Former Italian pilot: Su-57 engines sound more like a siren

The foreign press pays attention to the sound of engines of the fifth generation Su-57 fighters of the Russian Aerospace Forces. For example, on the pages of The Aviationist, the Italian journalist and former pilot David Cenchetti draws attention to the fact that the engines of Russian combat aircraft emit a “howling sound” that is not typical of other new generation fighters.

The author notes that at the moment Russian Su-57s use AL-41F1 bypass turbojet engines from NPO Saturn.

David Cenchetti, a former pilot and author of several books on aviation topics, invites you to listen to the sound of working engines during a group flight of Russian fighters.

By The Aviationist:

The shooting took place several months ago, but it is still interesting, since it allows you to hear a very peculiar sound of the Su-57 engines.

Video from 2020 year:

The Italian author notes that it will hardly be possible to hear such a sound on new versions of Russian fighters, since the AL-41F1 will be replaced with engines of the second stage (second stage). We are talking about engines that are being worked on in our country within the framework of the Product 30 program. At least, this is how the second stage engines for the Su-57 are designated in open sources.

David Cenchetti:

The sound of the engine of the Su-57 fighter now looks more like a siren. For many aviation enthusiasts, this sound is still good to hear.

The Western press notes that this sound is partly due to the design of the air intakes used by Russian aircraft designers.

It should be noted that interest abroad in the Russian Su-57 fighter continues to grow. Added such interest, in particular, the recent tests of the Su-57 with an intra-fuselage hypersonic missile, which were recognized as successful.

Comments

[SaLaR]

Ahtung Ahtung !!!! In the sky Rus Ivan !!!!!! bastards remember

[Svetlana]

"Rus Ivan" has never sounded. You come up with a hat and do it.
It sounded: "Attention, attention, in the sky Pokryshkin." Akhtung, akhtung, Pokryshkin in der lyuft!

[lwxx]

Quote: SaLaR

And besides Pokryshkin, no one flew? The phrase Rus Ivan generalizes ... if you do not understand this, then take off your hat ... blow your brains out ...

Yeah, that's how it was Straight from 41 years .... The phrase appeared in 43 and sounded - Ahtung, la funf in der lyuft. Since at that time the Fritzes did not yet know the weaknesses of the La-5, and then the La-5fn ... And to Pokryshkin, this was already picked up by the comrades of the military correspondents.

[Svetlana]

Not necessarily military correspondents. This phrase is also mentioned in the autobiographical story "The Sky of War". It was pronounced by the mechanic Pokryshkin after the raid on their airfield, when Pokryshkin himself was not there.

[Object.F7]

Pokryshkin from April-43, battle for Kuban, fought in an aircobra. And his entire regiment. So the phrase "attention, in the sky Pokryshkin" is no side to La-5.

[lwxx]

I was a little mistaken “Ahtung, akhtung! LA funf in der luft! " - "Attention attention! LA-5 in the air! " - this alarming warning of fascist observers first sounded in the Stalingrad sky in the fall of 1942. And Pokryshkin is still far away. And as you write, La 5 has no side to Pokryshkin. Sources: Wings of Victory, Kaberov I. A. "Swastika in sight". And there is "Akhtung, Akhtung! Safon in der lyuft!" 1942 North Sorokin Z.A. Stars on the fuselage. - M., DOSAAF, 1977.

[EvilLion]

In fact, the Germans called La-5 the new "rata" (simply "rata", that is, the I-16 rat), since they usually did not know the name.

[figwam]

Quote: lwxx

And to Pokryshkin, this was already picked up by the comrades of the military correspondents.

The Germans knew Pokryshkin by his call sign, when they heard him on the air, they warned everyone that Pokryshkin was in the air.

[Grim Reaper]

And imagine how many Luftwaffe pilots dreamed of shooting down Pokryshkin, and many of our own. So the phrase: "in the air ..." is applicable to the majority. Alas, the Germans knew how to fight.

[Doliva63]

Quote: Grim Reaper

And imagine how many Luftwaffe pilots dreamed of shooting down Pokryshkin, and many of our own. So the phrase: "in the air ..." is applicable to the majority. Alas, the Germans knew how to fight.

Why did we win and not them?

[Varaga]

In the 41st La-5 (especially La-5FN) did not exist yet.

[Sandor Clegane]

Quote: lwxx

Straight from 41 years old

there was no La-5 in 41))

[lwxx]

Did you try to read carefully? Where did I indicate that la5 was at 41? It's about the origin of the phrase ....

[Sandor Clegane]

Quote: lwxx

Have you tried to read carefully?

I always read carefully and your post sounds exactly from 41 years old! and if we are talking about a German phrase, then the model of the plane has nothing to do with it!

[lwxx]

Your emoticons are not loaded? And don't be so nervous.

[Sandor Clegane]

Quote: lwxx

Your emoticons are not loaded? And don't be so nervous.

I didn't load them, this is one, but two are calm like a python, you need to be less nervous when writing posts

[lwxx]

Well, if you can't read the full posts, tady oh. Have a drink. Have a snack and read the newspapers the old fashioned way. Happy Holidays!

[Proxima]

This engine has a lot of heaped up air intake and nozzle. Pazmenny arc, which ensures ignition of fuel immediately after it enters the combustion chamber. Thanks to this, the optimal combustion mode is maintained, and the so-called. torch. The temperature of the gases in front of the turbine ranges from 1950 to 2100 ° K. For "ordinary" engines, this temperature does not exceed 1700. So this engine whistles like crazy.

[Cry]

The Italians, as subtle connoisseurs of bel canto, noticed that the Su-57 sings like Caruso - a tenor punches a polyphonic orchestra. Thus, they emphasize the unusual characteristics that you indicated and that the designers managed to overcome.

[lucul]

For "ordinary" engines, this temperature does not exceed 1700. So this engine whistles like crazy

If we draw an analogy with car motors, then this engine is turbocharged)))

[tralflot1832]

In the north Akhtung! Akhtung! Safon in der backlash! Attention in the sky Safonov! It is a pity that the engine jammed in the last flight!

[Grif]

"Safonov in der lyuft" also sounded

[XXXIII]

Quote: SaLaR

CANCEL

Quote: Svetlana

"Rus Ivan" has never sounded. You come up with a hat and do it.
It sounded: "Attention, attention, in the sky Pokryshkin." Akhtung, akhtung, Pokryshkin in der lyuft!

It doesn't matter what they shouted, the main thing is shouting. ps. found something to argue about.

[iouris]

what is this veal delight? keep yourself together

[Black Colonel]

And what does it have to do with it, or not? The sound is really interesting. In pre-revolutionary Russia, wire beeps were tuned so that they would not just hum, but hum beautifully, in several tones. Maybe here, too, the designers tried to make the adversaries, upon hearing this sound, throw their weapons and run to change diapers.

[Ax Matt]

I remembered something else: the psychological impact of "bast shoes" during the Great Patriotic War, when they were specially attached devices for heartbreaking howling (propellers on the wing console). The dive of such an aircraft inevitably led to confusion among the recruits. Then they got used to it ...

[Emil mamedoff]

I remembered something else: the psychological impact of "bast shoes" during the Great Patriotic War, when they were specially attached devices for heartbreaking howling (propellers on the wing console). The dive of such an aircraft inevitably led to confusion among the recruits.

This is precisely the sound in the Harop kamikaze, and powerful.
The fact that this was done in the Second World War (the Germans, if I’m not mistaken) learned only the other day, from the National Geographic TV program, there is often a cycle of programs about Nazi Germany, there you find out that your hair is on end.

[Emil mamedoff]

But that sound is a dull loud rumble, and the sound of these SU-57s is a whistle, I think they will fix it.

[ankir13]

Don't look Emil National Geographic, there really is hair on end from lies ...

[Doliva63]

Quote: Emil Mamedoff

I remembered something else: the psychological impact of "bast shoes" during the Great Patriotic War, when they were specially attached devices for heartbreaking howling (propellers on the wing console). The dive of such an aircraft inevitably led to confusion among the recruits.

This is precisely the sound in the Harop kamikaze, and powerful.
The fact that this was done in the Second World War (the Germans, if I’m not mistaken) learned only the other day, from the National Geographic TV program, there is often a cycle of programs about Nazi Germany, there you find out that your hair is on end.

Wow, how old are you? But what are you interested in the history of the Second World War -

[Ax Matt]

Yes, and not only that they did ...
I advise you to read the book "CC in Action". When I was a 15-year-old boy, I read it. In 1985, there was no National Geography. But we clearly understood and knew WHAT THE GERMANS DID EXACTLY in the Great Patriotic War ... And the series "The Unknown War" is very informative in this sense.

[Prisoner]

"In 1918, on the Tsaritsyn front, Soviet pilots" bombarded "the White Guard units with original" bombs "that emitted a strong howling sound when they fell to the ground. Howling bombs caused panic in the enemy camp. The Whites were convinced that this bomb was of special power.
The howling aerial bombs of that time were rather primitive. In most cases, they were nothing more than metal cans (cans, from under aviation oil, etc., in which holes were perforated. When such a can flew in the air, it made a sharp, whistling, howling sound. "(C)

[Alex_You]

Quote: Ax Matt

I remembered something else: the psychological impact of "bast shoes" during the Great Patriotic War, when they were specially attached devices for heartbreaking howling (propellers on the wing console). The dive of such an aircraft inevitably led to confusion among the recruits. Then they got used to it ...

Actually, this siren helped the pilot estimate the dive speed without looking at the instruments.

[akarfoxhound]

You don't look at the instruments "point-blank" in flight. Starting from admission to the flight school, when you pass the professional selection - there is such a test called "compass" or "clock". Those. in front of you there are 100 dials with arrows and in any of the corners of this dial there is an indication of time or direction. And SE (southeast, for example) can be located at the top or at the top left or in any other place), or time 12, 17 well, etc. And you have to sign a reading under each "alarm clock" for a limited time. Those. they check you how you orient yourself according to the indications of the arrows. Then you, having already entered, study the plane to the cog, you must draw the same dashboard with digitization and the division price as a keepsake.
This is what I mean, in the air you "don't read" the device without taking your nose out of the tidy, but with your peripheral vision you see the position of the arrow and understand whether these readings are normal or not. The devices are different, the positions are different, the restrictions are different. In a simple training "bicycle" L-39, one of ours in the cockpits of the pilot and instructor counted 488 controls and displays. And after the combat materiel you sit in it and realize that the apparatus is empty and primitive in saturation. And when they started to study, they thought - "you will break your brain."
So the indication of the increase in the dive speed by sound is nothing more than a fiction.

[lucul]

For "ordinary" engines, this temperature does not exceed 1700. So this engine whistles like crazy

Pilot? How important is roll speed in dog fight?

[andranick]

In a simple training "bicycle" L-39, one of ours in the cockpits of the pilot and instructor counted 488 controls and displays.

Yes, I remember how, after L29, I sat down in the mig-23 simulator. First thoughts "Mother-mother-mother, what should I do with this ?!" )))

[iouris]

Well this is how much a pilot needs to know ?!
but if he knew, would he have climbed into this cabin!

[kytx]

here about the dial gauges:
many specialists in the repair of electronic equipment still use analog multimeters (with an arrow and a set of scales)
Why?
because you don't need to look at it, the readings are read with peripheral vision
it is much faster than reading the digital indicator readings with each measurement and fewer movements
the same story with a classic watch, the time can be easily and quickly determined even without marking

[rtutaloe]

Actually, this is strictly official information. In addition to lateral vision, you also need to aim at the target on a dive. In addition, if you missed the altitude and did not drop the bomb, then no machine gun will take you out of the dive. So we were guided by the sound.

[akarfoxhound]

Quote: rtutaloe

Actually, this is strictly official information. In addition to lateral vision, you also need to aim at the target on a dive. In addition, if you missed the altitude and did not drop the bomb, then no machine gun will take you out of the dive. So we were guided by the sound.

That is, based on what you described, you have no personal experience of practical dive bombing?

[Svetlana]

Quote: Ax Matt

they were specially attached to devices for heartbreaking howling (propellers on the wing console)

The characteristic features of the Junkers Ju-87 (Thing) of the Ju 87В-1 series: an inverted gull wing, a fixed landing gear in fairings, on the landing gear there are air sirens (impellers), which allow the pilot to hear the dive speed without looking at the instruments ( the tonal pitch increased with increasing speed) and have a psychological demoralizing effect on the enemy. Also, the siren was necessary so that in the event of a failure of the automatic withdrawal from the dive, the pilot did not forget to remove the air brakes when the aircraft was taken out of the dive, since flight and climb with the brakes released is impossible.

See https://ru.wikipedia.org/wiki/Junkers_Ju_87

[kytx]

I haven't piloted a thing, but I read this:
after detecting a target, the pilot pushed the plane down onto the left wing and began to dive (from 60 to 90 degrees) at an altitude of about 500-600 meters, the "reset" lamp came on
the pilot pressed the corresponding trigger
after reset
at an altitude of no more than 400 meters, an automatic exit from the dive took place - the air brakes were turned on, the propeller was set to the "climb" mode (step-gas)
even if the pilot lost consciousness from overloads (and there was only 6.5 ji there), the device will come out of the dive
Well, and so the guys were also desperate, knowingly knocking them down and taking prisoners

[Svetlana]

This thing is reborn as a phoenix from the ashes .. In February 2021, the American company Textron handed over to the US Air Force the first turboprop light combat aircraft Beechcraft AT-6E Wolverine ("Wolverine"). The aircraft almost exactly repeats the design of the Stuka with the only difference that the Wolverine has a retractable landing gear. The key point is the inverted gull wing. On the German dive bomber, this type of wing was used to reduce the height of the landing gear struts in flight and, thereby, reduce their aerodynamic drag. On the Wolverine, the reverse gull wing increases ground clearance and expands the ability to carry missiles and bombs. It seems that the "Wolverine", like the "Stuka" has a dive mode on the target. The cost of one flight hour during combat operations against militants in light turboprop dive attack aircraft is an order of magnitude less than that of jet aircraft.
See https://vpoanalytics.com/2021/02/22/zachem-amerikanskim-vvs-nebesnyj-tihohod

[kytx]

The thing can be revived at the current technical level
But try to revive those thugs

[Svetlana]

Quote: kytx

those thugs

In Syria, the Americans revived similar ones. There are still a lot of them left there .. Turboprop attack aircraft would be a good addition for the Su-25 in the free hunt for those thugs.

[kytx]

the thing initially was never an attack aircraft, but a dive bomber with amazing accuracy in its time and a good load
he even did not use such a typical attack aircraft weapon as NARs

propeller-driven attack aircraft are good for chasing all sorts of insurgents
business of course is also good
but none of this does the super task because it simply does not exist :)
and the customer is usually not rich
and the future of assault aviation today belongs to helicopters, for obvious reasons
and this is not my opinion

[alexey alexeyev_2]

As a child, my grandfather talked about the war. It was terrifying when a bomb flies at you and howls. Then it turned out that the nemchura was throwing an empty barrel riddling it with a machine gun.

[keeper03]

The Fritsevskys also howled when diving during bombing!

[BASHAR ASAD]

Impressive

[Pandiurin]

There is no sound like a siren.
It all depends on how fast the sound source is approaching / receding. This effect occurs when the plane approaches and the sound frequency increases.
When switching to supersonic, there will generally be a clap.
If you think so, then supersonic aircraft fly with flaps [of wings)].

[Revival]

From supersonic wing flaps))

[vvvjak]

Doppler effect.

[Tarasios]

straight "star wars" :)

[Vlad world]

Quote: Tarasios

straight "star wars" :)

[bars1]

On the forums, there is a version that such a characteristic sound of the Su-57 is due to radar blockers

[gland]

Well, I don't know, for me it just sounds like a thrill))) just smiled))) !!!

[Revival]

Oh what the sound of the 1st stage, and only the second, oooooo

[Svetlana]

Quote: SaLaR

And besides Pokryshkin, no one flew? The phrase Rus Ivan generalizes ... if you do not understand this, then take off your hat ... blow your brains out ...

And you do not generalize, but learn history and the reason for rudeness will disappear. Usually ignorant are rude, more arguments are dumb.

[Al_lexx]

Good sound. Normally, it catches up.

[Pavel57]

Quote: Svetlana

Attention, attention, in the sky Pokryshkin. "Akhtung, akhtung, Pokryshkin in der lyuft!

Alas, this is a myth invented by journalists.

[Object.F7]

Not a myth at all, the Germans listened to the Russians, the Russians listened to the Germans. Pokryshkin was definitely known as a seasoned ace.

[kytx]

Well, why are you arguing as children?
it is clear that the Germans did not mean Pokryshkin personally, but his unit, and if they are in the air, problems should be expected. and the Germans were perfectly informed who was in front of them on the site and with whom it was better not to get involved.

[aries2200]

forgotten reptilians !!! ..this is just the beginning, the next version of the engines will play a funeral march for the reptilians "To the Death of the King"

[svp67]

The Italian author notes that it will hardly be possible to hear such a sound on new versions of Russian fighters, since the AL-41F1 will be replaced by engines of the second stage (second stage).

Let's see and listen ...

[Vdi73]

It is necessary that they still be written and scattered from this sound. Although the sound will not reach them for the most part, just a bright flash and the "light" went out.

[Sasha from Uralmash]

What is it about! Well ...? What will we get from this? How to live with this knowledge now?

[Runoway]

I noticed an unusual sound even when I saw it for the first time, and the Su-35 was training overhead for a whole month, seemingly with the same engine, but the T-50 still flying had a completely different sound

[agond]

High-frequency sound is heard when the aircraft approaches, it can be the source of the first compressor paddle wheel plus the effect of resonance in the air intake

[Pavel57]

Quote: Object.F7

Not a myth at all, ........

Moreover, there was another version: "La funf in der luft."

[Ros 56]

Apparently, the former was also afraid of the sound.

[orionvitt]

make a "howling sound" that is not typical of other new generation fighters

You might think that the others fly silently.

[iouris]

the lower the noise, the lower the loss, i.e. better work of constructors

[sifgame]

flight Tu-22M3 send him let him enjoy

[Boris85]

Yes, cool https://youtu.be/X8NxGCeFYXQ

[Vyacheslav01]

Indeed, the sound is a song for those who flew.

[lelik613]

Immediately visible - stealth ...

[Amin_vivec]

they are still flying on "subsonic" and their approach is heard))) At supersonic, there will be silence at first, and then explosions))))

[shonsu]

I don’t remember that sound from the Su-57. I remember the rumble, but in general they sounded the same as in the Su-30 and Su-35. And this sound is more like the sound of a passenger Tu-154.