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Sukhoi Su-57 - discussione ufficiale

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Il pod è doppiamente un’eresia perché sull’F-22 sarebbe stato un’aggiunta legata a un’estensione di capacità per un velivolo nato come caccia puro, mentre per il Su-57 era chiaro fin dall’inizio un utilizzo polivalente della macchina.

Visto che il pod è stato realizzato per questo velivolo, forse avrebbero dovuto sprecarsi di più e realizzare qualcosa di analogo al pod cannone per l’F-35B e C, cioè qualcosa di conforme e allineato con i pannelli di fusoliera.

Il problema è che invece che piazzarlo sotto il muso (dove indiscutibilmente c’era poco spazio per un pod, ma eventualmente solo per un sistema integrato stile F-35), hanno usato uno dei due punti d’attacco presenti sotto le prese d’aria (tra l’altro apparentemente leggermente spostato verso l’esterno con l'evoluzione del velivolo).

 2ns2yab.jpg

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Stando così le cose, forse anche per dare il massimo campo visivo al pacco sensori durante una virata a destra, lo hanno distanziato dal velivolo dotandolo di un pilone.  A quel punto non si sono sprecati manco a sfaccettare il corpo del pod e l’insulto alla RCS era completo.

Sul Mig 29/35, sebbene senza pretesa di stealthness, qualcosa di simile a quello a cui mi riferisco l'avevano pensato.

MiG35pod.jpg

Assieme ad altri orrori...

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Beh, il flir sotto la presa d'aria sinistra è già più carino...come lo sono gli ipersostentatori Kruger sulle estensioni di bordo d'attacco della versione navale.

2cmlu1i.jpg

Fatto sta che il risultato sul Su-57 è abbastanza insensato, essendo la missione AS quella per la quale la stealthness andrebbe maggiormente tutelata.

Considerato però il diverso approccio russo e l'accento posto sulle prestazioni piuttosto che sull'abbattimento della RCS, è da vedere quanto infilare l'armamento in stiva sia legato alla steathness e quanto all'avere delle linee aerodinamicamente pulite.

Se il problema del contenimento della RCS non fosse stato pressante nelle scelte tecniche fatte (e il sospetto che non lo sia non è cosa di oggi...) allora l'insulto del pod sarebbe già più comprensibile.

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Si delinea il programma di acquisti ...

Quote

With previous agreements taken into account, the Russian defense ministry shall receive 15 Sukhoi Su-57 fifth-generation fighters. 
“We find this airplane as state-of-the-art," Krivoruchko said.
"We shall receive 15 such aircraft new from the factory, with the first one due next year. 
This aircraft is a design success as it surpasses all of its foreign analogues, has undergone all sorts of trials, and gained some combat experience.” 
The initial production batch will be followed by shipments of more aircraft in improved versions that are now in development. 
In particular, the customer expects an upgraded variant, now undergoing flights trials, to become available in quantities from 2023.

Fonte ... https://www.ainonline.com/aviation-news/defense/2018-08-27/su-57-and-mig-35-land-russian-orders-during-army-2018

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Al di là delle sparate commerciali (della serie fateveli piacere un po' zoppi perchè l'India è una tirapacchi e speriamo che nel 2023 vada meglio...) resta una piccola preserie senza i motori definitivi e priva di diversi sistemi e la cosa non desta manco particolare stupore, visto che ci vogliono mettere dentro di tutto e sarà da sputar sangue per ottenere una decente sensor fusion nel corso degli anni venti.

Qui sotto un’immagine del 509, uno degli ultimi prototipi (vale la pena cliccare sull'immagine e ingrandirla per vedere i dettagli).

Anche questo, fino a diverse indicazioni ufficiali, si direbbe aver bisogno del famigerato pod.

Magari, invece di tante belle sparate da salone, sarebbe bello che dopo anni si decidessero dire cosa hanno infilato dentro le prese d’aria (le rampe mobili ci sono? Perchè par proprio di si...) e le carenature ai loro lati (ci sono o no questi benedetti missili AA?).

0_1558d5_c962781b_orig

Edited by Flaggy

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Da questa immagine sembra anche che non sia migliorata nemmeno la cura degli assemblaggi tra i vari pannelli e rivetteria varia molto radar friendly...

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Acquisti si ... ma col contagocce ...

Russia Places First Su-57 Order ...

Piotr Butowski - AW&ST (Sept. 4, 2018)

After 20 years in development - and more than eight years after the first flight of the Sukhoi Su-57 - Russia has placed its first order for the highly maneuverable stealth fighter. 
The order appears to be small, with the Kremlin’s original goals scaled back amid multiple aircraft redesigns.
The Russian defense ministry ordered the fifth-generation fighters and lightweight fourth-plus-generation MiG-35 fighters on Aug. 22 during the Army 2018 Exhibition at Kubinka outside Moscow. 
Deputy Defense Minister for Acquisitions Alexey Krivoruchko and United Aircraft Corp. President Yuri Slyusar signed the contract but released no details.
Krivoruchko said only that “the ministry of defense of the Russian Federation already in the short-term plans to receive 15 production Su-57s,” and “the first airplane will enter the Aerospace Forces in 2019.”
According to industry officials, the firm order is for two Su-57 fighters initially, and orders for the remaining 13 aircraft will be signed in the coming years.
The other contract is for two single-seat MiG-35S and four two-seat MiG-35UB fighters. 
The defense ministry expects to order about 20 airplanes in all. 
Slyusar stresses that the Su-57s will not be used for further tests but will be delivered to military units. 
The first fighters will supposedly be handed over to the crew conversion center in Lipetsk.
The number of fighters is small, particularly in comparison to the first order Russia placed for Su-35s in 2009. 
At that time, the military bought 48 aircraft and proceeded to order another 50 Su-35s. 
It is also tiny relative to the 36 Su-30SM fighter order that is anticipated at the end of 2018.
The number reflects a more muted outlook by the Russian government than eight years ago, too, when the T-50 prototype aircraft of the Su-57 made its first flight.
In February 2010, shortly after that maiden flight, then-Prime Minister Vladimir Putin said that in 2013, the first fighters would be delivered to the pilot training center at Lipetsk and that by 2015, full-scale production would be launched. 
The Russian State Armament Program called for the purchase of 60 Su-57 fighters by 2020.
But four years later, after Russia’s economic crisis, the nation’s expectations for the program were tempered.
In March 2015, then-Deputy Minister of Defense Yuri Borisov revealed a new concept: to purchase fewer Su-57s in favor of lower-cost Su-30SM and Su-35 fighters, given that Russian military pilots were happy with the Su-35’s performance.
The idea was to keep the Su-57 in reserve and launch large-scale production once the Su-30 and Su-35 were proven inferior to rival aircraft. 
In June 2018, Borisov was promoted from deputy defense minister to deputy prime minister and curator of the defense industry. 
With him in charge, the plan has not changed.
But the true reasons for the reduction of planned Su-57 purchases can be traced to the technical shortcomings of its first version.
More than eight years have passed since the T-50’s Jan. 29, 2010, first flight from Komsomolsk-on-Amur in the Far East. 
Ten flying prototypes are currently undergoing tests. 
According to Sukhoi, “2,050 test flights were made under the PAK FA program” by Dec. 31, 2017.
In addition to the trials at industry’s test center in Zhukovsky, the T-50 prototypes have been undergoing an evaluation conducted by military pilots at the defense ministry’s test center at Akhtubinsk since 2014. 
The main focus of the trials at Akhtubinsk is evaluation of the fighter’s armament.
Nobody in Russia would talk openly about the problems of the Su-57 program. However, signs of trouble abound. 
After years of testing, largely without financial restrictions, the aircraft completed the so-called “first stage of state evaluation” only in late 2017. 
That stage is, in fact, not a very advanced level of testing: It concludes with the acceptance of the aircraft as a flying vehicle. 
Only the completion of the second stage, when mission systems and armaments are tested, allows the aircraft to officially enter the inventory. 
According to Sukhoi: “In 2018, the trials are continued under the second stage of state evaluation, with planned completion in 2019.”
To complicate matters, the aircraft was redesigned during that stage. 
Five aircraft made since 2016 differ from the earlier aircraft; the new airframe has a reinforced inner structure. 
The aft fuselage section (housing the electronic warfare equipment) was made longer, and the circumferences of the aft lower fuselage, some doors and hatches, as well as wingtips have been modified. 
Fifteen first-production aircraft will be made in that configuration.
However, the aircraft is subsequently undergoing another upgrade - retrofitting with new-generation Izdeliye (product) 30 engines. 
On Dec. 5, 2017, the T50-2LL (Letayushchaya Laboratoriya, flying testbed), with the port engine replaced by a prototype of the Izdeliye 30, performed its first flight. 
Krivoruchko says Russia’s defense ministry expects deliveries of airplanes with new engines in 2023.
The current AL-41F-1 (Izdeliye 117) engine for the Su-57 is a deep modernization of the fourth-generation AL-31F for the Flanker fighter family, described as a “generation 5-minus” by Evgeniy Marchukov, the aircraft’s designer general. 
The Izdeliye 30, classified by Marchukov as a “generation 5-plus,” offers more thrust, lighter weight, a smaller number of elements and lower operating costs. 
The developer says the new engine will be “17-18% more effective.” 
If it refers to full thrust, the new Izdeliye 30 engine should provide 17 tons, compared to 14.5 tons for AL-41F-1. 
The engine’s dry weight is estimated at 1,450 kg (3,200 lb.), compared to 1,600 kg for AL-41F-1. 
Thanks to glass-fiber plastic inlet guide vanes, the new engine fan is planned to have much a smaller radar cross-section in the front view.
The Su-57 is not formally being offered for export yet; the only international version is the Russian-Indian Perspective Multirole Fighter (PMF), in India commonly named the Fifth-Generation Fighter Aircraft. 
Preliminary design of the PMF, or Type 79L, jointly developed by Sukhoi and Hindustan Aeronautics Ltd. of India, was accepted in June 2013. 
However, the next contract covering the construction and evaluation of prototypes has not been signed. 
Indian media repeatedly report that India is withdrawing from the program; but Slyusar says that “negotiations with India continue.” 
He adds that the Su-57 will be “significantly cheaper” than the U.S. F-22 and F-35 fighters (both manufactured by Lockheed Martin), without providing any numbers, however.
During the signing ceremony, Slyusar said the Su-57 “will become the basis of the whole family of airplanes, just as earlier the Su-27 became the basis for creation of the family of modern and demanded fighters.”

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In Siria ... В Минобороны рассказали о боевом применении Су-57 в Сирии ...

 

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Teoricamente ha lanciato sicuro un KH-59Mk2, se poi ha fatto altro e dove ha lanciato il suddetto, non si sa

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Secondo RuAf addirittura le azioni in Siria sono state "molteplici" (in 2 gg..............), ma l'unico documento e' questo, mostrato nel meeting ufficiale. C'e' un mio post in precedenza.

Non saprei se la scelta cromatica e' stata fatta per motivi di riprese o meno e dove ufficialmente si sia svolta l'operazione.

Certo che la permanenza e' stata veramente breve...

 

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Nuova combinazione di volo anti-G per i piloti dei Su-57 ...

Quote

Moscou, avec l’arrivée progressive du nouvel avion de combat Sukhoi Su-57 au sein de la Force aérienne et spatiale russe, il fallait également prévoir une nouvelle combinaison dotée d’un équipement anti-g de nouvelle génération.
Les nouvelles combinaisons anti-g destinées aux pilotes de chasseurs russes Su-57 sont prêtes pour les essais en vol et devraient être livrées à partir de 2019, selon le responsable de l'entreprise de recherche et de production Zvezda.

Fonte: psk.blog.24heures.ch ... Nouvelle tenue anti-G pour les pilotes du Su-57 ! ...

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Dunque vediamo un po'meglio la foto recentemente diffusa: è più evidente il contorsionismo per garantire che nella metà superiore le pareti laterali del condotto delle prese d'aria siano verticali e parallele fra loro e c'è una bella e piuttosto netta linea sulla parete superiore. Dunque ce le abbiamo queste benedette rampe mobili e prese d'aria a geometria variabile?

 

O6efd4O.jpg

Piuttosto netta anche la linea a demarcare il contorno di un portello sui famigerati rigonfiamenti ai lati delle prese d'aria. E' qualcosa fatto per aprirsi piuttosto spesso, tranne evidentemente quando nei paraggi c'è una macchiana fotografica a mostrarci un eventuale missile dentro...

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In questa foto non riesco a distinguere il pilota, quella fascia verde è la visiera del casco?

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1 ora fa, nsauro ha scritto:

In questa foto non riesco a distinguere il pilota, quella fascia verde è la visiera del casco?

Head Up Display ...

t5020146.jpg

Edited by TT-1 Pinto

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Putin in visita al centro sperimentale di Akhtubinsk ... occhio alla scorta dell'aereo presidenziale ... 👁️‍🗨️

 

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