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  • in reply to: Yet another F-35 thread #2387757
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    BF-4 just took off πŸ™‚

    This is the first mission systems-equipped Lockheed Martin F-35 stealth fighter.

    http://farm5.static.flickr.com/4003/4500145515_529eef18bc.jpg

    what a fatty πŸ™‚

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    http://files.air-attack.com/MIL/b1/b1_asia.jpg

    is this a 1:1 scale picture? 😎

    in reply to: Modern fighters combat radius; #2387771
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    Doesn’t sound like combat radius.

    Cruise radius is defined as the distance to a point a aircraft or a ship need to turn back to make it back, not combat radius.

    in reply to: Modern fighters combat radius; #2387792
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    I can read 400 km radius at first.

    and now? πŸ˜‰

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    I made them in photoshop a while back. I have some more, but not much variation I’m afraid.:)

    http://img.photobucket.com/albums/v486/robban75/gripbulgaria1.jpg
    Copyright Gripen International Per Kustvik

    http://img.photobucket.com/albums/v486/robban75/gripswiss2-5.jpg

    It was a little tricky turning this one into a single seater. πŸ™‚

    http://img.photobucket.com/albums/v486/robban75/GripenDemo_05-7.jpg

    http://img.photobucket.com/albums/v486/robban75/Gripenbrazil.jpg
    Copyright Gripen International. Katsuhiko Tokunaga

    Sorry for bombarding this thread with the Gripen.

    i thought 2 last photos were the DEMO, but one i a singleseater?!
    Does gripen C realy cary that loadout?

    in reply to: Rafales for Brasil #3, Cachorro-quente! #2387823
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    Hopefully it wont take a year, and maybe we get to see those “strategic agreements”/benefits on the table. Or at least more people with different glases got to see them.
    Its all in democratic spirit, nothing to fear πŸ˜‰

    in reply to: Indian Air Force – News & Discussion # 13 #2387829
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    Just a question.
    Mig-21 is a 2nd gen airframe design & russians could reduce its RCS to 0.25m2-from i assue 5m2?-why does SU-35 has such a huge RCS in comparison? I assume the latter’s airframe was built with stealth in mind & could have been treated with the same RAM.

    First o all, mig-21 does have a natural fanblocker doesnt it? And its kind of lean form to begin with, not too many angles. I once heard the tunnel between the engine on Mig-29 and SU-27 etc. is no good for RCS but good for the aero. but i can be wrong here..

    in reply to: Modern fighters combat radius; #2387854
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    None of that claims do make some sense to stay polite.

    A Gripen can stay airborn for ~ 1 hour on internal fuel high up and cover a total distance of ~800 km by that. All that with minimum use of burner during take-off with two AAMs and at subsonic speeds. At low level the Gripen is down to ~40 minutes mission time. on internal fuel only.

    i found a source on the subject from the swedish DEFENCE UNIVERSITY Essay on C-level, thou in swedish, page 39.
    http://www.annalindhbiblioteket.se/publikationer/uppsatser/2002/chp0002/jacobsson_2016.pdf

    JAS-39 har en aktionsradie pΓ₯ ca 800 km utan komplettering av brΓ€nsle.

    This means
    JAS-39 have a cruising radius of approx. 800km without extra fuel.

    This would mean 1600km ferry range on gripen C without extra tanks, this means 56% better ferry range on internal for the NG.

    in reply to: Indian Air Force – News & Discussion # 13 #2388206
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    India to flight-test first indigenous jet engine next month

    After two decades of research and development, India is all set to flight-test its first indigenously developed jet engine next month, an official said on Wednesday.

    Source

    Nice!
    How much is the Kaveri enable to put out these days?

    in reply to: Modern fighters combat radius; #2388213
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    From Sign’s pdf I only deduce that:

    Gripen NG range is supposed to be 1300km + 30 min on station (?) (700NM) with 6 AAMs + External tank(s). Note that it isn’t specified how many tanks.

    It would be nice to have ranges for the Eurofighter. All I’ve seen seem to be prospective ranges.

    As for the SH, Boeing only states 500NM+ combat radius, which doesn’t mean much.

    Nic

    30min on station is an extra?! 200nm?!

    in reply to: Modern fighters combat radius; #2388258
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    It would be more useful simply to compare un-refuelled combt radius, rather than including range.

    Every combat aircraft needs to be capable of performing a mission. Combat radius shows in a simplistic way, without taking into account such variables as weather conditions, flight profiles, altitudes flown at, varying climb rates (high readiness alert missions etc) nor weapons/sensor loads, specifically.

    Range is simply a metric of how far an aircraft can fly, not a usefulnumber as to how far an aircraft can go and fight… If you wish to compare military aircraft in such a way, despite the futility of such, as I’ve just described with SO many variables that HAVE to be considered, then official, open source information on combat radius, is the best to use, IMHO…

    How do you “interpolate” so much different data? the data availble are sparse att best.
    even measuring milage on a car is a problem…

    in reply to: Rafales for Brasil #3, Cachorro-quente! #2388329
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    er, just for information, engine making isn’t just about playing a giant 3D puzzle… there is the know how in heat resistant treatment which isn’t given just like that.

    Snecma sold plans for engines in the early 1980 to the chinese… even today, the chinese engines don’t have the durability of the snecma made ones from 25 years ago… simply because their aft turbine pieces can’t stand temperatures involved… and it’s civilian engines which don’t use such high temps as the military ones.

    brasil may buy spares, but if they don’t know how to prepare the pieces themselves, they’ll rapidly have to import more and keep doing so.

    where not talking about building engines, we talk about integration of one.
    but when your on to it,
    How will Brazil absorb the knowlage from Snecma? I the best copier in the world, china, was not enable to…

    in reply to: Rafales for Brasil #3, Cachorro-quente! #2388337
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    Making the plan even more “paper”

    Soon Saab is going to tell brazil to develop its own plane πŸ˜€

    integration is part of building a plane…
    if its a big deal the can manage it in a year or so…thats it. this is not paper. its been made twice, it can be done once more.

    in reply to: Rafales for Brasil #3, Cachorro-quente! #2388405
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    France wants a strategic partner in Brazil while the US want a puppet. Which one do you think is worse?

    Nic

    πŸ™‚
    Sweden wants a strategic partner in brazil as well, so..
    if the exludation of US components is on the agenda then so be it. they will manage it.
    Volvo Aero and Saab chose a cheaper and better suited engine. This is where the crutual american parts goes.
    As fast as it was integrated (a year?), as fast can another engine be integrated.

    in reply to: Rafales for Brasil #3, Cachorro-quente! #2388442
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    @Loke

    the other thing that was then mentionned in France
    was that Embraer would be associated to the design of the
    NEXT, 5TH+ GEN. plane by Dassault. ( Maybe resurgence in
    the media of the “stealth” Rafale programme is to be seen
    as a reminder of this, since from a French perspective this
    was understood as a live but longer-termed item. )
    Now how well would the “coalition” of SAAB fans from Brazil
    argument for industrial development stand up to that?
    Duh! Collaborate on a future fighter with input from experience
    in making a 4.5+ gen. one or collaborate on a redesign of a
    4.5 gen one, period?

    SAAB has one big advantage in the time being there for the
    Brazilians to join in their NG but in the long run, it is not so.
    .

    I do not think Dassault or EADS or SAAB soon be making a “5gen+” fighter, the focus of today is UCAV (ex. Neuron for dassault and Saab). What that gives the future will see.
    Both Dassault and Saab(ex. the korean offer) do concepts studies and RnD in the meantime of future fighters. But i doubt any of the europeans are going to do it by them self anymore.

Viewing 15 posts - 766 through 780 (of 1,400 total)