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    Su-57 Stealth Fighter: News #6

    kvs
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    Post  kvs on Sun Aug 16, 2020 5:50 pm

    The nose shape change may also be for better air flow. Sharp surface transitions produce air flow disruption. This may be a
    small issue but less crap affecting maneuverability is better.

    Isos
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    Post  Isos on Sun Aug 16, 2020 6:01 pm

    It seems to he made of wood material. Maybe it's just to hide the radar. You can see the red thing holding it.

    None of the prototype flew with it. Why would they put put it on serial jets when they could just mount it on one of the 10 already build test prototypes and see how it goes.

    They already crashed the first serial su-57. I doubt they will change the design this way without in flight tests. It's an unstable design and the fly-by-wire system must be tested everytime they change something on it.

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    Hole
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    Post  Hole on Sun Aug 16, 2020 8:02 pm

    Su-57 Stealth Fighter: News #6 - Page 12 27053310

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    Isos
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    Post  Isos on Sun Aug 16, 2020 8:21 pm

    How do you call the mini wing near the cockpit ? It seems different too.

    The top glass cockpit is black. RAM coating on it or just manufacturing process ?

    The little aeration hole on the back under the aileron is also different which was already made in different version on the prototypes.
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    Post  jaguar_br on Sun Aug 16, 2020 9:44 pm

    Isos wrote:How do you call the mini wing near the cockpit ? It seems different too.

    The top glass cockpit is black. RAM coating on it or just manufacturing process ?

    The little aeration hole on the back under the aileron is also different which was already made in different version on the prototypes.

    The opaque glass is probably a type of adhesive film, coming from the factory and removed later. The HUD looks like the 2019 maks model ...
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    Post  JohninMK on Sun Aug 16, 2020 10:05 pm

    The aileron being down stopped any nosey cameras having a view up the inlet. As someone wrote somewhere, the CIA would have given someone's right arm for pictures like this 20-30 years ago.
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    Post  LMFS on Sun Aug 16, 2020 10:16 pm

    Ca. 9:00 onwards, many great views of the production plane and info about Shoigu's visit:

    https://www.youtube.com/watch?v=6fjnlOoTz5g

    Isos wrote:How do you call the mini wing near the cockpit ?

    LEVCON (Leading Edge Vortex Conditioner), though it works rather as a LE flap...
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    Post  LMFS on Wed Aug 19, 2020 12:44 pm

    Izvestia says the first Su-57s will go to the 6th army of the air force in the Western military district:

    https://iz.ru/1049791/anton-lavrov-roman-kretcul/pogranichnoe-pokolenie-pervye-su-57-otpraviat-v-zapadnyi-voennyi-okrug

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    Post  thegopnik on Sun Aug 23, 2020 1:51 am

    https://tass.com/defense/1191807

    "The export version of Russia’s Su-57 fifth-generation fighter will be on display for the first time at the Army-2020 international military and technical forum and the plane will also take part in the forum’s flight demonstration program, the press office of the state hi-tech corporation Rostec announced on Thursday.

    "The Su-57E export version of the fifth-generation fighter will be demonstrated for the first time at the Army forum as part of its static show and will also take to the skies under the flight program," Rostec said."


    This army expo makes me feel like a child that cant wait to open his Christmas presents. I hope for a wonderful display of some military projects that have not yet been revealed.
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    Post  LMFS on Tue Aug 25, 2020 9:29 pm

    The thing flies and turns like a R/C scale model respekt

    https://vk.com/wall-140312885_268915
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    Post  wilhelm on Thu Aug 27, 2020 6:44 am


    Su-57 Stealth Fighter: News #6 - Page 12 7-su-510
    Su-57 Stealth Fighter: News #6 - Page 12 Jlz7sa10

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    Isos
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    Post  Isos on Thu Aug 27, 2020 10:23 am

    Still no images of r77M and other air to air missiles ?
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    Post  Stealthflanker on Thu Aug 27, 2020 12:09 pm

    Isos wrote:Still no images of r77M and other air to air missiles ?

    R-77M ? The Ramjet one ?
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    Post  Isos on Thu Aug 27, 2020 12:14 pm

    Stealthflanker wrote:
    Isos wrote:Still no images of r77M and other air to air missiles ?

    R-77M ? The Ramjet one ?

    The one being developed for su-57 with 200km range. It's not a ramjet but dual pulse rocket motor.
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    Post  wilhelm on Fri Aug 28, 2020 2:25 am

    Both nozzlesSu-57 Stealth Fighter: News #6 - Page 12 20200811

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    Post  GarryB on Fri Aug 28, 2020 11:24 am

    R-77PD is the ramjet model, R-77M is the new solid rocket missile to replace the R-77-1 currently standard service with 110km range.

    R-77M is supposed to offer double the range.

    Nice saw tooth engine exhausts in that image below the one with the Kh-35 and Kh-38 Wilhelm... Smile (post 286)
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    Post  LMFS on Fri Aug 28, 2020 1:43 pm

    The question is whether those nozzles mean izd. 30 or can they be installed on existing izd. 117? Showing them on a plane which should be the export version gives a hint that they could opt for the second option IMHO.
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    william.boutros

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    Post  william.boutros on Fri Aug 28, 2020 3:57 pm

    Hole wrote:Su-57 Stealth Fighter: News #6 - Page 12 27053310
    Manufacturing seems much improved. Let us see whether they will be capable of significantly improving Su-57's radars detection ranges of opposing stealth aircraft.
    Improved missiles are making it more difficult for fighters to dodge them.
    Su-57 concept of dodging an opponent first spot first fire missile and then outmaneuvering the opponent aircraft in a dogfight is becoming difficult. It is no longer mig-21 vs f-4.
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    Post  william.boutros on Fri Aug 28, 2020 4:19 pm

    Isos wrote:Su-57 Stealth Fighter: News #6 - Page 12 Eegoh010

    This image settles that the fans will be visible and that blockers need to be installed.
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    Post  Arrow on Fri Aug 28, 2020 4:29 pm

    Only a small part of the fan is visible. The same is true of the YF 23 design which was more stealth than the F 22.
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    Post  LMFS on Fri Aug 28, 2020 4:47 pm

    william.boutros wrote:Let us see whether they will be capable of significantly improving Su-57's radars detection ranges of opposing stealth aircraft.
    Improved missiles are making it more difficult for fighters to dodge them.
    Su-57 concept of dodging an opponent first spot first fire missile and then outmaneuvering the opponent aircraft in a dogfight is becoming difficult. It is no longer mig-21 vs f-4.

    You talk as if Western Internet Bubble and their condescending anti Su-57 drivel was right to start with... such technical limitations and hopeless operational concepts derived from them only exist in the minds of some guys that have no clue and worse no interest on how Russian military (or for that matter, any other) actually work...

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    Post  magnumcromagnon on Fri Aug 28, 2020 8:47 pm

    Su-57 Stealth Fighter: News #6 - Page 12 EgL9m8xWsAAsu-U?format=jpg&name=medium

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    kvs
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    Post  kvs on Fri Aug 28, 2020 8:58 pm

    magnumcromagnon wrote:Su-57 Stealth Fighter: News #6 - Page 12 EgL9m8xWsAAsu-U?format=jpg&name=medium

    Note the deliberate angle of the engines and their spacing. This ain't no F-15. The use of two engines is leveraged to the max
    for maneuverability.

    AA missiles have limitations and maneuverability is actually worth something. It is not for dog fights only.

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    Post  Big_Gazza on Sat Aug 29, 2020 1:54 am

    william.boutros wrote:This image settles that the fans will be visible and that blockers need to be installed.

    No, it doesn't. It simply shows that part of the outline of the exhaust duct can be seen through the intakes at a viewing angle off the central axis. Where are the compressor blades located when the engine is installed?

    The Su-57 ducts are not serpentine like the F-22 (because that introduces too many performance compromises) but this constant BS about her blades being visible in the frontal aspect is just nonsense.
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    Post  kvs on Sat Aug 29, 2020 2:16 am

    william.boutros wrote:
    Isos wrote:Su-57 Stealth Fighter: News #6 - Page 12 Eegoh010

    This image settles that the fans will be visible and that blockers need to be installed.

    Only if the radar is located above the plane of the jet. For any ground radar they are invisible. As for being detected in
    the air by other jets, that was never the objective of stealth.


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