
..... e la "cipolla" si nota meglio .....

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Ed ecco l'analisi di "Air Power Australia" ..... molto lunga ..... ma densissima di interessanti informazioni .....Fonte: Ares
A Defense Technology Blog (AW&ST)
Required Reading on PAK-FAPosted by Bill Sweetman at 2/16/2010 6:12 AM CST
Air Power Australia has released its analysis of the Sukhoi PAK-FA fighter - and whatever you think of APA's goals and philosophy, it's a remarkable piece of work. It's too content-rich to summarize, but here are a few salient points.
APA (not surprisingly) assesses PAK-FA as superior to any air-combat platform except the F-22. They do note that the rear-aspect RCS features the same compromise design as the F-35, with two additional observations: the Russians don't have to worry about the same kind of dense, high-performance surface-to-air missile threat as the West does, and the prototype seen so far has an interim engine - so the aft-body configuration may not be definitive.
The analysis suggests that the PAK-FA is designed both for short runways and for carrier operations, given wing area, landing gear design and its three-surface aerodynamic configuration. APA also believes that the fighter will have remarkable agility, because its small all-moving vertical fins point to "relaxed directional stability", which in conjunction with 3-D thrust vectoring will open up new parts of the maneuver envelope.
On schedule and risk, APA points to the Russian practice - evident in PAK-FA - of reducing risk by separating engine and airframe development and by sharing technology across multiple platforms. For example, the core avionics and structure technology on PAK-FA are shared with the Su-35S, and the interim 117S engine for the PAK-FA prototypes (and possibly early production aircraft) is shared with the Su-35 series and is flying on a T-10-series flying test bed.
Fonte: Ares
A Defense Technology Blog (AW&ST)
T-50 Paint Job
Posted by Douglas Barrie at 2/17/2010 3:33 AM CST
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Maxim Pyadushkin writes:
Russia's fifth-generation fighter prototype, the Sukhoi T-50, is continuing flight trials. Two more took place from Komsomolsk-on-Amur on February 12 and 13. For the second flight the first T-50 prototype was painted in an air force white-grey-blue camouflage similar to that of the second Su-35 prototype. The aircraft has also been given side-number (Bort) 51.
A Russian defense ministry official says the aircraft will make several more flights from Komsomolsk-on-Amur. In March or April the T-50 is expected to be transferred to the Gromov flight research institute in Zhukovsky, near Moscow, where the test program will continue. The aircraft will also be presented by Sukhoi to top government officials.
(Picture Credit Sukhoi)
Come già annunciato, l'aereo, in occasione del secondo volo, è apparso con una nuova livrea .....
..... degno di nota il fatto che tale livrea non sia dissimile da quella che apparve alcuni anni fa in una rappresentazione artistica resa pubblica da parte della "NPO-Saturn", azienda produttrice dei motori dell'aereo ..... come è degno sopratutto di nota il fatto che nel disegno la configurazione del velivolo non si discosti poi di molto da quella reale .....PAK-FA rendering by NPO Saturn. Unlike the JSF, the stealthy PAK-FA is being designed with air superiority performance and high agility as the primary consideration. To date only speculative renderings have been released, making assessments difficult (Saturn NPO).
kyotoAtr72 ha scritto:secondo è stupendo.
Eppoi è Russo!
Almost Blue ha scritto:No quella è camo per superiorità aerea.
Solo aerei come i cacciabombardieri, che devono difendersi da altri aerei, hanno camo che li confonde (più o meno) con il terreno come le uova degli uccelli che fanno il nido a terra.
Un aereo che fa il caccia da superiorità aerea invece deve confondersi (più o meno) con il cielo circostante: toni dominanti bianco e azzurri vari. In realtà è spreco di vernice: basta farli tutti grigio chiaro.
..... A-10 ha ricevuto inizialmente glaziosa mimetica da campagna schema "Europe one", altlimenti detta "Lizard", con colori a toni di verde e grigio di bellissime ed estese foleste di Europa orientale ,
.....
Bellissimo il Warthog con le "Invasion Stripes"....richelieu ha scritto:
Ci avevamo provato anche noi .......... Hai beccato proprio un B-25 con cannone da 75 mm nel muso. Rinculo a parte, uno ci ha affondato da solo una corvetta giapponese, poi ci hanno rinunciato .....
Da Wikipedia .....
P.108A
In response to a request in November 1942, the P.108A Artigliere "gunship" was developed for anti-shipping duties as an alternative to torpedo bombers. It was armed with a modified high velocity Ansaldo 1941 model (90/53 mm) gun mounted in a redesigned nose. This was considered to provide the best combination of precision and range of all Italian artillery, and in several versions was used as an anti-aircraft and anti-tank gun by the Army and the Navy. To be more effective in its new role, the size of the gun was increased from 90 mm (3.5 in) to 102 mm (4 in), a non-standard Italian artillery calibre, and fired shells weighing 13 kg (30 lb) as opposed to the standard gun's 10 kg (20 lb), with a muzzle velocity of over 600 m/s (1,970 ft/s). This weapon has only been superseded in calibre, on aircraft, by the low velocity 105 mm (4 in) modified M102 howitzer (23 calibres in length) carried on a mobile mounting in the flanks of the AC-130's 3.2 m (10.5 ft) wide fuselage. The gun together with its recoil system weighed 1,500 kg (3,300 lb). Due to it being a re-bored smaller gun, its weight was relatively low for its calibre.
The P.108A was not particularly unusual at the time, as medium bombers such as the North American B-25 Mitchell and even smaller attack-aircraft like the Henschel Hs 129 were fitted with high-velocity 75 mm (2.6 in) guns despite being one or two categories lighter.
The gun was mounted longitudinally in the fuselage centreline, at a depressed angle, and had a very strong recoil action which the 27 tonne (30 ton) airframe was nevertheless able to absorb. The amount of ammunition that could be carried was around 50-60 rounds for the main gun, as well as up to three standard torpedoes or two radio-guided torpedoes (a secret weapon which was never used in combat), and finally the standard defensive weapons in the fuselage and wings. The 102 mm (4 in) gun was intended to be fitted with a ballistic sight with an analogue computer, and a six or 12 round mechanical loader.
Initial modifications were made to MM.24318 which on 16 December 1942 flew to Savona, Villanova d'Albenga airfield. The modifications were completed in February 1943, and testing commenced on 3 March.
Testing of the P.108A was satisfactory, achieving a maximum speed of around 440 km/h (270 mph) due to the more aerodynamic redesigned nose. It flew to Furbara on 19 March, and later to Pisa on 16 April, where it carried out a series of firing trials at altitudes between 1,500 and 4,500 m (4,900 and 14,800 ft) to collect the ballistic data for negative angles of elevation that was required to allow the computing gunsight to be produced. After totalling 24 hr, 40 min of flight and weapons trials, it returned to Albenga. Enthusiasm was high when it was presented as the new official attack machine at Furbara on 22 May, and it was planned to build five further P.108As, as well as convert another five or possibly all P.108s available. But on 29 June, it was decided to produce no more than five aircraft, and in July, the order was further limited to two, and eventually cancelled. On 6 and 8 September, the lone P.108A made other weapons tests over the sea, finally equipped with the S.Giorgio calibration/aiming system.[1] German forces took control of the P.108A and painted it in their insignia, but it was damaged soon afterwards by Allied bombing. Repaired by 7 April 1944, it finally flew to Rechlin where it was probably destroyed in one of the many Allied bombing raids.
Although the P.108A proved to be capable, and fired over 280 shells in testing, the Armistice and the never-ending change of priorities halted its development. The use of such large aircraft in a dangerous anti-ship role was however questionable (at sea level 360 km/h (220 mph) was the best safely achievable), the cost was even greater than standard bombers, and the improved naval anti-aircraft defences (Bofors 40 mm guns, P-F shells, and fire-control radar) led Germany to rely on (relatively) long-range missiles like the Henschel Hs 293 and Fritz X. These were much more effective, as was demonstrated on 9 September 1943, when the Italian Navy was attacked by their ex-allies. The Germans launched a number of missiles against the Italian battleships, sinking the Roma and damaging the Italia, causing over 1,300 deaths. The three armoured decks of RM Roma could withstand hits from battleship-calibre guns, with over 200 mm (7.9 in) thickness overall, so such results were well outside the capabilities of a medium calibre gun, even when air-transported.
Bè, ma tanto ha importanza?... Se le superfici sono controllate tramite FCS a più canali, possiamo ottenere qualsiasi effetto aerodinamico con meno differenzazioni di superfici mobili no?Almost Blue ha scritto: Tornando in tema, guardavo che anche l' F-22 ha i flap, o si può parlare di elevoni (del delta), che "sconfinano" negli equilibratori come nel T-50. O sono gli equilibratori che sconfinano "dentro" l'ala?
Fonte: AviationWeek.com
More Sukhoi T-50s To Fly In Next 12 Months
By Alexey Komarov (Moscow) - Mar 12, 2010
Sukhoi intends to add three more T-50 development aircraft to the test program within the next 12 months, with further details of Russia’s next-generation fighter leaking out from a high-level gathering here.
Russian Prime Minister Vladimir Putin held a cabinet meeting last week on developing the aerospace and defense industry at Sukhoi’s Moscow headquarters. Putin was also shown the T-50-0 static test rig airframe along with a cockpit simulator for Russia’s fifth-generation fighter.
Putin and Sukhoi’s chief, Mikhail Pogosyan, maintain that the T-50 should be ready to enter service with the Russian air force during 2015, to meet its PAK FA fighter requirement. Putin says, however, that “before the jet goes into serial production, it should complete more than 2,000 test flights.”
Given what is already an highly demanding schedule, Pogosyan is quoted in the Russian press as saying: “By the end of 2010 or in early 2011, we must add three more prototypes to the test-flight program.”
Sukhoi executives suggest the second prototype will likely enter testing this year, while the third and fourth prototypes will appear in 2011. The first two will not be fitted with radar or weapon control systems, and will be used primarily for flight performances and major systems evaluations.
Sukhoi designers are trying to compress the T-50 development through the extensive use of specialized system-integration test benches. The development of previous aircraft types was supported with the use of “iron bird” rigs for complex flight control system checks and an “electronic bird” for the avionics package testing, coupled with stationary engineering simulators used for “man-machine” interface development.
For the T-50, in addition to these tools, Sukhoi seems to have built an additional prototype not intended for flights—the so-called T-50-KNS. This airframe is fitted with operational systems, equipment and engines.
Sukhoi’s production facility in Komsomolsk has used the T-50-KNS for checking the use of new manufacturing technologies, while designers were able to examine all wiring, ducting, equipment and engine installation within the actual dimensions of the aircraft. The T-50-KNS and other test-bench checks ensured the initial flights of the T-50-1 prototype. Pogosyan says a 24-deg. angle of attack was reached on the T-50-1 after only three flights.
The company’s T-50 chief designer, Alexander Davidenko, says almost 70% of the outer surface— 25% of the aircraft’s empty weight—consists of composites . Introduction of the materials allowed the number of structural parts to be cut four-fold compared with the Su-27 Flanker.
As for the cockpit, Davidenko notes that the aircraft’s avionics use smart digital systems to reduce pilot workload in terms of flying and combat operations.
The T-50’s digital flight control system is around 30% lighter than the Su-27’s and can reconfigure in case of failure or combat damage, says Pogosyan.
The T-50 will be tested and enter air force service, with the engine being used for the “first phase of development.” The engine is already installed in the prototype, says Pogosyan. “This is a completely new engine,” he contends, “developed especially for this aircraft. It has a modern design, which is able to ensure the T-50’s long-term operation.” A completely new powerplant could be developed in the next 10-12 years, he adds.
In April, the T-50 flight-test program likely will shift to the Gromov Flight Test Research Institute in Zhukovsky, near Moscow, according to company executives.
The T-50 development is being viewed by the government as a confirmation of the industry’s ability to meet the military’s future equipment needs and to revamp its present inventory.
In 2008, Moscow began to increase procurement of combat aircraft and systems, in an attempt to roll back more than a decade of neglect and stagnation. Contracts to supply the air force with 130 combat aircraft were signed in 2008 and 2009. In 2010, 27 aircraft, more than 50 helicopters and five S-400 missile system divisions will be purchased for the army.
The nation’s armament program calls for the delivery of more than 1,500 aircraft and helicopters and about 200 air defense systems through 2020. At least 80% of the air force procurement and 75% of the air defense systems will be new hardware.
Discussing industry priorities, Putin stresses that the sector had received substantial support from the government and should now concentrate on efficiency. It must fulfill its obligations in terms of deliveries and weapon-cost parameters.
Putin also reinforced Russian ambitions to develop a next-generation strategic strike aircraft—the PAK DA—as well as a next-generation surface-to-air missile system.
The engineering simulator of the T-50 cockpit at Sukhoi’s Moscow site demonstrates the general approach to the new fighter’s controls and displays layout.
Credit: SUKHOI
Sukhoi assembled the T-50-0 airframe in mid-2009. This is a static airframe rig used in the development program. Credit: RUSSIAN GOVERNMENT
Fonte: RIA Novosti
Russia New Russian fighter to make 2,000 flights before production starts
21:43 - 01/03/2010
Russia's fifth-generation jet fighter, the T-50, is to undergo more than 2,000 flight tests before full-scale production starts, Prime Minister Vladimir Putin said Monday.
"Before the jet goes into production, it should complete over 2,000 test flights," Putin said.
He also said now that Russia had a fifth-generation prototype fighter, it should start working on a new-generation long-range strategic bomber that he described as "an airborne missile-carrier."
A source at the Sukhoi aircraft maker said earlier in the day the T-50 would start on a standard flight test program in April, adding it would take "several years" to complete the testing program.
A prototype of the fighter made a 47-minute maiden flight in Russia's Far East on January 29.
Russia has been developing its newest fighter since the 1990s. The current prototype was designed by the Sukhoi design bureau and built at a plant in Komsomolsk-on-Amur, in Russia's Far East.
It will be delivered to the Russian Air Force from 2015 onwards.
Russian officials have already hailed the fighter as "a unique warplane" that combines the capabilities of an air superiority fighter and attack aircraft.
The Tupolev aircraft maker said last year that a new-generation strategic bomber would be developed by 2017, while production should start in 2020 to 2025.
However, Maj. Gen. Anatoly Zhikharev, commander of Russia's strategic aviation said a new strategic bomber, which would use stealth technology, was expected to enter service in 2025-2030.
The new bomber will replace three aircraft currently in service with Russia's strategic aviation, the Tu-95MC Bear and Tu-160 Blackjack strategic bombers, introduced in 1956 and 1980, respectively, and Tu-22M3 Backfire long-range bombers, which first flew in 1972.
Risulterebbe dunque che l'aereo è leggermente più piccolo (circa un metro e mezzo più corto) del predecessore .....Photo taken during first-flight ceremonies for the T-50 (left)—Sukhoi’s stealth fighter prototype—shows the size and design differences between the sole Su-35UB two-seat trainer version of the Flanker multi-role fighter and the T-50 with its low-observable design. The 72-ft.-long, 48-ft.-wingspan Su-35UB has a rear-facing, tailcone-mounted radar and can carry a combat load of 3,276 gal. of fuel. The T-50 is 66.9 ft. long with a 48.2-ft. wingspan. It is 17.4 ft. high.
quotoG-BOAB ha scritto:Esteticamente mi piace di più dell'Eurofighter, non so come caratteristiche ma come linea è più bello.
Fonte: AviationWeek.com
Rivals Join For Next Stage Of PAK FA Engine
By Maxim Pyadushkin
Moscow (Apr 28, 2010)
Russia’s two engine manufacturers are to collaborate on the next stage of engine development for the Sukhoi T-50 fifth-generation fighter after years of going head-to-head as rivals.
The Moscow-based Salut and United Engine Corp. (UEC) have agreed to work jointly on the so-called second-stage engine for the T-50 being developed to meet the air force’s PAK FA requirement. NPO Saturn, now part of UEC, and Salut have been competing for this program for several years, with designs known as Eniseysk-A and Eniseysk-B, respectively.
According to senior UEC executives, the workshare on the engine to replace the T-50’s current Saturn 117 will slightly favor the corporation: UEC will have 54%, and Salut the remainder.
The decision to collaborate is driven at least in part by the likely merger of the two engine producers.
The timescale for development of the powerplant remains uncertain, as the manufacturers apparently are waiting for the military to set its requirements. In March, however, Sukhoi chief Mikhail Pogosyan said the T-50 would enter service with the air force powered by the Saturn 117. He indicated development of the second-stage engine could take another decade.
The 117 was developed by Rybinsk-based Saturn as an uprated modification of the Al-31F engine. The 29,000-lb.-thrust 117 is used on the Su-35 derivative of the Su-27 Flanker. The version fitted to the T-50 prototypes is thought to produce 30,000 lb. thrust and also comes with a new full-authority digital engine control unit.
Salut’s Eniseysk-B design was recommended by the ministry’s tender commission, according to CEO Yuri Eliseev. Under the original program schedule, the two contenders were to have demonstrated the first elements of the engine by November 2008.
Discussing Eniyesk-A, Saturn CEO Ilya Fyodorov, who also is a head of the PAK FA engine program, says the company has studied some new technologies that could be applied to the development of a powerplant for the series production PAK FA in the next in 2-3 years.
The so-called third stage of engine development, a new design, was initially planned to begin at the end of 2009, but this has yet to be announced. “Nevertheless, we have completed the conceptual design of the fifth-generation engine,” says Eliseev.
He also says that in order to minimize technical risks, Salut is already testing the element of the future engine during modernization of the Al-31F series powerplants.
The first stage of this modernization, the AL-31FM1 with a new compressor, was shown at the Engines 2010 exhibition here this month. This engine has a thrust of 27,000 lb., interval between overhauls of 1,000 hr. and service life of 2,000 hr., compared to 25,000 lb. thrust, 500 hr. between overhauls and 1,500 hr. of service life for the serial AL-31F. According to Eliseev, the AL-31FM1 already powers modernized Su-27SM Russian air force fighters. He adds that it has also been approved for installation on Su-34 bombers.
A further development, the AL-31FM2, is being bench-tested, according to the Salut CEO. This engine has a new combustor chamber and turbine and reached 29,200 lb. thrust. “If we receive funding, we are ready to start serial trials of this engine in the next year,” says Eliseev.
Also on display at the exhibition was a new KND-924-3 low-pressure compressor that, together with a new six-stage high-pressure compressor, will be used for the AL-31FM3 modification. This version is expected to have a thrust of about 30,000 lb. Eliseev stresses that all the modifications retain the size of the serial Al-31F and can be installed in versions of the Su-27 in service.
The cooperation between Salut and UEC is underpinned by the anticipated merger between the two manufacturers. Eliseev was appointed deputy head of the corporation two weeks ago. According to UEC executives, the merger with Salut will start after the latter completes its consolidation with Omsk Baranov Production Co.
sochmer ha scritto:ma quanto è figo????![]()
la sai già la sua rispostaPeretola ha scritto:sochmer ha scritto:ma quanto è figo????![]()
Continua a non piacermi: troppo F22 e troppo poco russo....Lo so, sono esigente!![]()
Paolino, ti invoco! Dì la tua!
Ma qua è più complicato! Gli chiedo un'opinione...se lo ritiene brutto non può rispondermi "eppoi è russo!"sochmer ha scritto:la sai già la sua rispostaPeretola ha scritto:sochmer ha scritto:ma quanto è figo????![]()
Continua a non piacermi: troppo F22 e troppo poco russo....Lo so, sono esigente!![]()
Paolino, ti invoco! Dì la tua!
Allora nonmi conosci abbastanzaPeretola ha scritto:Ma qua è più complicato! Gli chiedo un'opinione...se lo ritiene brutto non può rispondermi "eppoi è russo!"sochmer ha scritto:la sai già la sua rispostaPeretola ha scritto:sochmer ha scritto:ma quanto è figo????![]()
Continua a non piacermi: troppo F22 e troppo poco russo....Lo so, sono esigente!![]()
Paolino, ti invoco! Dì la tua!![]()