dark light

Marcellogo

Forum Replies Created

Viewing 15 posts - 91 through 105 (of 1,560 total)
  • Author
    Posts
  • in reply to: Su-57 News and Discussion -version_we_lost_count!- #2121168
    Marcellogo
    Participant

    To put an instantaneous end to all nonsense spewed in this thread, let’s have a look to a simple, objective data: average age of different fighters/interceptor/ tactical bomber fleet.

    Marcellogo
    Participant

    It seems me that this thread have derailed great time in meantime I was away.
    Above all it became, thanks to someone to the usual “Us against you”.between RussiaSTRONK-ist and That’s’Murica-ist involving also persons that were until now reasoning in a rational way.
    So let’me reply just to the posts that kept themselves on the old track.

    On this a particular mention to XB-70 #43 post that explain how state-ot-the-art avionics of F-35 with its emphasis on sensor- and data-fusion can be a real help in many scenarios involving both A2A than A2G.
    Above all because he IMHO correctly point how this capability is not exclusive to it but can involve all planes of the same gen (and I would add also other planes actually in production/deep modernization process).

    I would put a less emphasis on internal carrying of weapons, planes like Mig-31 or Typhoon carry their missiles in semi conformal recesses and also in other planes designed for aerial combat there is always been the research of the least possible impact of weaponry to general performances, so an advantage exist but is not so decisive.

    .

    .

    in reply to: USA forbid Croatian-Israelian F-16 deal. #2121626
    Marcellogo
    Participant

    [ATTACH=JSON]{“data-align”:”none”,”data-size”:”large”,”data-attachmentid”:3846965}[/ATTACH]cedc7e713f178cec694c.jpeg

    This letter dated from 3 december by Lockheed-Martin to Croatian MoD show how almost until 3 december all thing were proceeding fine and that there was no objection from their part to the deal, so it seems that objections were on state, not company level and surfaced quite late.

    Marcellogo
    Participant

    [USER=”1724″]djcross[/USER]
    IMHO the intercept scenario requisites were well written and show how such missions have to be planned and carried out, not looking at abstract performances like it was a F1 race but time needed to get at a certain distance, at a certain quote in a certain asset.
    Quite surprised that they have cancelled it, taking off in AB is just a standard procedure for such missions… in any case if true, another of the many features/requisites that they have sacrificed to the altar of “all around stealth”

    @halloweene

    So, please, if you have let’s publish them.

    Marcellogo
    Participant

    [USER=”41059″]halloweene[/USER]

    hard to tell as it depends from initial condition: Zulu Station or Scramble?
    In the first, pilot is already onboard and plane is in the open, near to the designated point for taking off, in the other the pilots making part of the actual shift are in a building, in normal dresses and as soon asalarm start they have to put on their High-G dress and run to the hangars where their own planes are kept ready.

    Marcellogo
    Participant

    [USER=”40269″]FBW[/USER]

    Thank for the well argumented reply.
    Well 1,76 mach is still superior than F-35 max velocity.
    I agree you about most of thing you said, dim (i would say realistic ) view on supercruise.
    Just two things, Mig-31 was not designed with only high mach, high flight on mind, compared to Mig-25 it sports an high ( relatively to military standards, obviously) bypass turbofans instead of turbojets and a lot of other details were changed in order of being able to cope with low flying cruise missiles .
    Given that such weapons are quite slow the possibility to engage them at a lower quote and speed was contemplated in the design but even in this case the Mig-31 would have started to approach them as high and fast as possible to slow down later.

    The other, allow me to repeat myself in hopefully a clearer form: supersonic drop tanks were put on interceptor/fighter planes in QRA not to increase range in cruise mode but to allow performing initial take off/climbing/transonic pass in full AB without wasting the internal fuel, relative drop on performance due to increased drag was considered more than balanced by such a possibility.
    Obviously, once the plane would have reached such a speed were the tank’s drag would have impaired acceleration, the tanks would have been dropped.

    [USER=”71228″]garryA[/USER]
    Thank to you also, good posts overall but in this case I have to dissent:

    Well to be fair that also faster than Eurofighter, Gripen NG, Rafale but they are still used in interception role.

    At cost to be pedantic,comparison was between the max AB speed of the F-35 with the maximum supercruise speed of F-22,, so almost in case of the Typhoon and Gripen the same didn’t apply.
    Hence also the referral to the MIG-31 that have no supercruise at all but can travel for a longer distance at an higher speed than even an F-22 in supercruise, just to show there is more than one way to skin a cat (yet the 720 km at M.2,32 is not correct, that is the range for 2.03M).

    That to show LMFS not necessary have low missile load, because it don’t have to be in stealth configuration all the time, and of course, if you carry more missiles, your aircraft will be draggier that goes for all aircraft and F-35 is no exception, but there are intercept mission where you might want to trade speed for the number of missiles, for example: if your aircraft carrier is being attacked from extended range by cruise missiles

    And the mine’s own was to remind you that similar high load arrangements, highly debatable also when it comes to A2G missions make absolutely no sense at all in an A2A one, in any of such missions, so let’s imagine on an interceptor that as a general norm took off with a very limited payload in order to reach its own mission quote and speed a.s.a.p.

    Because it seems me that the thing that somewhat is missing there is a certain dose of historical memory: on how such missions were performed, what were the real performances requested to an interceptors (of better said to the different forms such formula has took as time go by) compared to a standard fighter, on how and why a tail-on engagement was always the preferred form of approaching bandits, of how A2S missiles work and so on…

    Marcellogo
    Participant

    Uuuh seems me a quite interesting debate is taking place, so allow me a series of one line response (or just a little more) to some of the (IMHO) most interesting point.
    Let’s begin with Judgefortescue.

    – Are you aware that F-22 supercruise speed (1,83) is superior to the maximum one of F-35 and the autonomy of a MiG-31 (that is not supercruise capable) at mach 2.03 is superior to the one of F-22 in supercruise?
    -it seems me you inform themselves only trough LM brochure. everything is outstanding unparalleled, out of this world, etc, etc. Problem is that you wil pick one similar brochure from Boeing, Saab, Sukhoi et alia they would use similar hyperboles to describe their own products. Said so, surely the thing you describe can be VERY useful but thinking that something like DAS can see every rivets, joint and so on …a little more realism,please.

    Real question: Have found any data about F-35 climb rate? You know, because it’s years I have searching internet for even an hint of it: nothing, nada, zip, zero. Someone know it better?

    [USER=”143″]eagle[/USER] and [USER=”9270″]Levsha[/USER]

    Eagle is right.
    This was a classical brochure trick and a quite dirty one: just reach your max velocity, turn AB down and try to remain supersonic the longer you can, after this claim that your plane is able to supercruise at a velocity of…for a distance of…

    Being able to remain at supersonic velocity for a limited distance is not supercruising at all, you have to keep a stable speed without using afterburner.

    A.t.c. using AB to go transonic doesn’t impact at all such a capability, it is just the most practical way and above all the fastest one way to get the thing done.

    Actually,in a QRA every part of the interception run from the take off to the initial climb to breaking the sound barrier was made at full AB without any interruption.
    That’s also the reason because in almost every scramble or even normal video of an interceptor in a operative mission you will see them carrying a quite limited load of missiles but almost one supersonic tank, even onboard the long range F-106 ( or better you can see them on western ones but it’s because soviet videos are much less and usually refers to prototypes or display planes but many of their models carried them the same in operative missions): they are way bulkier than missiles but allows them to reach max quote and go supersonic in the fastest way possible
    without wasting the onboard fuel.

    Once done, they would have ejected it…

    …yes, seems obvious but when faced by such arguments like this:one

    while 4th gens have lower speeds due to drag created by targeting pods, fuel tanks, etc

    you are forced to remind it the same.

    @GarryA

    Seriously, what is this monstruosity?

    A lot of complaint about the drag of missiles on a 4gen plane and they have made an image of an F-35 with FOUR DOUBLE PYLONS (plus two AIM-9X just to look cooler) on its tiny, high load wings?

    Four…double pylons, …on the wings, …in an interception mission, for heaven sake, garry… have you the faintest idea how much drag such a load conformation comport?

    I’ll give you a reminder: soviets ditched such an arrangement because they found that the one they made for the R-60 was too draggy… yes, the R-60 a.k.a. the AA-8 Aphid.

    in reply to: USA forbid Croatian-Israelian F-16 deal. #2121967
    Marcellogo
    Participant

    I think the actual contrary, Boeing want to keep it’s own assembly line open at all cost so any TPT of their own hardware is a bane for them.

    in reply to: USA forbid Croatian-Israelian F-16 deal. #2121976
    Marcellogo
    Participant

    Last act for now:
    https://www.vecernji.hr/vijesti/izraelski-i-hrvatski-duznosnici-razgovaraju-o-spornoj-nabavi-borbenih-zrakoplova-1293747
    Udi Adam, General Director of Israeli minister of defence has come to Croatia to formally announce the failure in obtaining TPT permission, taking full responsability for the bid’s failure and offering a last minute alternative solution in the sense highlighted by bring-on-it.
    However, such a solution was not even taken in consideration by a croatian government in full “mali smo al’nas ima” attitude…

    So here’s the actual outcome :
    the deal is now undone,
    we are back to square one,
    but we’ll bow head to none
    and will not quit on trying
    and we’ll keep’em flying…

    Marcellogo
    Participant

    F-35 was not designed with interception missions as a requisite given that both Usaf than the major partners involved i.e. Italy and Uk already have (or thought to have) this role covered respectively by F-22 and Typhoon.
    And yes F-35 is not just a good all rounder: it is an excellent A2G plane having capablity in this role akin to past generations specialized heavy strike planes like Su-24, F-111 or Tornado being in the same time capable of act as a true multirole fighter.
    Interception and air superiority roles are a completely different scenario and would require a whole different plane layout
    F-35 has an excellent engine and it is said to have a superb subsonic acceleration so it would not be hapless also in those arena but it is definitively its own playground.

    in reply to: USA forbid Croatian-Israelian F-16 deal. #2122045
    Marcellogo
    Participant

    Prime minister Andrej Plenkovic has made a statement recalling how official delegation were send to both Israel than to USA as soon as deal was signed to define the matter so he can only wonder how something was changed ten months later, so effectively something has happened in the meantime i.e. what was presented as one exceptional deal made between a country that have a “special relationship” with USa and another considered of considerable strategical importance(and that has recently benefited of a quite exceptional US second hand handling from the states) has became the standard offer israeli do around the world.
    So, it seems that an initial green light was given, albeit unofficially and that all the blame for the fail has been put to Israel reckless sale politics.
    Now let see how the question will be settled: if things are in the terms bring-on-it have said i.e. that is LoMart that have to take back planes in the pristine status and not Israel we can consider the contract as well as defunct.

    in reply to: USA forbid Croatian-Israelian F-16 deal. #2122054
    Marcellogo
    Participant

    For what i could read from the vecernji list article (I understand croatian) the blame is put almost all on Israel,side given it was them that was not compliant to their previous assurances of having permission from the holders but above all to have offered similar contracts all around before to have completed the first one so spurring the USA reaction.
    Only complaint in confront of USA is to have denied this option to Croatia also after that the deal was concluded following an international tender in which also USA made an offer i.e. to not have signaled the eventual problem in the proper moment but to have changed their own mind in a second time.
    So, no need to fear any deterioration of bilateral relation Croatia/US for this while instead the official response to Israeli offers has been neat and firm.

    in reply to: USAF not F-35 thread #2122609
    Marcellogo
    Participant

    For what I get from the #1328 post allegate, main reason of the move seem to be motivated by industrial reason i.e. to keep Boeing military related assembly lines working inbetween the end of F-15E and F/A-18 orders and the transformation of the T-X prototype into a real operative plane and so do not give LoMart a monopoly over military planes.
    Acquiring a F-15 F&G version together with the SuperHornet would have had a lot of sense, now a F-15X would just be absurd.

    Ok, still less absurd than USAF not acquiring any fighter plane between the 250 F-16 block 50/52 and the F-22, less absurd than thinking planes whose production ended in 1985 and intensely used until now would last until 2030, less absurd than thinking to restart F-22 production, way less absurd than thinking a 1.6 mach plane can work as an interceptor…

    So go, let’s buy it a.s.a.p. as such move will fall perfectly in line with the course of all USAF development and acquisition strategy from Bush sr. presidency until the present day…

    in reply to: 2018 F-35 News and Discussion #2122681
    Marcellogo
    Participant

    I didn’t think that switching from Pesa to Aesa would be so simply like just changing a simple antenna: former has a separate radio wave source while the latter has integrated TRMs.Disposition and weight imbalance are very different.
    Passing from a conventional scanning rdar to Pesa, could involve just swapping an antenna but ther is the whole disposition of components to change.

    in reply to: USAF not F-35 thread #2122722
    Marcellogo
    Participant

    https://forum.keypublishing.com/filedata/fetch?id=3844401&d=1545506650
    It’s sorta remind me something…

    Aaah, found it…
    http://www.cncsaga.com/pixaddict/1271667596Koalitsiya_SV_10_M.jpg

    Sorry, I JUST couldn’t resist…

Viewing 15 posts - 91 through 105 (of 1,560 total)