dark light

lukos

Forum Replies Created

Viewing 15 posts - 571 through 585 (of 1,752 total)
  • Author
    Posts
  • in reply to: F-35 News, Multimedia & Discussion thread (2015) #2206891
    lukos
    Participant

    It seems that APG-81 and Captor-E will be all-singing, all-dancing AESAs with RF warfare capability, unlike the RBE2-AA, which appears to have been a more rushed effort for a marketing tick in the box, rather than the pursuit of end capability.

    in reply to: Eurofighter Typhoon discussion and news 2015 #2206998
    lukos
    Participant

    The part about radar angle is pretty straightforward and accurate. Nobody really talks in depth about RCS reduction measures, just the obvious stuff.

    in reply to: Mediums: best compromise or worst? #2207008
    lukos
    Participant

    as you said, it should , especially for the money spent.. problem is, it doesn’t look that way.

    Except that the sdb’s are half size of the ones on the picture (250lbs vs 500lbs for the Rafale here).

    What’s more, that is the configuration in uncontested air space. In case enemy aviation may be present, the Rafale, on the same configuration, can add up to 4 more A2A missiles

    What can a 500lb bomb do that a 250lb bomb can’t? Most of the targets were vehicles in Libya, so you could even replace those 500lb bombs with 100lb missiles in the case of Brimstone, or 200lb missiles in the case of SPEAR. Hit the target from 120+km away and save a 200km return trip to the target area.

    In terms of missile count, the more you add, the more drag you add, the lower the performance and the more likely you are to be detected and have to jettison the A2G load. You also have to look at the likelihood of being outnumbered 2:1. The combined airforces of every other nation in the world wouldn’t be able to achieve that against NATO. And I’d imagine that the Rafale in that picture no longer has better TWR and wing loading figures relative to an F-35 with 8 SDB/Brimstone/SPEAR and 2 AMRAMM/Meteor/ASRAAM. Furthermore, in terms of carrying extra AAMs, I’d say the Typhoon has the advantage over the Rafale in being able to carry 4 AMRAAM/Meteor with zero affect on drag index, and ultimately carry 6 Brimstones, with a combined weight not much over one AASM 250 and far less drag.

    Anyway, to answer the question properly, the configuration in contested airspace is other aircraft flying CAP.:D

    in reply to: Rise of the 6th Generation Fighter … #2207017
    lukos
    Participant

    When I heard DEW being mentioned, for some reason I had the weird idea of designing an aircraft out of a mirror-like material. Stupid or genius?

    in reply to: Eurofighter Typhoon discussion and news 2015 #2207020
    lukos
    Participant

    http://www.eurofighter.com/downloads/TecGuide.pdf

    Page 21

    RARAR CROSS SECTION (RCS)
    REDUCTION

    People often consider that RCS is an absolute
    – you are either stealthy or you not. This is not
    the case. There are fighters with a relatively
    large RCS like the F-15 and Flanker; at the other
    end of the scale the F-22. Eurofighter
    Typhoon and Gripen sit somewhere in the middle,
    with high composite structures giving a
    balanced relatively low RCS but stores mounted
    externally. But what many do not realise is
    that one of the principle reflectors back to an
    enemy aircraft is your own fighter antenna.
    When we look at a fighter jet what we see
    is an aerodynamic masterpiece: a sleek nose;
    a wafer thin profile, and the reflection of many
    hours of work by thousands of talented people.
    That’s not what an enemy radar sees.
    Consider that the aircraft nose is designed to
    be completely invisible to radar. It has to be,
    for the aircraft’s radar to work. What their
    radar sees is, more often than not, a huge reflection
    straight back off an antenna pointed
    straight at them.
    Think of it like this and, instantly, you have
    a different image of the world of fighter-jets –
    each flying around with a massive reflector on
    the front saying ‘I’m here, shoot me first!’
    Now many of the most recent AESA antennas
    are tilted up or down 30° from the horizontal.
    As a result, most of an enemy radar’s
    incoming energy is harmlessly reflected away
    from the enemy aircraft. This gives a big reduction
    in effective RCS.

    Examples where the AESA antenna is still
    mounted vertically are either older designs (F-
    15), or aircraft whose nose size only enables a
    smaller antenna (F-16 and Rafale).
    If you already
    have a small antenna an additional 15%
    reduction in power (roughly the loss to the
    aperture at 30°) to achieve an RCS reduction
    is probably a poor pay-off.
    For Eurofighter Typhoon this is not an issue,
    our antenna is big enough to mount well
    over 1400 TRM’s on a large swash-plate.
    Now you might think that a big reflector
    may make us vulnerable. Well it would do if
    the swash-plate didn’t allow us to angle the
    plate to minimise its profile to enemy eyes.
    None of our serious competitors with a decent
    sized antenna, are able to move their radar arrays.
    They are fixed, usually at about 30° facing
    upwards and forwards – the usual position
    for a fixed plate AESA radar.
    Ours though has a unique range of movement
    on the swash-plate which maximises its
    effectiveness and which can minimize vulnerability.
    You need to consider that we now
    have a large moveable radar array which has
    significant reach and which has the best field
    of regard of any radar out there. It gives us a
    major advantage.

    in reply to: F-35 News, Multimedia & Discussion thread (2015) #2207029
    lukos
    Participant

    The Rafale antenna is also vertically mounted, which increases RCS for those beams that do pass the randome.

    I think the Captor-E is supposed to have those things, when everyone gets off their a55.

    http://www.armada.ch/aircraft-self-protection-sophistication/

    The latest support to self-protection will however originate from the new aesa radar which is to replace the Captor system, providing in a spiralled programme with passive, active and cyberwarfare RF capabilities.

    in reply to: Eurofighter Typhoon discussion and news 2015 #2207031
    lukos
    Participant

    The Germans won’t even call them ‘Typhoons’.

    in reply to: MiG-25 vs F-4 in Iran-Iraq war #2207069
    lukos
    Participant

    Acig is tom.cooper.
    All references go back to tom cooper.

    Etc…

    3 losses were confirmed by Iraq.

    in reply to: MiG-25 vs F-4 in Iran-Iraq war #2207080
    lukos
    Participant

    Acig is tom.cooper.
    All references go back to tom cooper.

    Etc…

    An F-16D also shot down an Iraqi MiG-25 in 1992.

    lukos
    Participant

    Yes, if the Typhoon programme was to (a) retain a facility to develop advanced fast jets (b) to provide fast jets for the forces of the participating countries, the partner countries passed up much of the industrial benefit provided by investing in (a) through refusing to agree to invest in systems they were going to acquire anyway before trying to secure export sales. By trying to save money the Typhoon partner governments lost all the tax income that would have flowed from additional sales yet still have to pay to develop the missing capabilities that resulted in Typhoon being non-competitive in many selection competitions.

    Yes,a bit like trying to sell a house when you have only just started building it when the competition is offering a house where most or nearly all of it is built or arrangements have been made to do so.

    Heck, they could even throw the Brimstone’s MWR on a Meteor or ALARM airframe and have a fast-ARM, maybe even progress that Storm Shadow MLU (datalink + ESM) and have an anti-ship missile, but that would be too much like hard work. Scary to think that the AMSAR was tested nearly 15 years ago.

    lukos
    Participant

    It doesn’t have to be the SH. Maurer just mentioned “an american type”. Typhoon isn’t completely out aswell. It’s “not a favourite”. I wouldn’t bet money on EF though.

    Depends what happens between now and 2017. If the collective partners get off their a55 and finally integrate Captor-E, Meteor, Brimstone, SPEAR, CFTs and these new twin store pylons that have been seen, along with the newer ESM system then that could definitely sway things. Sadly though the previous intent seems to have been to try win exports to pay for these things, which is like trying to sell a house before it’s built.

    in reply to: Eurofighter Typhoon discussion and news 2015 #2207221
    lukos
    Participant

    So did the germans paint their typhoons in anniversary Me109 markings?

    Nic

    Or a little moustache?

    in reply to: Eurofighter Typhoon discussion and news 2015 #2207223
    lukos
    Participant
    in reply to: F-35 News, Multimedia & Discussion thread (2015) #2207240
    lukos
    Participant

    DDM-NG is MAWS only, it does track enemy targets in the air and on the ground and feed information to the HMDS, which the Rafale also doesn’t have. Some of the technologies on the F-35 have been done before, but not to the same level with the most up to date hardware and software.

    As for the Gripen NG, I thought it might be a decent aircraft until I saw the weight and thrust figures. It’s TWR is no better than an F-35’s with fuel and likely way worse in any combat configuration, and the only way it can achieve the same range is with large canoes on the wings. The F-35 has more chance of detecting it outside IRST range and getting it the first shot. The F-35 needs less jamming power due to lower RCS but has more due to large powerplant, jamming and countermeasures are more likely to be successful against any missile too. As a strike fighter, it’s less visible to ground radar and carries everything internally, less drag, lower RCS, easier jamming, more chance of reaching the target undetected.

    in reply to: MiG-25 vs F-4 in Iran-Iraq war #2207639
    lukos
    Participant

    How so, the F-14 radar could acquire targets at 100 miles range?

Viewing 15 posts - 571 through 585 (of 1,752 total)