MiG-25PDS/RBV/RBT/RU/PU Foxbat [Déclassé...Reloaded !]

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c'est pas l'arme qui tue mais l'être humaine qui tir sur la gâchette

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lamine a écrit :Mig-25PD

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bodolino a écrit :La photo prise en Ukraine
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foxbat250 a écrit :Image
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T800 a écrit :5eme ERGE d'Ain Oussera ( Escadre de Reconnaissance et de Guerre Electronique)

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foxbat250 a écrit :
anzar a écrit :Non le R-40 a raté sa cible :!: Les Foxbats irakiens ont abattu un F/A-18 (sûr et certain) et peut être un F15C mais à plusieurs reprises ils ont pu échapper à des F-15 et à des F-16 qui les avaient poursuivit.
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Source :aircraft Military Fall 1998
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T800 a écrit :Image
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je fait allusion au tristement célèbre Victor Belenko , pilote de Mig 25 Soviétique qui a fait defection a bord se son monoplace en septembre 1976 en atterrissant sur la base japonaise de Hakodate.
The MiG was disassembled, examined, and returned to the USSR in thirty crates. Belenko had brought with him the pilot's manual for the MiG-25 "Foxbat," expecting to assist American pilots in evaluating and testing the aircraft. However, the Japanese government only allowed the US to examine the plane and do ground tests of the radar and engines


:arrow: http://en.wikipedia.org/wiki/Viktor_Belenko
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Re: MiG-25PD/PDS/RB/RBSh/PU

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T800 a écrit :Image
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gizmondo a écrit :une fusée SATURNE5 mieux connu sous le nom de R-40, trouvé dans un coin à la JPO de BLIDA
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Albatros a écrit :quelques précisions :

Description
Le R-40 est le plus grand missile air-air du monde. C'est un missile air-air à longue portée, celle-ci avoisine 60 km malgré le poids le l'engin de plus de 450 kg, ce qui est peu comparé à celle du missile R-33. Le Acridest muni d'une ogive de 70 kg d'explosifs le rendant capable de pulvériser les gros bombardiers contre qui il devait être utilisé. Le missile mesure 622 cm (version guidée par radar) ou 598 cm de long (version guidée par infrarouge) pour 31 cm de diamètre.


Service opérationnel
Le missile est entré en service notamment dans l'armée soviétique avec pour plateforme de lancement les chasseurs MiG-25 Foxbat qui en emportaient 4 au total: 2 R-40R et 2 R-40T. Il équipe également les chasseurs MiG-31 (2 R-40T, un sous chaque aile).

Les chasseurs russes n'ont pas eu à tirer des R-40, en revanche il fut utilisé par d'autres pays dont l'Irak et probablement la Syrie et la Libye. Les MiG-25 irakiens ont réussi à abattre un F/A-18C américain en 1991 et un drone de reconnaissance MQ-1 Predator en 2002.


Variantes
Les 2 principales variantes du R-40 Acrid sont :

le R-40R, la version à guidage radar semi-actif
le R-40T, la version à guidage infrarouge

source Wikipedia
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TETESBRULEES a écrit :qu'en pensez-vous?
Alors que, la semaine dernière, les avions russes sont venus chatouiller les défenses aériennes britannique et norvégienne (lire les notes précédentes), un récent et excellent petit livre consacré au Mirage F1 nous replonge dans l'ambiance de la guerre froide.

Au détour d'un chapitre consacré aux « emports du Mirage F1C », l'auteur Fréderic Lert – bien connu de tous les fanas d'aviation – rapporte des faits peu connus.

Au début des années 70, l'apparition du MiG 25, « boulet de canon soviétique, volant à plus de Mach 2,5 et 60000 pieds », donne des sueurs froides à l'Otan. En France, « c'est un catalyseur puissant dans le développement du missile Super 530F » qui équipera le Mirage F1.

Faute de MiG 25 pour s'entraîner, la chasse française va tester ses procédures face aux Mirage IV et, parfois, aux SR-71 américains basés en Grande-Bretagne.

«Lancé à Mach 2 et plus de 50000 pieds, le Mirage IV fait une cible difficile à atteindre pour la patrouille de F1C lancée contre lui, écrit Fréderic Lert. Les intercepteurs plafonnent à Mach 1,8 et 45000 pieds. Pour le pilote de l'intercepteur, la plus grosse difficulté tient à l'accrochage du plot radar pour verrouiller le tir. La vitesse de rapprochement est telle que le plot traverse le petit écran du radar en dix secondes. Il faut du doigté... »

A Orange (Vaucluse), les pilotes de la 5 ont eu à tenter d'intercepter « à plusieurs reprises » des SR-71 américains. « L'avion noir traverse la France du Nord vers le Sud à Mach 2,8. La seule possibilité pour l'intercepter est de faire décoller deux avions d'Orange au moment où l'appareil aborde les côtes françaises du côté de Dieppe ! (...) La fenêtre de tir est extrêmement étroite et ne dépasse pas quelques secondes. Dans les faits, il ne semble pas que les F1C aient jamais réussi à « tuer » un Blackbird », raconte Fréderic Lert.

A l'époque, des « rumeurs » signalaient des vols de MiG 25 sur la France en provenance d'Afrique du Nord. Trente ans plus tard, aucune information fiable n'a jamais filtrée.


Fréderic Lert « Mirage F1 » (tome 1), Histoire et Collections 2007, 14,95 euros.

Rédigé le 22/07/2007 à 15:10 | Lien permanent
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T800 a écrit :FOXBAT sur l'Atlantique
Algerian Role

The Algerians were monitoring the developments in West Sahara with increasing concerns. Officially, they were not involved in the war. In-officially, they were supporting the POLISARIO with bases, weapons, and equipment to extension. Although the Algerian armed forces were not permitted to actively support the ALPS by any means, the Algerian assistance enabled the Sahrouis to become as successful, as they could always retreat into save bases behind the Algerian border, while the Moroccan bases – even those deeper behind the front - were always under a threat, and the Moroccans were not in a position to attack into Algeria without risking a war they could not win.

Frequent reports about the Algerian Air Force (QJJ) taking part in this war – at least with the help of its air defense units (foremost SAMs) – were therefore not truth, just like rumors that at some time even the Spanish became directly involved in the war – on Moroccan side, and by attacking the Algerians. The Algerians rather equipped and helped train the Sahrouis with different heavy units instead of using these directly against the Moroccans. Simultaneously, it is truth only that during the 1980s and again in the early 1990s the MiG-25RBs of the QJJ operated along the Spanish airspace over the Mediterranean – a move that certainly caused considerable consternation in Spain. The reasons for these flights remain unknown, but ever since the Spanish Air Force (EdA) took steps to improve its capabilities to counter such potential targets like high-flying MiG-25s.

Of course, time and again the QJL also took some steps in order to be better capable of facing the tense situation along its western and southern borders. During the 1970s, it had only a squadron of MiG-17s stationed at Tindouf AB, which is near the West Saharn border. But, when the war intensified also a squadron of MiG-21s was sent to the same air base. This unit held two fighters on permanent alert at an dispersal site near Tindouf. The idea in the case of an eventual penetration of the Algerian airspace by Moroccan aircraft was to scramble two MiG-17s and then use them as baits, which would drag the intruders in front of two MiG-21s. The QJJ pilots never came so far to try this idea out, as – as soon as the Moroccans detected the arrival of MiG-21s in the area – the FARM stopped any flights along the border. An Algerian Air Force officer observed:

- We play some very interesting “mind-games” with Moroccans time and again, and it’s there that we can really appreciate our men and material. On at least two instances our MiG-25s flew even over Morocco. The first time was in 1982 or 1983, I don’t remember the exact date.

There was a large exercise involving the Moroccan and the US Air Force, and at the times the fighters of the Force Aerienne Royale du Moroc (Royal Moroccan Air Force – FARM) flew often very closely to our borders, and in a very offensive manner. They were staging simulated raids over an area that is exceptionally difficult (not to say impossible) to defend for us. They never entered our airspace, but it became very frustrating for us to see them so close to the border. Consequently. We deployed a single MiG-25s from Ain Oussera AB to Tindouf – at low level and by night, and then decided to make a small show on the following day. We were monitoring Moroccan and USAF operations for days, and knew when these would end. So, when their fighters finally landed, we scrambled our MiG.

Now, the runway at Tindouf is pointing directly in the direction of the border. Because of this all of our fighters – except MiG-21s – must turn sharply after the take-off, so not to violate the Moroccan airspace. In turn, however, it became common for the Moroccans to see our fighters taking off towards their border. Of course, we always turn away, but on this day the MiG accelerated straight ahead, increasing the altitude and speed as it flew out - over Morocco and the Atlantic Ocean, then turned around and came back.

There was no reaction: they did not scramble even a single fighter of their own. Not even their air defense sites were activated. But, subsequently, their flying along our borders became much more “diplomatic”.

Sometimes the Moroccan aircraft were forced to operate near the Algerian border and there were few instances in which the Moroccans and Algerians were directly facing each other. In 1986, for example, during another battle around one of the forward Moroccan bases, two FARM Mirages tried to attack one of the ALPS columns, which was retreating back into Algeria. One of the Mirages penetrated into the Algerian airspace and two QJA MiG-21bis were scrambled to intercept. As the Moroccan came into the range of the nearby QJA SAM-site, the ground command ordered the two MiGs to stay out of the fight, so to avoid a possible fratricide engagement. The SAM-site acquired the Mirage, but did not fire. Nevertheless, it forced the pilot to start a series of hard maneuvers: for almost a minute, the crew of the Algerian SAM-site watched the “air-show” put up by the evading Moroccan on the monitors of their TV-system. The Mirage-pilot did not activate his ECM-systems, and - after obviously getting tired of evasive maneuvers - simply distanced to the West. After this incident, the Algerians took some diplomatic steps towards Morocco, but nothing special came of these, as neither side was interested in risking a war.
edit aux anciens : c'est un recit assez connu d'Acig mais il y a surement des forumeurs qui ne le connaissent pas et je ne l'ai pas trouvé sur le fil ;)
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T800 a écrit :Victor Belenko ou pourquoi l'AAF remplaca les Smerch-A2 par des High lark 4

Smerch radar


RP-SA / RP-25 / Smerch-A / Izdeliye 720 was first introduced into service on the improved Tu-128A model. This improved Smerch design was used as the basis of the MiG-25's RP-25 radar. It weighed 500kg. The Smerch-A1 as fitted to the MiG-25 prototypes introduced a second, secret operating wavelength of 2cm in addition to the standard 3cm to ensure the radar would function even in a heavy ECM environment. Smerch-A1 could detect a bomber at 100km, with tracking range remaining unchanged at 50km. By the time it entered production, improvements in jamming resistance and low-level clutter tolerance had been achieved. Smerch-A2 / Izdeliye 720M gave improved reliability, and was the standard radar, and Smerch-A3 more improvements, which were fitted to later model MiG-25Ps as they rolled off the production line. Smerch-A4 was presented for testing, featuring a rudimentary look-down capability, but by this time the sucessful deployment of the Sapfir-23 radar with a different method of clutter rejection that was rather more successful made the Smerch family redundant. The subsequent defection of Viktor Belenko with a MiG-25P compromised the secrets of the Smerch-A radar and ensured its rapid withdrawal from Soviet service, though refurbished sets were fitted to new build MiG-25PDs for export.


RP-SM Smerch-M was the final iteration of the Smerch design used on the Tu-128M. Smerch-M reduced the weapons system's minimum combat altitude from 8,000-10,000 m down to 500-1,500 m while enhancing its jamming resistance. Probably equivalent to Smerch-A2/A3.

Smerch-100 / Groza / Vikhr

Smerch-100 was a late sixties design for the MiG-25MP (later MiG-31) and advanced Tupolev interceptors. Its designers, Phazotron NIIR, made extravagant claims for its performance. It was to be a combined radar/infrared fire control system. The Smerch-100 FCS comprised an FMICW phased array radar (PAR) based on the Sapfir-23 technical base with a huge 2m antenna dish, an infrared target acquisition and tracking system mated with the radar, a digital computer and additional side-view radar antennae. The Smerch-100 developer promised to provide the system with a 3,000-3,500km head-on acquisition range for aerial targets similar to the Tu-16, 600km lateral scanning acquisition range as well as 100km infrared acquisition range. The Smerch-100 system was supposed to ensure launching and guiding the air-to-air missiles at a range of 250 km when attacking targets head on. Such a radar would enable a single interceptor to keep tabs on a vast sector of the aerospace and be to some extent used as a AWACS aircraft in support of the local air defence zone and other interceptors.

Plans for the first stage of development provided for outfitting the interceptor with K-100 combined infrared/radar homing missiles featuring various warheads and an effective range of 80 km. In the future, there could be transition to longer-range air-to-air missiles since the Smerch-100 was capable of handling them. The Smerch-100 fire control system was expected to have full lookdown capability, encompassing the destruction of targets travelling at a speed of 500- 4,500km/h at altitudes between 50m and 35,000m. A joint automatic data exchange system for receiving data on various targets and commands from command posts and transferring it to other aircraft was also part of the design. Two prototype radars designated Groza and Vikhr were produced, but were not successful in tests. NIIR had failed to solve the two problems of detecting small objects against ground clutter, and tracking multiple targets simultaneously. Given the state of digital technology in the USSR at the time such a radar was far beyond the realms of possibility. Indeed even today it would be a tall order. All documentation for the project was passed over to NIIP. The far more realistic NIIP Zaslon project officially replaced the Smerch-100 in 1971, eventually entering service in 1983.

RP-25MN Saphir-25 radar




Sapfir-25 was developed by a team under Kirpichev as a very high priority task after the defection of Viktor Belenko to Japan in 1976 compromised the MiG-25's radar
. For speed of development, an existing radar had to be selected, and the MiG-23ML's radar, with its lookdown capability, was the obvious choice. Changes included the use of a larger antenna, which helped increase the search range in lookup mode to 100-115km against a bomber target, 90km against a fighter. Tracking range increased to 75-80km against a bomber, and 60km against a fighter. Weight 337kg. In look-down/shoot-down mode against a closing target range was reduced by 30%, against a receding target a further 40%. Compared to Smerch-A it could engage faster targets at higher altitudes, featured greater search and tracking range, provided lookdown/shootdown capability and close combat modes. It had 30 degree (+-15deg) and 60 degree (+-30 deg) search patterns. It also had better anti-jamming protection. Azimuth scanning limits were slightly reduced to +-56 degrees, elevation to +52/-42 degrees, by the twist-cassegrain antenna design.

(Source: http://www.overscan.co.uk/Avionics.html)
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Strato a écrit :Voila. :D
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Saludos desde España :cheers:
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lamine a écrit :Mig-25P / FU-75

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Mig-25RB / FG-34

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