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Loke

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  • in reply to: Canadian Fighter Replacement #2139531
    Loke
    Participant

    Your right of course, it is wishful thinking that the Gripen NG could actually achieve those ranges. The actual reports from Brazil and the Swiss eval have shown that the actual combat radius to be far lower than what Saab has stated.

    What actual reports from Brazil?

    In Switzerland I believe the point was that they were looking at a scenario that required flying at supersonic speeds, thus Gripen E will be limited to the supersonic drop tank only. Also, flying supersonic of course the fuel consumption is much higher than subsonic. Thus the “Swiss reports” probably do not say much about the specific (optimal) scenario that Saab described.

    It is furthermore my understanding that the Swiss in the end decided Gripen E range was sufficient to meet their requirements.

    in reply to: Canadian Fighter Replacement #2139534
    Loke
    Participant

    “Gripen NG avionic system is equal to the F-35…. Because it is new”- No, as I posted in the other thread. The FMC/TMC/ video processors were flying on the Gripen C in 2010-11, the system is the same as Saab offers for commercial market. The dated databus standard limits the speed and amount of information the sensors can share with TMC and information going to pilot. It is akin to buying a smart TV and HD DVD player then connecting via A/V cable jacks, and dial up internet (more like DSL considering the research done in sending “packages” of data via MIL-STD-1553). What Saab has done right is the integrated/federated software. They’ve created a system that is easy to add new hardware and software standards.

    Ahem, what makes you think Gripen E will have the same data bus as the Gripen C?

    I have tried to find info on which databus they will be using, so far I did not find anything very specific, other than statements about “ultra-fast data bus” and statements about “improved data bus structure” — this together with hints dropped by various Saab employees indicate that Gripen E will have state-of-the-art data bus structure.

    Also the software will be significantly upgraded — after all they are shifting the first flight by 6 months to fully qualify the software first. That would not have been necessary had it been only a minor software upgrade.

    Will the avionics be “comparable to F-35”? I don’t think so however I expect it to be fully on par with what is found in the Rafale; in some areas stronger, in other areas slightly weaker, but overall similar technology level and similar capabilities. Also I expect in particular the EW suite to be in the same ballpark as SPECTRA; if you look at what senior Indian officials have said regarding Rafale, they believe it will be able to go up against the J-20, in part because of their strong confidence in SPECTRA. Gripen E should have similar capabilities (is also indicated from the Swiss leaks).

    in reply to: Canadian Fighter Replacement #2139694
    Loke
    Participant

    THe most recent from Saab on Gripen E’s range:

    The maximum combat radius for Gripen NG on an air-to-surface configuration is approximately 800 nm (1,500 km). This is defined as flying to a target, releasing air-to-surface weapons, and then returning to home base. The actual combat radius depends on the configuration of the aircraft’s external stores, its profiles and the availability of reserve fuel tanks.

    Presumably this is with the maximum number of external tanks, and with a relatively light load of a2g munitions.

    Another profile:

    Mission: CAP
    Radius of action: 500NM
    Time on station: 100 minutes

    http://saab.com/globalassets/commercial/air/gripen-fighter-system/gripen-ng/technical-brochure-gripen-ng-english-ver.2-jan-2015_low.pdf

    Edit: this last one is actually slightly less than what was indicated in 2014 in the AviationNews database:

    Combat Air Patrol, 2 hrs. on station: 559 mi. (900km)

    http://aviationweek.com/site-files/aviationweek.com/files/uploads/2014/09/asd_09_25_2014_jas7.pdf

    Still these should probably be considered as “ballpark figures”

    in reply to: Canadian Fighter Replacement #2139722
    Loke
    Participant

    They would have to load less fuel if they did, since 6 AAMs puts it above MTOW

    How much does 6 AAMs weigh?

    in reply to: Canadian Fighter Replacement #2139724
    Loke
    Participant

    Not sure if it’s actually be all that surprising. It gives the Gripen E a fuel fraction of around 0.43 by using up most of the available payload, leaving just enough for 4 missiles (and a recce pod if desired), putting it at its MTOW. It’s almost like the Rafale carrying 3 2000 L tanks, except the Rafale can still carry thousands of pounds of weapons still.

    Rafale is much bigger than Gripen E, and furthermore Rafale is one of the (Western) fighters with the most impressive range/payload specs out there.

    However the impressiveness of Rafale should not diminish the impressiveness of Gripen E! Which is, after all, in a lighter weight class. It is a bit like in boxing; there is a reason why there are different weight classes in boxing, and comparing a boxer in a light weight class with a boxer in a higher weight class is very tricky (and may even reflect poorly on the person doing the comparison, unless done carefully….)

    in reply to: Canadian Fighter Replacement #2139771
    Loke
    Participant

    No, they didn’t. Slide is from Defesanet.

    From Defesanet:

    Thanks to its larger fuel tanks, the Gripen NG, in the Combat Air Patrol configuration, reaches a combat range of 700 nm (nautical miles), or 1,300 km, from the base of operations, with more than 30 Minutes “at the station”.

    Google translated from: http://www.defesanet.com.br/fx2/noticia/13530/GRIPEN-NG—Principais-Caracteristicas/

    in reply to: Canadian Fighter Replacement #2139773
    Loke
    Participant

    If the Gripen E can do a mission with 1,300 km radius with 30 minutes on-station I think that is pretty impressive for such a tiny bird.

    However it is not really something Canada is interested in, for a number of reasons as already mentioned.

    in reply to: Canadian Fighter Replacement #2140279
    Loke
    Participant

    No, they didn’t. Slide is from Defesanet.

    Where did they get it from?

    in reply to: Canadian Fighter Replacement #2140282
    Loke
    Participant

    Actually, if you want a long range western fighter, there are two choices: the Rafale and the F-35.

    What about the latest F-15E with CFTs?

    in reply to: Canadian Fighter Replacement #2140606
    Loke
    Participant

    Are we still discussing this!??

    Gripen is a lightweight fighter, suitable for some countries and some scenarios but not for others.

    If you want a “long-range” a2g fighter look at Rafale, F-15 or F-35.

    in reply to: SAAB Gripen and Gripen NG thread #4 #2140930
    Loke
    Participant

    Brazil has revealed plans to invest nearly $5bn in the Gripen NG project, which has already secured BRL1.5bn ($413.2m) as part of the 2017 budget.

    The project includes the procurement of 36 Gripen NG fighter aircraft to equip the Brazilian Air Force.

    Delivery of the aircraft will begin in 2019 and will continue throughout 2024.

    Brazilian Defense Minister Raul Jungmann said: “The resources are guaranteed for the project to follow its schedule, which is going very well.

    “The understanding of the Brazilian Air Force was that the best project for Brazil, for the defence of Brazil, was the Gripen.

    “Today, we can prove that, in fact we have taken the best option.”

    http://www.airforce-technology.com/news/newsbrazil-plans-to-invest-5bn-in-gripen-ng-project-5682445

    in reply to: Finland Air Force #2141524
    Loke
    Participant

    The article says, what everyone around here has been saying for a long, long time, its a straight one between the F-35A and the Gripen E.

    “Valet skulle då stå mellan F-35 och Gripen.”

    Yes I noticed this is what they are speculating.

    I was thinking along the same lines however now I think it is mainly between the SH and F-35 and Gripen being third not second in the race. I may be wrong of course.

    in reply to: Finland Air Force #2141601
    Loke
    Participant

    HS reproduces an anonymous source in the government circles that says that if two planes with equivalent properties facing each other in the final, so weigh heavier security policy than price.

    google translated from: http://online.vasabladet.fi/Artikel/Visa/123550

    The US is more important to ensure Finland’s security than Sweden (who cannot even defend herself); thus the most likely winners (in order of probability) will be:

    1. F-35
    2. SH
    3. Gripen E

    Rafale and Typhoon are out; too expensive, and no reliable security partners.

    in reply to: F-35 News and discussion (2016) take III #2141604
    Loke
    Participant

    Supersonic wise,I dont think any others aircraft accelerate better than F-15, despite its appearance

    I am no expert on acceleration and such things, but I am surprised to hear this; I would have thought the F-22 and probably also the Typhoon would out-accelerate the F-15?

    One of the most impressive moments of the sortie was a demonstration of the Typhoon’s spectacular acceleration. After reducing our speed at low level to 200kt, my pilot applied full afterburner, bringing the aircraft up to just above M0.9 in less than 20s. The throttles had to be brought back rapidly at the onset of audio transonic warnings to prevent the aircraft from going supersonic, but the brief burst of full power underlined the performance that will be on hand during frontline operations.

    Such is the excess power capability of the Typhoon’s two Eurojet Turbo EJ200 turbo*fan engines that the aircraft will achieve supersonic speed in dry power and a climb if not reined in.

    https://www.flightglobal.com/news/articles/eurofighter-typhoon-special-storm-force-training-213442/

    in reply to: Canadian Fighter Replacement #2141674
    Loke
    Participant

    If one is planning for potential war situations and not just for “peace” then there may be strong arguments for having more than one air base in any case: Redundancy.

    If you put all your eggs in one basket then you are creating a potential weakness in your defence. If that one base is destroyed then all your air force is gone as well…

Viewing 15 posts - 466 through 480 (of 3,001 total)