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aurcov

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Viewing 15 posts - 1,186 through 1,200 (of 1,239 total)
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  • in reply to: To Iran with love!!! #1815343
    aurcov
    Participant

    The Europeans are tied into the Iranians economically due to their reliance on Iranian gas and also due to the sales of goods to Iran

    Not a single cubic meter of Iranian natural gas is exported in Europe. Aside its own production, Western Europe imports natural gas by pipelines from Russia, Libya, Algeria and LNG gas from various sources, but not from Iran. OTOH, Iran exports some 2.5 milion barrels/day of crude…

    in reply to: BVR vs WVR kills #2595377
    aurcov
    Participant

    Sorry for the mistake: I meant the former 😮

    in reply to: BVR vs WVR kills #2595443
    aurcov
    Participant

    But the airframe went through a complete redesign before they started cutting metal because the mission went from always up high to having to take into account low altitude flying. Just because they weren’t able to take advantage of that out of the gate does not mean it wasn’t designed for it from the get go.

    Anyway, what is the most probable mission profile of the B2: high or low? My opinion is that it is the later. The main idea of stealth bomber (oposed to low level penetration) was to regain the “high ground”.

    in reply to: BVR vs WVR kills #2595462
    aurcov
    Participant

    Again, its from an internal USAF report in conjunction with the AMRAAM design with the research conducted by a Colonel in the USAF.

    It is a quote from an “aviation expert” quoting some unofficial USAF “source”.

    As for the B-2 flying low, has it not been designed with that in mind as well as high altitude penetration – otherwise it would not have the terrain following radar onboard.

    It seems that it was not designed for low level mission. This capability was introduced later, in the second block:

    Block 20 configured aircraft have an interim capability to launch nuclear and conventional munitions, including the GAM guided munition. The Block 20 has been tested with the Mk-84, 2,000-pound, general-purpose bombs and the CBU-87/B Combined Effects Munition cluster bombs (low-altitude, full-bay release). Block 20 aircraft, produced between April and December 1996, provided greater electronic and weapon-delivery abilities. A Terrain Avoidance/Terrain Following (TA/TF) capability was provided for low-profile missions.

    from: http://www.globalsecurity.org/wmd/systems/b-2-variants.htm

    in reply to: BVR vs WVR kills #2596408
    aurcov
    Participant

    Unfortunately, radar has not only turned out to be less than invincible, it has recently become a liability.

    ???? Than scrap all the radars and buy binoculars!

    The USS Stark could not defend itself against two Exocet sea-skimming missiles

    USS Stark was hit because it didn’t consider the incoming mirages as hostiles.

    The DOD has been trying since 1977 to give birth to the advanced medium range air-to-air missile (AMRAAM) as a replacement for the AIM-7 Sparrow and the AIM-9 Sidewinder. Almost 13 years later, the technical challenges of creating the AMRAAM are still to be met.

    But 29 years latter AMRAAM is considered the prime A-A missile in the world, the benchmark against any country rate its own missiles, the only active radar missile that scored in battle. More than 12,000 has been built and 20 countries use it.

    Suddenly, a minor enemy arose who put up a limited air challenge with inferior MiGs. The U.S. fielded its front-line fighters, in particular the F-4 Phantom II, which had been designed for fleet defense rather than violent close-combat aerial maneuvering. Back came the dogfight, but since pilots had little dogfight training and worried about killing their buddies, the Americans did not do well, especially with radar-guided Sparrows and especially beyond visual range.

    Oversimplification at least. In the fisrt part of Vietnam war, the unimpressive US record was indeed due to poor WVR training, lack of gun and unreliability of early Sidewinders. But ROE imposed by policitians was also a reason: US pilots had to visually identify the ennemies, so any advantage in BVR US had was negated.

    At $ 500,000 a missile, the AMRAAM solution has a cost 10 times higher than a Sidewinder.

    BS! Because they delivered over 12,000 of them, Raytheon was able tu cut the price to ~ 350,000$ (support, training not included), while the Sidewinder climbed to around 200,000$! And we should consider that US missiles are probably the least expensive due to higher production numbers…

    Of the 632 Sparrows fired in all the wars Burton studied, only 73 destroyed the airplane they were fired at, for a kill rating of 11%

    In Southeast Asia, Sparrow had such a poor reputation that pilots routinely ripple-fired their Sparrows, firing off two or more in a row rather than taking a chance on a single shot.

    Yes, but in 1991 Gulf War the performance of Sparrow was more than OK.

    In 1984, Burton managed to have the idea tested in McDonnell Douglas’ differential maneuvering simulators.Over and over, ARM-equipped fighters shot down AMRAAM aircraft and missiles

    The boldened word says all…

    An AS-4 or -6 could be launched 300-400 mi. away and home in on it with ease.

    :p

    Pilots of B-1 and B-2 bombers penetrating Soviet airspace most likely will use terrain-following radar to stay low and avoid detection.

    That speaks volumes about how “profesional” the author is (or was, in Ethel case). A B 2 will not fly low and will not use a terrain following radar.

    in reply to: How would you bring down a B-2? #2600711
    aurcov
    Participant

    Now im assuming you would have a pretty decent air defence setup, probably some S300’s and the like and whatever else you have to throw up there. The trick is to have at least 5 dummy sites for every real one, and i dont mean cardboard cutouts, i mean real looking batteries, decoy electronic warfare devices… the lot. Make it out as if your entire force (of decoys that is) is waiting for the Americans to attack. The real ones are hidden further out, pretty much right about the area where the americans will weapons release (and as such be as unstealthy as possible), heavily camouflaged, and totally turned off.

    Usually, the first step in order to destroy an air defense system is to attack radar sites. SAM ramps came later. By the way, the Iraqi used decoys on a large scale in both wars with US. Did this help them? Not much.

    well Iran has the SA-10

    Since when?

    think its blatently obvious my friend that Iran does not value its mens lives that alot of other countries – i only have to point in the direction of the mass ‘human wave’ assaults on Iraqi positions during the Iran Iraq war

    And what was thew results of the “mass human wave assaults”? Did they take the Iraqi position? I don’t remember.

    in reply to: How would you bring down a B-2? #2600781
    aurcov
    Participant

    If your really evil such as myself, send a force of tomcats or phantoms on a martyrdom mission as the ambush begins, load them up with fuel tanks and AAMs and send them after the tankers and the awacs aircraft wich would be waiting just outside of the main theater of battle. In the mayhem you may score a few kills before the Americans realise whats going on and take them out.

    Hmmm…I think it won’t work. AWACS, RC 135, tankers are considered “high -value assets”. There are procedures they operate after, special care is taken to protect them. For example, when F 22 become operational, one of the first mission they pracitice was just that:

    The F-22s routinely tangle with F-15Cs at Langley, according to Capt. Bill Creeden, a Raptor pilot with the 27th.

    In a typical training mission, he said, a given number of Raptors will be matched against twice as many adversaries.

    A certain type of mission is simulated—defending a base, escorting an attack package, defending a high-value asset such as an AWACS—and the F-15s routinely are destroyed without ever seeing the F-22s.

    Beside a fighter in “martyrdom” mission (except that any Iranian attempt to directly charge the USAF, would be in a sense a martyrdom mission :diablo: ) would have far less chances to destroy an AWACS than simply firing its 4-6 A-A missiles!

    in reply to: Iran says fires "world's fastest underwater missile" #1816135
    aurcov
    Participant

    Now why bring up the MK 48 or any conventional modern torpedo?

    Because you said:

    I actually said that sonar guidance by the torpedo is impossible

    Had you said that Schkval is not possible to be guided by sonar, I would not contradict you. I thought that you meant that sonar guidance is not possible for torpedoes in general.

    in reply to: Iran says fires "world's fastest underwater missile" #1816189
    aurcov
    Participant

    I actually said that sonar guidance by the torpedo is impossible

    From http://www.globalsecurity.org/military/systems/ship/systems/mk-48.htm:

    A highly capable weapon, the MK 48 can be used against surface ships or submarines, and has been test fired under the Arctic ice pack and in other arduous conditions. The ADCAP version, in comparison with earlier MK 48 torpedoes, has improved target acquisition range, reduced vulnerability to enemy countermeasures, reduced shipboard constraints such as warmup and reactivation time, and enhanced effectiveness against surface ships. The MK 48 is propelled by a piston engine with twin, contra-rotating propellers in a pump jet or shrouded configuration. The engine uses a liquid monopropellant fuel, and the torpedo has a conventional, high-explosive warhead. The MK 48 has a sophisticated guidance system permitting a variety of attack options. As the torpedo leaves the submarine’s launch tube a thin wire spins out, electronically linking the submarine and torpedo. This enables an operator in the submarine, with access to the submarine’s sensitive sonar systems, initially to guide the torpedo toward the target. This helps the torpedo avoid decoys and jamming devices that might be deployed by the target. The wire is severed and the torpedo’s high-powered active/passive sonar guides the torpedo during the final attack.

    The MK 48 Mod 5 ADCAP torpedo is an improvement to the MK 48 submarine launched torpedo. It is a heavyweight acoustic homing torpedo with sophisticated sonar and a fuzed warhead.

    in reply to: Iran says fires "world's fastest underwater missile" #1816211
    aurcov
    Participant

    Toy or no toy it sure does effect the balance through which US will conduct its war in gulf (if any in future). Neat gadgets coming out of the unkown. I wonder is that all or just a hint of wht is in store if USA like to venture into Iran. Comments guys?

    Maybe the Iranians claim of radar evading capabilities simply refers to the the fact that the flying boat would fly low; inherently it would be harder to locate for a ship radar, compared with a conventional plane flying at high-medium altitudes. However, no US battle group travel without its Hawkeyes. I doubt that such a system would have trouble in detecting the flying boat.

    Well i dont know about the capability of doing such a thing or not , i just keep my answer concerned to the motive part of a preemptive strike by Iran. I wonder do they really wana go into war with America to an extent that they go for a pre emptive strike. Yes if USA is already in war with Iran then tht strike wont be pre emptive will it be. Comments guys?

    I believe that the threat that really concerns USN is not the flying boat or the Iranian Shkval (either sold by the Russians or a an Iranian clone). Probably the ~20 North Korean-built fast-attack patrol boats armed with Chinese C-802 antiship cruise missiles (60-mile range), the Chinese HY-2 Silkworm antiship cruise missiles orthe three Russian Kilo-class diesel submarines with conventional torpedoes are considered more dangerous.

    A target at 30 kms would have plenty of warning despite the 200knt speed of the Shkval and turning bow or stern on would make it a rather small target for a weapon with no terminal seeker.

    All the sources I’ve seen credit the Schkval (the original Russian) with a range of 10-12 miles. Moreover some sources say: the kill probablity at 7000 yards is ~ 80 %.

    I repeat: hard to believe that a torpedo boat/sub. could come so close to a USN ship in wartime.

    in reply to: Iran says fires "world's fastest underwater missile" #1816352
    aurcov
    Participant

    who are the pigs?

    in reply to: F-22 "downed" 5 F-15C #2602489
    aurcov
    Participant

    Interesting article in April issue of AFA Mag:http://www.afa.org/magazine/April2006/0406raptor.asp

    So far, the Raptor needs fewer maintainers than the Eagle “on paper,” Hecker said, but he admits taking as many support personnel on deployments as the Eagle requires. It’s because the aircraft is still so new, and there are still bugs to be worked out, he explained.

    However, compared to the F-15 or the F-16 at a comparable point in their fielding, “we’re doing better than they were,” he said.

    “All of our airplanes now have an upgraded software package,” he said, which “has reduced a significant number of those lockups.” They happen about “one out of every 100 sorties,” Hecker noted, compared to one in three several years ago. The reboot takes three minutes or so and if “you’re just about to go into an engagement, that can seem like an eternity.” Still newer versions of the software will further reduce the lockup problem, and USAF officials expect it will disappear completely with a software version expected in about 18 months.

    The F-22 typically operates at about 60,000 feet, he noted. At that altitude, the stealthy Raptor can slice through the thin air at Mach 1.5, undetected by the enemy. And even if detected, the Raptor would be out of reach or long gone by the time an opponent could bring his weapons to bear.

    In a typical training mission, he said, a given number of Raptors will be matched against twice as many adversaries.

    A certain type of mission is simulated—defending a base, escorting an attack package, defending a high-value asset such as an AWACS—and the F-15s routinely are destroyed without ever seeing the F-22s.

    But sometimes:

    Echols, who is also an instructor pilot, said sometimes the F-15s “win” against an F-22, but it is a rare event. When it does, it provides ample fodder for tactics evaluation.

    Should the F-22 ever get into a close-in, turning dogfight, it still will have a considerable edge. Despite its large size, the F-22 can turn as tightly as an early model F-16 and can, in fact, sustain a turn at 9.5Gs—a half-G better than any previous fighter. Hecker said the F-22 pilots can stay conscious in such a situation because they also have a new kind of G-suit that covers more of the lower body.

    “It covers a lot more surface area, so what pilots are seeing is that it gives you an extra G or two,” Hecker reported. On the upper body, F-22 pilots wear the Combat Edge suit, classified by the Air Force as “a partial pressure suit,” Hecker said.

    “That does help us get up a bit higher” in altitude.

    Also interesting si how they mange the stealth deterioration during rutine maintenance:

    Rather than clean up every single defect after every mission—“whether it be missing material, a crack, disbond, delamination, what have you”—the F-22’s handlers aim to keep the aircraft stealthy within certain parameters. After every inspection, the surface defects are cataloged and fed into a computer program called the Signature Assessment System. From a “pristine” aircraft fresh from the factory with no stealth defects—zero percent stealth impact—the percentage of dings on each Raptor accumulates over time in the computer model.

    “When it broaches the 80 percent mark, we start to think about … doing some repairs to get us back where we need to be,” Daig explained.

    The model system is a far cry from the F-117 and B-2, which both originally required elaborate measuring devices—sometimes instrumented flying ranges—to measure their stealth. The B-2 has since moved to a system similar to SAS.

    The “effects of defects” model “works very well for us, because you can find yourself with 200 to 300 nicks, dings, and scratches on the aircraft and still be an LO platform and still meet your LO missions,” Daig asserted. After the SAS registers 100 percent, “we can no longer guarantee to that pilot that he’s where he needs to be” in terms of stealth, she said

    in reply to: Iran says fires "world's fastest underwater missile" #1816369
    aurcov
    Participant

    At least one Shkval variant is said to be guided:

    I don’t know if the version they sold to Iran is guided. Nevermind, the range is to short.

    in reply to: Air Superiority with a F-22 / F-35 combo? #2602498
    aurcov
    Participant

    I don’t know where you’re getting your information on the F-35’s agility, but many don’t regard the aircraft as a genuine multi-role platform (I refer you to Bob Kemp’s comments at Singapore, for example).

    The benchmark for the JSF was the F 16. The JSF had to better the Viper by a 25 % margin in terms of acceleration, maneuverability etc. The prototypes built by both contenders (Boeing and LM) passed the criteria with no problems. As for combat radius on internal fuel, the improvement is even bigger: almost 600 Nmiles (USAF variant) vs. 350 Nmiles for the F 16. Test pilots described the F 35 prototype as a plane with the agility of the F 16 combined with the handling qualities at high AoA of a Hornet. That should be enough to compete with Eurocanards and Su 3X. As for BVR the frontal aspect stealth, the APG 81 and the IRST capable EOSS should give the F 35 the first chance against any fighter except, of course, the Raptor.

    in reply to: Iran says fires "world's fastest underwater missile" #1816388
    aurcov
    Participant

    And for those who state it can’t be guided… have obviously not heard of wire guidance for torpedos.

    Wire guidance is the common on torpedos. However, the Schkval is not guided; also the range is 10-15 km. Hard to believe that a ship/sub could come so close near a USN ship.

    Clear War,
    One thing to get correct when making such diatribes is facts. It was Iraq that hit the USS Stark. The year was 1987.

    Not to mention that the frigate was hit but not sunk. She was decomissioned only in 1999.

Viewing 15 posts - 1,186 through 1,200 (of 1,239 total)