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  • in reply to: Stealth is russian invention ? #2285289
    topspeed
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    Russian engineer is very difficult to convince officials to allocate money for the project, which is not in NATO. This could very rarely, such as Rostislav Alexeyev, for the construction of WIG.
    However, the Russian long been engaged in “low signature” ships. Photos 1976

    There were also other masters in this field in Russia…and a finn already in 1932…engineer Toivo Kaario.

    http://img805.imageshack.us/img805/7190/80219.jpg

    in reply to: Flying Coffin ..what #2285291
    topspeed
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    An excellent example which it shows that the combat enviroment, the quality of pilots and the tactics can till the balance into the opposite direction.
    Till 1943 Russian built fighters suffer from a total lack of radios nearly (limited to leaders only) or reliable ones even behind that year. Going for the leading Russian fighter at first, the unit lost all coordination/control and its bigger numbers did not work in their favor any longer.

    And the source of this please ?

    The Buffaloes were little by little switched to Me-109 G-2 and G-6s in the top squadrons.

    Finns scored at best 2 x Airacobra a day even in 1944 with a Morane MS 406.

    An Airacobra was scored even with a biplane ( warbooty I-15 ).

    Last kill with any AC was Buffalo against german luftwaffe in 1945 IIRC.

    There were no YAK-3s in finnish skies since the armistice was made in 1944. La-5 was a match for an Me-109 G.

    But certainly the 44/1 and 33/1 kill ratios with Fiat G.50 and Buffaloes were due to the fact that opponent were flying I-16s and I-15 ( and Chaikas etc ) etc with very little experience.

    So flying coffins for the russians were possibly just I-15 based planes and a finn scored an Airacobra with such machine ( I-153 below ).

    http://russian.warbirdsresourcegroup.org/images/i153-3.jpg

    I’d say there is luck involved too and strong will to defend.

    in reply to: Flying Coffin ..what #2285508
    topspeed
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    Brewster F2A-3 Buffalo

    This is curious..FAF scored 33/1 kill ratio with Brewsters and even made a wooden copy of it; http://fi.wikipedia.org/wiki/VL_Humu

    in reply to: Size of the new 5th gen fighters…too big !? #2285514
    topspeed
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    🙂

    Is that Scorpion PZL-230 ?

    in reply to: Flying Coffin ..what #2285516
    topspeed
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    Prove?

    He meant the 38% of the accidents with 104s in Italy..not the YAK-38 that had a e-seat second to none.

    in reply to: Size of the new 5th gen fighters…too big !? #2285597
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    Locheed folks with Kelly Johnson have already tested “Velociraptor” up to MACH 3.5…and seemed pretty happy about it…5 metric tonne ship went beyond Mach 3 at 6.67 kN force !

    http://upload.wikimedia.org/wikipedia/commons/1/1a/M21Ship2-cropped.jpg

    I have been modelling my ships flight caracteristic in my head for nothing.

    http://en.wikipedia.org/wiki/Lockheed_D-21

    in reply to: EADS MAKO/HEAT. A possible new emerging market? #2285658
    topspeed
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    And therein lies a contradiction. There are a few cheap ways to make an aircraft less observable, but most ways that are truly effective, e.g. RAM can’t be done on the cheap.

    I think you’re 100% correct that there is a gap in the market for something that fills the same niche the F-5 once did, but then again we probably already have it. Versions of the F/A-50 from KAI, M-346/YAK-130, or possibly even the JF-17 could fit this bill quite nicely, depending on who you want to do business with.

    Neither of these are LO, but this would probably make them unaffordable for most, and it’s better to have non-LO aircraft than none at all.

    I figure the key elements in STEALTH are:

    1. design ( deflecting surfaces )
    2. material ( absorbing the radar signals )
    3. size ( smaller aeroplane is by harder to detect )

    I figure designing is hard…but making the plane smaller is relatively untried territory so far.

    Faberge Eggs were small…I’d try to study them first.

    in reply to: Flying Coffin ..what #2285660
    topspeed
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    And proportionately less than many others. The Harrier, for example, was very poor. Much of the ‘104 problem was about training, culture, etc and not the aircraft. Remember, it was cutting edge at the time so no wonder there were problems!

    RR

    115 deaths in Germany ( 292 crashes ), Italy lost 38% of them ; http://en.wikipedia.org/wiki/List_of_Lockheed_F-104_Starfighter_operators#.C2.A0Germany

    in reply to: Size of the new 5th gen fighters…too big !? #2285696
    topspeed
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    Your reclining seat.
    Go sit in a chair that reclines as far as yours is supposed to and try to look over you shoulder.
    You cannot.
    The reclining pilots seat seems like a good idea until real world physics and how the human torso functions are considered.

    High speed ejection is easy to talk about but in the real world is a fifty-fifty proposition at best.

    What would happen if your aircraft suffered such an incident, beyond the probable funeral for the pilot?

    The U.S. Air Force had an official edict–SPEED IS LIFE.
    Another would be– Size capable of withstand heavy damage and continue to fly is life.

    Yours is a flying coffin.

    So are you making these up…Size capable of whitstand heavy damage to continue is life.

    You are a poet aren’t ya..a story teller ?

    I opened a topic where you can get yourself edumacated.

    http://forum.keypublishing.com/showthread.php?t=123550

    F-104 had 722 kg/m2 wing loading..V-Raptor under any circumstances won’t be higher than 330 kg/m2.
    http://en.wikipedia.org/wiki/Lockheed_F-104_Starfighter

    BTW: You cannot see from F-35….is that a bad feature ? Is it a flying coffin as well then ?

    in reply to: EADS MAKO/HEAT. A possible new emerging market? #2285701
    topspeed
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    Not really sure where your coming from, but just read around, even gripen is too expensive for many airforces vs capability over existing second hand F-16’s, mirage-9’s, certainly even for many countries considering small F-35 fleets around 12 a/c, that is no airforce, to which additional cheap, yet capable, fighters must act as useful complements.

    I insist…answer me is stealth fighter really by the definition an expensive fighter ?

    I know there are many expensive stealth fighters… one is plated with diamonds and other has cockpit canopy outa gold.

    But does it have to ?

    in reply to: EADS MAKO/HEAT. A possible new emerging market? #2285713
    topspeed
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    As we know any 4+ jet is not cheap. With many airforces, particularly potential F-35 customers, a high-low mix may be the way to go.

    What if EADS fully developed the Mako?

    Some info here: http://forum.worldofwarplanes.com/index.php?/topic/2047-eads-makoheat/

    Could it not potentially be the new LO F-5?

    Hypothetically say most of the preliminary design work is covered. Assume EADS goes all out for a light combat aircraft. Integration of small AESA, ECM systems as developed for the typhoon, updated glass cockpit, HMS etc..

    Advance the airframe to more recent LO techniques, further composite construction, extensive ram, canopy shaping/treatment, further shaping (possible elimination of vertical tail and include v-tail as yf-23 etc). Maybe provide space for internal twin amraam and asraam, LM CUDA could potentially be a perfect candidate. The rcs would surely be useful against 4+ gen gets.

    The jet has 7 external hardpoints, can carry just about any of the latest weapons developed within Europe. IRST as the gripen E skyward G.

    I believe the GE F414M was selected, possibly integrate a TVC EJ200 (more thrust for increased complexity and weight vs original MAKO).

    IF, it could be done with reasonable costs, in a relatively short timeframe by using much of the lastest tech already developed within the EU that we will see on gripen, rafale, typhoon within the next 5 years, surely it would have a market?

    It will invole alot of the original f-35 customers to develop certain components, hopefully lessons learnt from the management disaster of the Eurofighter program would be implemented to speed things up.

    I don’t understand…why and how do we know 4+ fighter is not cheap ?

    I mean elsewhere it has been stated a proper stealth design is also efficient aeroplane…it ought to be cheapest of them all !

    in reply to: Size of the new 5th gen fighters…too big !? #2285767
    topspeed
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    PAK-FA and J-20 with Velociraptor !

    I had to change J-20 figures too since there was a mistake and my plane has grown in size.

    Unfortunately…just by looking at these size numbers my plane ought to have 74.7 kN thrust to be even with J-20.

    T-50 PAK-FA is ( still ) lesser powered but still VR would need 65.8 kN to be even.

    If I may I could use the 10% better cleaniness in calculations and the fact that Velociraptor is just 1/9-1/10 in weight I might get something that indicates something better..also the frontal area in comparison is nearly 6 and just above 5 with Pakfa and J-20.

    Even after these corrections I get the need for power 47 and 41 kN for these biggies. All this tells me that PW307A may not be the ideal engine. Perhaps Honeywell F124 could do.

    Hmmm…my wing is at the bigger Reynolds number area..another correction drops these figures to 37.5 kN and 32.7 kN for PAK-FA ( in my simplified mathematics section ! ). I have a haunch the weight ( lift /drag ) will drop the needed engine power still more.

    in reply to: Rise of the 6th Generation Fighter … #2285776
    topspeed
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    Better let CAC know as well…

    Not to mention Northrop for their NATF proposal and lockheed’s JAST study.

    Isn’t it funny lay man logic don’t reach the facilities that have only people who know math/advanced calculus !?

    in reply to: Rise of the 6th Generation Fighter … #2285791
    topspeed
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    I think only a handful countries can afford a few starships with DE,
    the rest will keep flying old fighters if operational cost allows it,
    and replace with UCAV & GBAD.
    Suffice to say i’m not thrilled.
    http://www.roperld.com/science/minerals/OilPricePrediction.jpg

    This is why I suggest to decrease the size and start real drag reduction studies at all intitutes that have able mathematicians to back it up with striking clever numbers.

    :rolleyes:

    in reply to: Stealth is russian invention ? #2285792
    topspeed
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    Only Soviets could invent the anti-tank dog. :p

    Or engineered man-ape hybrid to work on the salt mines !

    Sorry but that document really blew me away.

Viewing 15 posts - 2,221 through 2,235 (of 2,657 total)