abercrombie and fitch paris

mf08y7j1q3u

although in order to reduce the resistance,abercrombie and fitch paris, so the wing is generally small,hogan sito ufficiale, so lift relatively minor, so the lift-drag ratio is generally not high, only the equivalent of a subsonic missile / 4-1 / 5, while the missile is faster, requiring full power of the engine to work,moncler 2014, so it should be an engine fuel consumption higher than subsonic missiles, so under the same conditions, the supersonic missile's range is much smaller than subsonic missiles. The simplest example, 3M80E ballistic missile at low altitude mode range may be less than the Harpoon anti-ship missiles, but the weight is probably the latter several times.So from the outside perspective, we may not hold too many expectations on the range of conditions under low-altitude ballistic YJ-12's.
but the face of the other advanced carrier-based air defense system, the probability of success is actually not ideal.So for this goal combat aircraft fleet, relies on a missile can not get good results, you may need a variety of missiles, a small group of multi-channel approach,giubbotti moncler uomo, useful at different heights, speeds, using different guidance system have achieved targets better results. So we can say that the service YJ-12 to improve the ability of naval aviation saturation attack, but it is not a decisive weapon.In addition,scarpe hogan outlet, from the perspective of the state YJ-12, I think it will be our country to the international market, especially in small countries, after all potential opponents of these countries may not afford such an advanced ship-borne Aegis integrated air defense system, in general in front of shipboard air defense systems,abercrombie pas cher, YJ-12 is clearly a deterrent ability weapons complex under offshore conditions, the use of land, sea clutter done under the cover of their ability to attack people apparently can not be ignored.
the current super international market sonic anti-ship missiles are Russian monopoly.
but at the moment subsonic supersonic missile uses ramjet fuel, also known as sub-combustion ramjet, its greatest feature is the need to slow down the air flow into the inlet chamber to burn fuel, so burning is relatively stable, but in this process due to pneumatic do move, so the air temperature rises sharply,hogan interactive donna, eventually causing the engine does not work, so the theoretical limit of sub-combustion ramjet engine speed is about Mach 6, but considering the limitations of engineering,abercrombie france, such as materials, processes and so, in fact, this indicator also dropped to about Mach 4. Some speculate YJ-12's flight speed is probably for this reason.But I have reservations about this indicator, it is because the higher the speed of the missile flight, the structure, material requirements missiles higher, because the surface friction and heat and air missile, will play the sharp rise in the temperature of the body surface, For the requirements of this missile is also very high,giubbini moncler, so taking into account the cost factor, cost and other aspects, I believe that speed YJ-12 at about Mach 3 may be more reasonable.YJ-12 index range is another interesting fact supersonic anti-ship missiles than subsonic missile at a disadvantage,moncler outlet online, this voyage cloth cover from the column formula can get the reasons listed in the cloth cap into Formula , a range equal to the number of lift-drag ratio *'s when the weight of the speed / engine efficiency * launch weight / fuel exhausted, we know, supersonic anti-ship missile.
the inlet is arranged around the X-shaped elastic body, the advantages of this arrangement is preferably in the state of the inlet normal flight performance, and structure is relatively simple, since the overall layout of the inlet conducive missile flight control systems for less demanding,hogan interactive donna, so we see several supersonic anti-ship missiles such as the Russian KH-31,nike air max 90,3M80E are using this layout, but it The disadvantage is that the performance of the inlet angle of attack increases rapidly decline, low mobility, there will always be another one or two at a total inlet pressure recovery back above the lower shells, so it will drag the entire performance intake, thereby reducing engine thrust, another projectile opening more, is not conducive to control structural strength.How to take a closer look,moncler italia, you will find YJ-12 and KH-31 still has some differences, YJ-12 uses a beveled inlet,moncler, equivalent to the inlet to move out an inclined plane,moncler 2014, the air hit the ramp began to slow pressurization.
but for supersonic anti-ship missile, the increase range of relatively simple and economical way is to use high trajectory, we know that high-altitude thin air resistance,abercrombie london, so the use of high-altitude supersonic ballistic missile mode, its range will increase exponentially, like 3M80E upgrade to 3M80VE, the missile itself did not change, just modify the flight control, the cruise altitude increases to m altitude,piumino moncler donna, increase its range to 200 kilometers immediately above described effect is obvious.But the disadvantage is likely to expose high-altitude ballistic targets,hogan online, especially in the case of such an advanced carrier-based Aegis air defense system diffusion, use the plus missile vertical launching system, so that the reaction shipborne air defense missile capability is significantly improved, even if the missile can speed of Mach 3 targets from high altitude.
thereby improving the efficiency of the air intake, so the structure is relatively simple, but the drawback is that shortening the length of the inlet, less efficient, and KH-31 plus the use of circular inlet shock cone, using shock to improve the efficiency of the inlet cone, since it is possible to ensure that the length of the inlet, so its high efficiency, but the structure is more complex.Speed   � J-12 is a matter of concern, supersonic missile advantage is speed, the other defense systems in a short time of exposure, the other's reaction time can be shortened from the truth in terms of speed is obviously faster the more good.
相关的主题文章：

  
   http://www.gegesebb.com/forum.php?mod=viewthread&tid=1032571&fromuid=7074
  
   http://www.8264.com/home.php?mod=spacecp&ac=blog&blogid=
  
   http://211.86.128.2/gjjl/Review.asp?NewsID=595
  
   http://www.jiese.cn/home.php?mod=space&uid=42853&do=blog&quickforward=1&id=2309864
  
   http://www.acgcube.com/bbs/forum.php?mod=viewthread&tid=96743&fromuid=99206
  
   http://60.191.126.74:2222/dengpin/bbs/forum.php?mod=viewthread&tid=2929691
  
   http://237.newfine.net/home.php?mod=spacecp&ac=blog&blogid=
  
   http://www.hostpython.com/forums/showthread.php?t=871562&p=880116#post880116