F-35 Joint Strike Fighter News, Videos and pics Thread

Discussion in 'World Armed Forces' started by Jeff Head, Dec 1, 2011.

  1. mig-31
    Offline

    mig-31 New Member
    Registered Member

    Joined:
    Sep 17, 2014
    Messages:
    27
    Likes Received:
    20
    The main principles doesn't change whether the design is simple or complex. It is only that in complex design there is more calculation to be made so you require a computer. But that does not in any way mean the basics working principles of creeping wave and diffraction change.
    If you add a small objects/detail with RCS of X to a model with a RCS of Y, the total value will not be equal X+Y, because we have to consider the effect of retro directive reflectors, as well as discontinuities, return. But that does not in any way mean the principles change.





    It is the same with real life experiment. The main difference between a simple model and a full-scale airplane is the fact that a full scale airplane have many small details and panel gaps. So, generally speaking, there are more discontinuities and scattered locations. But main principles remain the same, return in Mie region is ALWAYS and I really mean ALWAYS frequency dependence. Because in Mie region the creeping wave return curve around the object and interfered with the specular return. The end result depend on whether this interference is constructive or destructive. Whether the interference is instructive or destructive depend on whether the creeping return and specular return are in phase or out of phase. That why the wavelength is important in this region.


    Just because an aircraft has RAM applied on it doesn't mean it will have low RCS or will become a low observable aircraft. US also applied Iron ball RAM on F-15, but that doesn't mean F-15 will suddenly have the same RCS as F-16, let alone something on F-35 level. Reducing RCS has other benefits apart from making your aircraft hard to detect, putting RAM on your aircraft can help reduce its return and making jamming more efficient. This is the case for F-15 and Su-34. They are not stealthy in any way, shape, or form. Su-34's X-band scatter is not slightly bigger than F-35, unless we consider a dozen thousands times bigger is slight. At most, Su-34 is the same as F-15 with iron ball RAM. Hoping that it can reach the level of dedicated stealth aircraft is simply wishful thinking with no basis on reality. FYI, US does refuse military hardware when their performance doesn't reach important requirements, just look at how many program they canceled.
     
    Air Force Brat and TerraN_EmpirE like this.
  2. Air Force Brat
    Offline

    Air Force Brat Brigadier

    Joined:
    Dec 7, 2011
    Messages:
    8,831
    Likes Received:
    10,313
    Yep!, but don't think our friend anlsv is gonna catch any of this??? doesn't fit his world view as outlined by Terran?? LOL another sad case of "head up and locked" here on SDF???
     
    TerraN_EmpirE and mig-31 like this.
  3. mig-31
    Offline

    mig-31 New Member
    Registered Member

    Joined:
    Sep 17, 2014
    Messages:
    27
    Likes Received:
    20
    On a more interesting note, SPEAR-EW will have 3 times the range of normal SPEAR
    [​IMG]
    [​IMG]
     
    Air Force Brat and TerraN_EmpirE like this.
  4. Jura
    Offline

    Jura General

    Joined:
    Jun 23, 2013
    Messages:
    23,567
    Likes Received:
    27,623
    saving
    F-35 Joint Strike Fighter News, Videos and pics Thread
    ? LOL
     
    Air Force Brat likes this.
  5. mig-31
    Offline

    mig-31 New Member
    Registered Member

    Joined:
    Sep 17, 2014
    Messages:
    27
    Likes Received:
    20
    Ah because SPEAR-EW will be used by UK F-35, so I think it is relevant
    https://www.mbda-systems.com/press-releases/17630/
     
    Air Force Brat and TerraN_EmpirE like this.
  6. Jura
    Offline

    Jura General

    Joined:
    Jun 23, 2013
    Messages:
    23,567
    Likes Received:
    27,623
    when?
     
    Air Force Brat likes this.
  7. TerraN_EmpirE
    Offline

    TerraN_EmpirE Tyrant King

    Joined:
    Aug 29, 2005
    Messages:
    12,394
    Likes Received:
    10,727
    Yes @Jura its conceptual Vaperware Fan hyperbole.
     
    Air Force Brat and Jura like this.
  8. Jura
    Offline

    Jura General

    Joined:
    Jun 23, 2013
    Messages:
    23,567
    Likes Received:
    27,623
    spelled vapour.., not vapor though
     
    Air Force Brat and TerraN_EmpirE like this.
  9. TerraN_EmpirE
    Offline

    TerraN_EmpirE Tyrant King

    Joined:
    Aug 29, 2005
    Messages:
    12,394
    Likes Received:
    10,727
    It’s a concept work right now. We understand that. Much like the JAGM-F for American F35. That said both are derived from practical existing components.
     
    Air Force Brat likes this.
  10. mig-31
    Offline

    mig-31 New Member
    Registered Member

    Joined:
    Sep 17, 2014
    Messages:
    27
    Likes Received:
    20
    No idea about when, the contract for SPEAR-EW is recently awarded to MBDA. But normal SPEAR is expected to enter service by 2021, they have done several flight test as far as I know. SPEAR-EW is basically SPEAR with a bigger brite cloud jammer.
    [​IMG]
     
    Air Force Brat likes this.
Loading...

Share This Page