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Poslao: 04 Apr 2013 17:39
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- ray ban11
- Legendarni građanin
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^
Na prvoj slici jasno vidimo antenu jednog od najvecih i najtezih radara lovaca tog vremena pa evo nesto o radarima koji su bili ugradjeni u presretacke varijante 25-ce / P/ PD i PDS ( PDSL ) .
RP-25 Smerch-A1
Citat: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 with 16 sq m RCS at about 100km, with tracking range remaining about 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.It weighed 500kg.
Smerch-A2 radar display on an Algerian MiG-25PD
N005 / Sapfir-25 / RP-25MN / S-500
Citat: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.
Detection range in lookup mode against a Tu-16 was 105-115km head-on. Tracking range against the same target was about 75-80km. Lookdown mode reduced these ranges to 27-30km and 22-25km respectively.
Detection ange against a MiG-21 in lookup mode was 70km head-on, while tracking range was about 50-60km.
Weight was 337kg. Used AVM-25 analog computer.
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° (±15deg) and 60° (±30 deg) azimuth search patterns, ±14° in elevation.. It also had better anti-jamming protection. Azimuth scanning limits were slightly reduced to ±56° , elevation to +52/-42° , by the twist-cassegrain antenna design.
Te nesto o toplopelengatoru / IC senzor /
TP-26Sh1
Citat:Infra-red search and track system fitted to MiG-25PD. Presumably based on the TP-26. Range given as 45km against a high altitude bomber (aspect unknown).
TP-26 IRST
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Poslao: 09 Apr 2013 18:04
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- ray ban11
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Jedan od onih koji su imali privilegiju da lete skoro 3 x brze od zvuka
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Poslao: 22 Apr 2013 14:21
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- ray ban11
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^
Zanimljivo da je PU mogao da koristi rakete R-40T ( ne i varijantu R ) .Mada se na slici ne vidi toplopelengator ili neki drugi senzor pa se onda postavlja pitanje kako bi se to izvodilo .
 [Link mogu videti samo ulogovani korisnici]
PU 02 plavi na snimku
[Link mogu videti samo ulogovani korisnici]
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Poslao: 22 Apr 2013 17:14
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- mean_machine
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Taktika USAF u slucaju napada MiG-25 na AWACS (1980tih):
Citat:We practiced the "high-fast flyer" scenario in the simulator frequently. We couldn't do it in peacetime due to the dangers involved.
Essentially, the AWACS detects the threat, calls it to us, and the procedure is...
1) Jettison all external fuel tanks
2) Park the throttles in full AB
3) Begin an unloaded acceleration to a particular mach; then, at a certain range, start a parabolic zoom climb so as to center the missile steering cue. In other words, point the missile such that it need not make many corrections enroute to the target, thus losing energy.
4) Fire ALL of your radar-guided missiles.
Since these were semi-active missiles, radar lock must be maintained the entire time as the Eagle begins to basically fall out of the sky. We were told that engine flameout was likely.
In the mean time, the AWACS is doing a "tactical retrograde" at its own red line speed. 
[Link mogu videti samo ulogovani korisnici]
Ovo je napisao Chogy (bivsi F-15 pilot, vrlo aktivan po raznim forumima). Inace kaze da je sa uvodjenjem AIM-120 obaranje meta koje lete visoko i brzo postalo znatno lakse (iz napisano se i vidi zasto je lakse).
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Poslao: 22 Apr 2013 17:22
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- ray ban11
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Ustvari se pominje taktika borbe protiv neceg sto je brzo/ visoko tj. 25-ce.
To mu je kljucni element u borbi i razlog kako je i zasto skinut onaj Strsljen u zalivskom ratu 1991g i jedan Orao mnogo ranije .
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