Sukhoi Su-27/30/33/35/37 Flanker series & Su-34 Fullback - History, Design, Performance & Dissection (Part 1)

on the radar view the perspective is already taken into account, and it is far more accurate than eyeballing it using the strobes.

This is literally the case as is consistent with track IR. You are hyper focused on a miniature radar screen that is universally used for every vehicle with a radar in the entire game. Therefore, GJ has blessed you with the ability to see the beam travel accross the screen so you can see for yourself.

±30º


±60º

as you can see eyeballing it is far more complicated than it looks, as the camera is too far form the radar so there is a lot of distortion, it is far easier and accurate to use the radar display itself

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Everything shows fine, even at large angles

Yes, I know this. I am glad you do too. However 3rd party compatible software is showing a 50-degree scan for the radar & 60-degree for the IRST as declared in third person. Everything is consistent. I have it hooked to the game as we speak (dev server).

@Nowel I would disassociate myself from such emotional arguments ^. Lest you look silly as this individual who makes absurd claims about the game out of anger but are the only one left when they are proven undeniably false.

He’s the one who made the claim, you just explained his position. However, you are the one left answering for it. While he’s nowhere to be seen.

You do not like my technical or historical presentation on Soviet radars. That’s cool. But you are going to have a hard time overturning history & technical ability to convince me. These radars are nothing compared to Post-Soviet RuF modernization & US aircraft.
Their Cassegrain radar set ups do not actually move. the Primary Reflector Plate does & that is the only piece. The Horn & secondary sub reflector do not, they are static. They are severely limited in mobility & must rely on reflection from secondary & primary plates to direct beams in limited angles.

It is the exact equivalent of using two mirrors & a light bulb to attempt to focus direct light at moving objects. Only one can pivot. They are nothing like the F-4J.


Su-27 high AoA flight curve

It has little to do with high AoA capabilities.
The standard Su-27 has a baffle in the air intake to block foreign objects. When the aircraft taxis, the baffle rises. The auxiliary air intakes on both sides and the bottom of the air intake are opened. The Su-27SM either cancels the baffle or only takes in air through the auxiliary air intakes on the side.
It is worth mentioning that the auxiliary air intake design was retained in the early PAK FA prototype.

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Вероятно, новые Су-27СМ изготовлены на основе остававшегося на КнААПО производственного задела по планерам самолетов Су-27СК от приостановленного лицензионного контракта с КНР. При этом машины оснащены новыми двигателями АЛ-31Ф-М1 (АЛ-31Ф серии 42) производства ММПП «Салют», отличающимися повышенной до 13 500 кгс тягой и увеличенным ресурсом, и новыми комплексами оборудования и вооружения – даже более совершенными, чем применяемые на поставлявшихся до сих пор модернизированных Су-27СМ.
Как рассказал в интервью нашему журналу минувшей осенью генеральный директор ОАО «НИИП им. В.В. Тихомирова» Юрий Белый, «в конце сентября состоялся первый успешный пуск с поражением цели модернизированной ракетой с борта опытного самолета Су-27СМ3. Для применения этой ракеты на повышенных дальностях модернизированы антенна, передатчик и канал передачи данных радиокоррекции штатной РЛС самолета. Модернизированный Су-27СМ3 передан на государственные испытания». По всей видимости, новые истребители выпущены как раз в таком варианте. Одновременно с доработками радиолокационного прицельного комплекса и введения в состав вооружения модернизированных ракет средней дальности усовершенствовано информационно-управляющее поле кабины летчика – она стала полностью «стеклянной».

http://take-off.ru/news/107-news-1-2-2011/561-su-27sm3-02-2011

According to this 2011 report, the first Su-27SM with the AL-31FM1 engine was delivered in 2011. Meanwhile, the Su-27SM3 entered the state acceptance phase. I worry that the gaijin will try to split the Su-27SM into two fighters - just like they did with the MiG-29G 9.12; or skip the Su-27SM with the AL-31FM1 and release the Su-27SM3 directly.

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That is a vortex generator. 100%. It has everything to do with alpha flight. I am not talking about the baffle.

It has no bearing on the intake as you can see on the inside walls of the intake.

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В ходе испытаний в состав ОЭПС-27 была введена нашлемная система целеуказания (НСЦ) “Щель-ЗУМ”. Эта аппаратура, разработанная на киевском заводе “Арсенал” (главный конструктор А.К.Михайлик), включала нашлемное визирное устройство и блок оптической локации со сканерным устройством определения угла поворота головы летчика. НСЦ позволяла измерять координаты линии визирования при визуальном слежении за целью летчиком в зоне +60" по азимуту и от -15╟ до +60╟ по углу места при скорости линии визирования до 20╟/с, а также осуществлять наведение на цель зоны автоматического захвата ОЛС с одновременной передачей координат линии визирования цели в БРЛС и головки самонаведения ракет. Совместное использование НСЦ и ОЛС позволяло в ближнем маневренном бою сократить время прицеливания, осуществлять быстрый захват цели, обеспечивать целеуказание головкам самонаведения ракет до захода цели в конус возможных углов захвата цели головкой и тем самым осуществлять пуск ракет при максимально допустимых углах.

The HMD system directly controls the IRST, which in turn controls the radar… The OEPS-27 is integrated. This has nothing to do with whether the antenna can rotate.

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I see what you mean.
But it is also not a tool for increasing lift at high angles of attack. This is the azimuth antenna of the SPO-15 Берёза system.

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BECAUSE its referring to IRs missiles.

if the IRST is providing designation to the homing heads directly. It is referring to the IR seekers which do not need reliance on any radar.

Yes, it is 100% even the Yak-141 has them.

They destabilize airflow for the elevators in high angles of attack.

It does not “increase lift”. That is not what destabilizers do. They delay the aircrafts point of stall.

These are SPO-15 RWR antennas

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Antennas can be inside of aerodynamic designs. Its not exclusively one or the other. There is RWRs sensors in wings. Thats not a wing but an RWR?

It’s just SPO-15 antennas, all flankers with l-150 missing this

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It can obviously be used to guide radar guided missiles. This is a simple membership problem (although complex to implement) but has nothing to do with the structure of the inverted Cassegrain antenna.
If you want to use the DCS Su-27 as an example, then you’d better know which parts of the DCS Su-27 module are close to reality and which parts are not. As a game, DCS also has many deviations from reality. Many features of the Su-27’s fire control system were not restored until 2.5.7 ob. And its flight control system is still using the wrong version. (Interestingly, they obviously know about this error in FM and point it out, but the game continues to use the wrong version.)

Yeah… many things have dual purposes. The Soviet Union in particular was heavily invested in simplicity & multipurpose designs. It’s kind of a cultural thing in communist society. Additionally they are the pioneers in high alpha flight. This is a standard Soviet doctrinal design in airflow destabilization again also found in the Yak-141.

I have never read any literature about the antenna fairing on the side wall of the air inlet providing lift and control gain at high AOA. Is it convenient to provide literature?
In fact, regarding the horizontal tail at high angles of attack, it should be remembered that its angle of attack is always smaller than the main wing. The control problems at high angles of attack are more from the ailerons (such as the roll reversal that often occurs in the F-14, which manifests as weak aileron control effect on fighters such as the MiG-29 and F-15). These problems can be alleviated by flaperon design, horizontal tail roll control and rudder roll control, which is also the solution used on aircraft such as the Su-27 and F/A-18.

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Interestingly, the Chinese Su-27 variants did not remove them until the J-16. The J-11B and J-15 still use these antennas as the RWR’s goniometric antennas.

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