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TomcatViP

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Viewing 15 posts - 2,371 through 2,385 (of 5,621 total)
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  • TomcatViP
    Participant

    Low speed and bring back are two different things. Lately you saw the Raf M taking off with on single CM when the Adl’A did with two…

    Add 30 days of strikes, near peer attrition losses and you get a clearer picture. 😉

    in reply to: Very light anti-tank plane #2171634
    TomcatViP
    Participant

    @Hotshot:

    I am not sure that 3d printing Titanium will provide much ballistic protection. But I might have too much fate in my scholar book regarding eutectic conditions.

    http://www.calphad.com/titanium-aluminum.html

    in reply to: RuAF News and development Thread part 15 #2172113
    TomcatViP
    Participant

    Looks spacious but… No IFR?

    in reply to: Very light anti-tank plane #2172154
    TomcatViP
    Participant

    I think what you are talking about is a warmover of BAEs SABA concept.

    http://www.abovetopsecret.com/forum/thread186160/pg1

    One of the oft heard comments about the concept was the likely difficulty of getting pilots to fly a type with such a modest survival potential in such a high threat environment.

    Better to put the unmanned sensors within ‘3000m’ of target and let them cue the bomb droppers from stand off.

    Yes, when I first read this post I thought that here we go with yet another guy trying to find a sophisticated way to get rid of his late mother-in-law.

    One remark: Working titanium is what makes it expensive (machining, drilling etc…).

    in reply to: F-35 News and discussion (2016) take III #2172200
    TomcatViP
    Participant

    Yes. A[n] (expected) revolution.

    I like this one particularly:

    Also, interestingly, a layer can be composed so an attached computer can read the induced currents in the fibers, making the layer a radar receiver.

    Notice that according to some info here, Russian engineers are following the same pattern (CNT – although not automated placement airframe wise).

    So, what was all that fuzz regarding the L-band? :D. [ProvocativeMode=Off]

    in reply to: Indian Air Force Thread 20 #2174055
    TomcatViP
    Participant

    In case of crash, what happens to the pilot’s eyes? Those cylindrical parts right in front of the pilot’s face do not inspire much confidence…

    TomcatViP
    Participant

    Turning is all about producing excessive lift. High aspect ratio wings provide the best lift to drag ratio (see sail plane for ex.). It’s all about induced drag (refer to your aero book).

    A swing wing fighter enjoy the benefits of a ticker profile. When the wing is swept backward, the relative airfoil is “extended” by the inverse of the cosines of the sweep angle.

    Hence: Ticker airfoil, greater aspect ratio-> better lift. And as we have seen, better lift at less drag.
    Add the the fuselage lift, the staggered wing concept with the tail surface enhanced by the wing downwash and you have a very efficient aircraft in a turn. You can then reduce the amount of power needed to the point that for a given set of perfs, the extra power of new engines won’t see much use if:
    . – you don’t increase G
    . – you allow “some amount” of alt loss in the turn

    My 2 cents 😉

    in reply to: Malaysian B.777 MH One Seven downed over Ukraine. #473935
    TomcatViP
    Participant

    Russia hands over missing radar data

    Russia on Wednesday handed over files about the MH17 plane disaster to Dutch investigators, justice minister Ard van der Steur told MPs.

    ‘A package of information was handed over to the Dutch authorities by the Russian public prosecution department at 3pm Dutch time,’ Van der Steur said.

    Source:
    DutchNews.nl

    in reply to: The 'JUST A NICE PIC…' thread #2175756
    TomcatViP
    Participant

    Gorgeous.

    in reply to: The PAK-FA News, Pics & Debate Thread XXV #2176096
    TomcatViP
    Participant

    By design constraint, the back-end elements of a radar, especially the signal generator are frequency limited.
    Tomorrow, frequency hopping will be a necessary condition for any sustainable radar use. Photonics technologies allow a radar to operate at broad wide frequency without major complexification (hence cheaper and more reliably).

    Also, compactness and light weight made this technology very suitable for radar, planar radar or embedded radar panels.

    Everything is on the links.

    in reply to: General Discussion #256311
    TomcatViP
    Participant
    in reply to: Military Aviation News #2176145
    TomcatViP
    Participant

    Should Sweden and NATO increase cooperation?

    One potential way of increasing intelligence gathering: taking technologies from the Boeing EA-18G Growler design and importing them onto Saab’s JAS-39 E/F Gripen fighter that Sweden plans to bring online in the coming years. That suggestion may have some legs, as Saab and Boeing are already teamed to offer a design for the US Air Force’s T-X trainer competition, and both companies have spoken about the benefits of working together

    Source:
    DefenseNews.com

    in reply to: Military Aviation News #2177586
    TomcatViP
    Participant

    Actually, here, it’s more the private contractor (Boeing) that proved to be inefficient. The GAO reply is full of the lack and misses from Boeing. I have read it all* and it’s not a walk in the park for Boeing that have lagged in many way beyond what made its mark in the past: rigor.

    Notably the request to have its own technical specialist reviewing Northrop design that at the end comes back with no specific remarks despite this being stated in the contest is clearly a miss from higher level management (putting the cart beyond the horses).

    One point however raised concern: the disclosure that the Northrop’design could be somewhat sensitive to manpower cost.

    One a more positive note, we have the confirmation of technology demonstrators having been flown early by each competitors.

    *disclosed part only obviously (and sadly)

    in reply to: The PAK-FA News, Pics & Debate Thread XXV #2178001
    TomcatViP
    Participant

    Yes. But to me (as seen from the screen of my portable), those are not rivet but flushed screw.

    For the Flanker, that was the skin in one manufacturing plant that was thinner than other models. Either this was a cost-saving measure (less material, better margin) or for weight reduction.

    in reply to: Military Aviation News #2178156
    TomcatViP
    Participant

    USMC F/A18C crashes (US)

    “Initial reports say that he had touched down and after he touched down, he needed to eject,” said 1st Lt. John P. Roberts, a Marine spokesman.
    The pilot appeared to have no major injuries,

    Source:
    http://www.marinecorpstimes.com

Viewing 15 posts - 2,371 through 2,385 (of 5,621 total)