can eith the lyrics as well. You want Lovecraft themed music that actually will make you lise sanity points? They this album by a guy going though a pretty deep obsession who I'd also raw dogging schizo affective disorder in the 80s. It's an experience.

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[–] M68040@hexbear.net 6 points 11 months ago* (last edited 11 months ago)

I’m not a big fan of the Moldbug/Opus Dei types. I don’t like the world, but it deserves better than political and religious philosophies that exist solely to soothe the egos of high society failsons who’re upset that people they see as their lessers don’t instinctively want to fall in line behind them.

[–] Rojo27@hexbear.net 6 points 11 months ago

Some foolery I was up to last nightEnded up just hanging out with a couple of coworkers and it was pretty chill for the most part. Got just tipsy enough to feel a nice buzz. On the other hand also got a bit nauseous after smoking hookah for a while. Maybe its just not for me, but I've tried 4 times and I've felt sick 3 times.

Was kind of surprised when my wingman coworker asked me if I saw myself in a long term relationship with my crush. He's usually more of a bro-type and doesn't really ever talk to me about more emotional stuff with her. We didn't really get into it much, but joked around that we're at least the same type of weird so he could see things working between us, which I appreciated.

Speaking of my crush she told me to get shitfaced drunk and I told her I don't do that lol. So I ended up sending her the sponge bob meme where he's leaning forward and let her know I did not in fact get shitfaced drunk and she got a kick out of it.

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