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Greetings, and welcome to the World Affairs Board! The World Affairs Board is one of the premier forums for the discussion of the pressing geopolitical issues of our time. Topics include foreign & defense policy, international security, military developments, weapons proliferation, terrorism, international strategic affairs, and politics. Our membership includes many from military, defense industry, and government backgrounds with expert knowledge on a wide range of topics. Registration is fast, simple and absolutely free so why not register a World Affairs Board account and join our community today? |
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#166 (permalink) | ||
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For King and Fatherland ~ Freedom or Death |
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#168 (permalink) |
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WAB Bartender
Defense Professional
Military Professional |
MODS!!! KILL!!!
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"The quickest way of ending a war is to lose it, and if one finds the prospect of a long war intolerable, it is natural to disbelieve in the possibility of victory." - George Orwell |
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#170 (permalink) | ||
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If your actions inspire others to dream more, learn more, do more and become more, you are a leader. ~John Quincy Adams |
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#171 (permalink) | |
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Senior Contributor
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Edit: Just to explain few more things. Serbian and Croatian language is practically the same. Apart from few different words, difference is in articulation, so it sounds quite hmm..open minded for Serbian standards, especially when some hot Croatian girl is talking to you. I know that from the first hand, I had a Croatian girlfriend after high school. So, as you see TH, my comment was rather affirmative than offensive. I assume that people here don't prefer nuns, right? Last edited by kNikS : 05-03-2006 at 09:06 AM. |
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#172 (permalink) | |
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Are you not getting this? Putting words and phrases like "rape" and "all girls here are a bit open minded" together is extremely repugnant to many people here. Especially me. |
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#173 (permalink) | |
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Senior Contributor
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You don't really think that I am a rapist or that I aprove that? In any case I'm sorry if I choosen the wrong words to picture situation that I intended to. |
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#174 (permalink) | ||
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Banished
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#177 (permalink) | |
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the real plastic
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#178 (permalink) |
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New Member
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Here are some nice facts(not fiction) about the M(agnificent)iG-25.
About the top speed discussion, the MiG 25/31 book states... ‘’Some design deficiencies were discovered during tests - and they were discovered the hard way after some fatal crashes. For example, when the pilot pulled 5g during a manoeuvre, the wingtips were deflected up to 70cm (2ft Sin) from normal position, which could result in aileron reversal and loss of control. Rather than change the wing design, the designers imposed a Mach 2.83 speed limit on the MiG-25."(This is for the prototype version) ‘’Controllability remained inadequate, and breaking the Mach 2.83 speed limit could cause serious problems for the pilot or even prove fatal.’’(Prototype also) here's something that makes this aircraft really special. It was(and still is) much more manueverable than the a-12/yf-12/sr-71 family which were all pretty limited ‘’The closed-circuit flights entailed high g loads and sharp bank angles, the aircraft and pilot being subjected to these flight modes for considerable periods. On the 100km circuit, for instance, flight at 4g and 75° bank angle totalled about 2.5 minutes. Total time on the 500km circuit was about 10 minutes and twice as much on the 2,000km. During this time the aircraft experienced peak thermal loads.’’ the record held by the prototype ‘’Three months after the sensational flypast, Mikoyan test pilot Mikhail M Komarov averaged 2,982.5km/h (1,864mph) over a 500km (312.5 mile) closed circuit. The same day, Fedotov took a 1,000kg (2,204lb) payload to an altitude of 29,977m (98,349.7ft). These impressive records gave the Western world a clearer idea of the new MiG's performance.’’ the sr vs mig saga... ‘’The Lockheed SR-71 Blackbird, a strategic reconnaissance aircraft with remarkable speed and altitude capabilities, was completing its flight test programme at the time. The MiG-25P was the only real means of countering the Blackbird threat; therefore, the PVO top command wanted major industrial centres and important military bases, especially in the eastern and northern regions of the USSR, to be protected by MiG-25Ps.’’ ‘’This was a singularly important point in the aircraft's career as the service tests were completed and the MiG-25P achieved initial operational capability. During the service tests, live missile launches were made at the Nil VVS test range. For the first time R-40 missiles were fired successfully at targets in the aircraft's forward and rear hemisphere flying at 20,000m and speeds of up to 2,700km/h (1,687.5mph). This proved that the MiG-25P was actually capable of intercepting and destroying the SR-71. In general, the service tests went well and the 'bugs' that came up were quickly ironed out. each wing.’’ For MiG 25RB version ‘’The aircraft's manoeuvrability and the thrust of its massive turbojets enabled it to fly horizontally, albeit decelerating, at altitudes exceeding its service ceiling. The effective maximum horizontal flight ceiling in full afterburner with 3,300kg (7,275lb) of fuel remaining at the end of the flight was 26,000-27,000m (85,301- 88,582 ft). The MiG-25RB could exceed Mach 2.4 for 15 minutes but a Mach 2.65-2.83 dash was not to exceed five minutes. Cruising time at speeds below Mach 2.4 was unlimited.’’ This clearly shows how much more room was left for improvement. It could have been an even faster aircraft, which is remarkable when you compare it with the a-12/sr-71 design. This was much cheaper and simpler, yet it worked(sometimes it worked even better) ‘’MiG-25M (Ye-266M) Development The 1972 directive ordering the service entry of the MiG-25RB, 'RBK and 'RBS also elaborated on the upgrade possibilities of the basic design. The military wanted an increase in range at low and medium altitude and an increase in ceiling and maximum speed. The Mach 2.83 speed limit imposed on the MiG-25 was purely theoretical, since the aircraft had the potential to go faster from the very start. High speeds reduced lateral stability and service life, but there were cases of pilots exceeding the speed limit without harming the aircraft. Therefore, the designers intended to reach a Mach 3.0-3.2 top speed so that the MiG-25 could outperform its arch-rival, the SR-71A - the world's fastest recce aircraft. This could be achieved by fitting the MiG-25 with more powerful and fuel-efficient engines. As far back as the early 1960s, a group of engine designers led by Shukhov and Rotmistrov proposed a comprehensive upgrade of the R15B-300 turbojet. The idea materialised as the uprated R15BF2-300, Izdelye 65M. The improvement in performance was achieved by adding a compressor stage and increasing the combustion chamber and turbine temperatures. As compared with the R15B-300, the R15BF2-300 had a lower specific fuel consumption, a higher thrust (10,000kgp/22,045lb st dry and 13,230 to 14,500kgp/29,166 to 31,966lb st reheat) and a higher compressor pressure ratio (4.95 vs 4.75). The two engines were perfectly interchangeable, having identical dimensions and mount- ings. Providing the airframe was made more heat-resistant (that is, because of the higher turbine temperature), the new engines offered a substantial increase in rate of climb, ceiling, range and speed (up to 3,500km/h, or 2,187mph). The re-engined MiG-25 never entered production - for several reasons. First was the test programmes of two new aircraft, the MiG-25 Izdelye 99 and the MiG-31, which also began in 1975. Both aircraft were powered by the Solov'yov PS-30F (D-30F) engine with a similar rating but a lower specific fuel consumption (SFC). Second, the aero engine factories were tied up with other orders and could not produce the R15BF2-300. Finally, the PVO top command was more interested in the MiG-31 than in an upgrade of the existing MiG-25. Therefore, the MiG-25 programme was terminated.’’ and another possible MiG-25 version... MiG-25PA(Ye-155PA) Interceptor In the mid-1960s the Mikoyan OKB was working on an interceptor project referred to as the Ye-155PA. This aircraft was to be capable of destroying targets flying anywhere between 100 and 30,000m (328 - 98,425 ft) at speeds of 3,500 to 4,000km/h (2,187 - 2,500 mph). To this end, it was to be equipped with the brand-new 'Smerch-100' radar, later renamed 'Zaslon' (Shield), and armed with the equally new R-100 missiles. The powerplant consisted of two R15BV-300 turbojets with an improved high altitude performance (Vysotnyy - high altitude) which would take the aircraft to Mach 3.5. and some "action" foxbats over Israel Ensuring flight safety turned out to be a major difficulty. To avoid encounters with Israeli Sorties over Israeli-held territory involved cruising in full afterburner for about 40 minutes. Air temperature in the intake ducts reached 320°C; the aircraft skin was not much colder either (303°C). By then, the Tumanskii design bureau had extended engine running time in full afterburner from three to eight minutes and then to 40 minutes. Thus, virtually all sorties could be flown at maximum thrust; the R15B- 300 turbojets proved reliable enough and gave no problems in the hot Egyptian climate. (as you can clearly see here, there was really no danger of overheating the engines. They could spent the entire flight in a full afterburner mode, much like the J-58s used in the OXCART) "The Israelis did have a reason to be nervous. Among the support equipment and other paraphernalia Det 63 had brought with them were bomb racks for the two strike capable 'RBs and FAB-500M-62T low drag bombs, specially developed for supersonic bombing. Each aircraft could carry up to eight such weapons; after being released at high altitude they could sail through the air for miles and miles. However, the Soviet pilots' missions did not include bombing." the famous Mach 3.2 incident clearly shows that the aircraft suffered no damage from the heat and the speed, and neither did the engines(how the hell would you land an 30 ton Mach3 bird with no engines!!!????) As an excuse for their inability to intercept the elusive MiGs the Israeli air defences stated that 'the object was clocked at Mach 3.2'! However, the flight recorders of the MiGs showed there were no major deviations from the prescribed flight profile. The aircraft were not always flown by the book. On one occasion Bezhevets exceeded the 'red line' to get away from pursuing Phantoms; the flight recorder showed that the Mach limit had been more than tripled(l). Other sources state that it was WS pilot Krasnogorskiy who should walk away with the record (and get the 'speeding ticket'), as he reached 3,400km/h (2,125mph) in one of the sorties. This was dangerous because the airframe could be damaged by overheating, but careful inspection of the aircraft showed no apparent damage. Still, the pilots received an unambiguous 'debriefing' afterthis incident. So, before you trash one of the most significant aircraft ever built, you better learn something about it |
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#180 (permalink) | ||
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