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robban

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  • in reply to: Saab Project 2107. #2444095
    robban
    Participant

    >>LOL

    I think such intake position has problems with engine airflow at high AoA, as well. But then again, judging by the wing’s chord, I’d say P2107 didn’t have spectacular AoA abilities, anyway.
    The wing reminds me of F-16’s wing, except it has angled trailing edge. It’s possible that the wing is the prime contributor to good sustained turn rate, since it less draggy (like F16’s wing too), than Gripen’s production delta.

    It’s very interesting layout and if you manage to find any background data or design concept why did designers even bothered to build this layout, be sure to post it…:)

    Well, among other things the air force wanted maneuverability, good turning performance. The 2107 offered that. The reason behind the intakes position(I’m speculating here) has to do with Swedens road based operations. It offers minimal risk of dirt entering the engine. A very important point indeed. Low slung intakes such as those found on the F-16 or J-10 are obviously not suitable for road based operations. The side mounted intakes on the Gripen were good enough.

    As mentioned above the air force wante good turning ability, but they also demanded low transonic and supersonic drag, good supersonic turn performance, as well as low a landing speed(short take off and landing). The 2107 fell short here, and the unstable delta/canard P2110 was chosen in the end.

    in reply to: Saab Project 2107. #2444107
    robban
    Participant

    Nice…

    My 3 objections:
    1) No rear visibility
    2) Difficult to hide engine’s compressor (major portion of head-on radar signature)
    3) Lower top speed opposed to chosen layout.

    Anyway, I didn’t see this layout since Heinkel’s Salamander. It’s very interesting SAAB even thought of building such a plane.
    Do you have any more data on it, perhaps? 🙂

    Thanks Cola!:)

    The P2107 advantages were few compared to the delta/canard equipped P2110. One of the pro’s was, thanks to the position of the intake, missiles could be carried on the forward fuselage slightly behind the radome, and it didn’t have to be built unstable in order to achieve good sustained turn rates. The position of the intake however was deemed a great risk, and due to the 2110’s superior speed, superior supersonic maneuverability, as well as lower drag it was eventually scrapped.

    As for the poor rearward view, perhaps they could have gone the “Clint Eastwood MiG-31 Firefox” way? Rearward facing cameras.;)

    in reply to: Gripen NG beats SU-35 in a2a #2452284
    robban
    Participant

    There in lies the real secret of how 4.5 generation fighters have done so well vs earlier 4th generation fighters in exercises. For all the hype of the superior flight performance of the Eurocanards, for the most part that flight performance superiority only really matters in a WVR non HOBS fight (which is not realistic for future near peer air combat). But where they really get their high kill ratios is due to their reduced RCS (which is actually to a greater advantage in most exercises due to most exercises being conducted in clean or near clean configuration).

    It is also the primary reason why the F-22 & F-35 will have a similar or greater advantage over 4.5 generation fighters. For all BS that 5th generation naysayers thow out about stealth not being a game changer, since most of them are a naysayer to some degree or another because of their love for their favorite 4.5 generation fighter & just can not stand the fact that there is something better out there in 5th generation fighters, it is the greatest advantage their 4.5 generation fighters have over earlier generation fighters. 5th generation fighters have taken that advantage to much greater level & is an advatage over even their 4.5 generation fighters.

    That would be to hugely simplify things IMO. Sensor fusion, and in Gripens case a datalink capability without peer greatly enhances ones survivability in air to air combat. Having a small RCS is certainly a good aid, but it´s not the absolute sollution you make it out to be. However when put together with other advantages avaliable to the 4th gen fighter, it makes for a superior package. IMO.

    in reply to: Farnborough Air Show 2008, Wed, Fry, Sat and Sun #499446
    robban
    Participant

    Nice and crisp close ups! Lovelly pics! The Vulcan is a beauty!:)

    in reply to: Göteborg Aeroshow 2008 #499451
    robban
    Participant

    Excellent photo

    Thanks Matt! Be sure not to miss the link beneath the picture!:)

    in reply to: Best Fighter of the 70s #2487688
    robban
    Participant

    IMO the Viggen is more of an 80’s fighter aircraft. The Draken being the main fighter of the RSAF in the 70’s.

    robban
    Participant

    The F-35 is a 5th Generation Strike Fighter

    What is 5th generation in the US is 4th generation in Europe. The Viggen for example is in Sweden regarded as a 3rd gen fighter, but it is just as advanced as the F-15 and F-16(or even more so).

    By the way I think you have your Fighters Generations all mixed up. As I stated the F-35 is a 5th Generation and the F-16 is a 4th Generation. (regardless of the block) While the Gripen would be considered a 4.5 Gen basically in the same class of the Super Hornet.

    There are no 4.5 generations. It’s probably something made up by Lockheed just to fool the public that their aircraft ar more modern than others. Let’s say there is a 4.5 gen fighter. All of a sudden you equip it with some new ground braking technology, is it a 4.6730 gen now, who decides? Crazy.:rolleyes:

    Btw, the F-35’s aerodynamics makes it a subsonic bomb truck. It can’t match the Gripen, or any other Eurocanards in the supersonic realm.

    robban
    Participant

    Sorry, the Gripen in any form is no match for the F-35 in capability.

    Wishfull thinking. Both are 4th gen aircraft with a highly advanced digital infrastructure.
    The F-35 is just a very late 4th gen aircraft. It’s considerably larger, heavier, more expensive to own and operate, with inferior supersonic maneuverability and performance.

    You are comparing a sluggish specialized bombtruck to a more versatile lightweight fighter attack and reconnaissance aircraft. Sure the F-35 has its advantages. But on the whole it’s just another overhyped US aircraft. You even compare the Gripen to the 3rd gen F-16 Block 52. They are not in the same league. Sure, the F-16 might be able to carry slightly more ordnance, but in terms of survivability and overall mission effectiveness it doesn’t hold a candle to the Gripen.

    in reply to: Top Gun ===> 2 #2463789
    robban
    Participant

    I hope Tom Cruise says no. One of the greatests things about the movie Top gun was that there was no sequel. Besides, with the F-14 retired, what plane will they use as the star? There are no cool planes avaliable in the USN or USAF inventory anymore. The F-35 is just too ugly for a movie, it certainly cannot compete with the F-14 here. Perhaps if they use Jackie Stallone as the female Top gun student, the F-35 might not look so bad?

    in reply to: SU-35 vs. the European fighters #2468042
    robban
    Participant

    First You have 7 ton heavy JAS-39C with barely 2.2 tons fuel. I doubt with external loads it performance will be any good.

    It seems that you asume the Gripen with its small size has comparable drag, fuel consumption and wingload as the large Su-35?

    in reply to: worst looking new two-seat European aircraft? #2475224
    robban
    Participant

    what is the ‘thing’ betweem the canopies??

    A periscope for the instructor, to aid during landings. There is one on each side.

    in reply to: worst looking new two-seat European aircraft? #2475426
    robban
    Participant

    …very 60-ish looks.

    Well, it first flew in 1967 so,,, yeah.

    Not as sleek as the single seater, but it sure looks mean and powerful!

    http://img.photobucket.com/albums/v486/robban75/sk37-3.jpg

    in reply to: worst looking new two-seat European aircraft? #2479370
    robban
    Participant

    Sleek and beautiful, yes! Ugly, huh?:confused:

    http://img.photobucket.com/albums/v486/robban75/28.jpg

    http://img.photobucket.com/albums/v486/robban75/10.jpg

    The two seater Rafale is slightly less beautiful compared to the single seater. The two seat Eurofighter looks kinda cool, but perhaps not beautiful. The MiG-35 is contrary to the single seat MiG-29 rather ugly.

    in reply to: Your favourite what-if fighter #2480350
    robban
    Participant

    The “Snabel-Viggen” would have been interesting. Saab was seeking collaboration with MBB in building a test aircraft from the Viggen in order to test high AoA performance. The Viggen was supposed to be fitted with vectored thrust, down sloping intakes and fully moveable canards. IIRC MBB was all for it but Saab thought it would be too costly in the end. The X-31 was born in stead.

    http://img.photobucket.com/albums/v486/robban75/snabelviggen4.jpg

    in reply to: That doesn't look right… #2486486
    robban
    Participant

    http://www.airplane-pictures.net/images/uploaded-images/2007-12/8462.jpg

    Mmmm, beautiful!

    This on the other hand….

    http://img.photobucket.com/albums/v486/robban75/JSF23.jpg?t=1214204089

Viewing 15 posts - 166 through 180 (of 360 total)