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benhongh

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Viewing 15 posts - 16 through 30 (of 146 total)
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  • in reply to: Missing Malaysian Airlines B777 #499189
    benhongh
    Participant

    Lets assume the current data is correct, lets assume the aircraft was still sending out some form of data after 6/7 hours of flight, and based on the data, lets assume the northern and southern routes are the possible headings the aircraft could have taken. Of these two, I find it difficult to believe it could have been the northern route across southeast asia and into central asia, as any airliner flying with its transponders switched off would have been challenged at least once, if not more given the number of countries that route involves. So realistically that only leaves the southern route as the likely route it could have taken for flying so long without being detected, given that it’s mostly over water. If it were my decision, I would look in the southern indian ocean. As to the motive, that can only be answered if/when the aircraft is found, or any of its wreckage.

    To be honest I would expect the investigators to soon figure out the following:

    1. As the Boeing 777 sent out consecutive satellite pings, how many and which satellites did actually received the pings.
    2. If multiple satellites had received the pings, can the location of the sender be more-or-less triangulated (based on signal strength or relative time delay if the clocks on the satellites were synchronised)
    3. If the location of the pings can be more-or-less estimated, did the location change between pings, and if so by how much.

    It was confirmed that the investigators had enough evidence to narrow the MH370 flight path to one of the two flight corridors. To do that, the investigators must have highly detailed data from the satellite which has not been released to the public.

    in reply to: Missing Malaysian Airlines B777 #499474
    benhongh
    Participant

    Wouldn’t a well-organised hijacker have collected and incapacitated all personal communication devices from the passengers, before all else? Surely you can’t track a phone with its battery taken out can you?

    in reply to: Missing Malaysian Airlines B777 #499478
    benhongh
    Participant

    So MH 370 might have been flown to as far as Kazakhstan…

    This certainly sends a terrifying chill down my spine. One can hope, may I say, that the crew and passengers are kept alive to this date.

    in reply to: J-20 Black Eagle – Part 6 #2245436
    benhongh
    Participant

    The J-20’s wing area is not that small…I calculated the wing area using a satellite photo, and it’s probably somewhere between 82 and 87 sq meters, assuming a length of 20.5 meters.

    J-20 deserves a larger wing for its size. By the look of it, it’s going to be a heavy but under-powered bird, I won’t hold my breath for its agility.

    benhongh
    Participant

    Part of the problem he described was that the Su-30MKI’s 3D thrust vectoring was set on a V-axis; it wasn’t true asymmetrical thrust vectoring. This was great for instantaneous turning, but created a lot of drag which slowed the aircraft down.

    [ATTACH=CONFIG]225413[/ATTACH]

    How do the thrust vectoring engines create a lot of drag? I’ll probably accept certain level of loss of thrust through the vectoring nozzle, but drag? Really?

    The primary factors for the sustained turning performance are wing-loading and thrust. Lower wing-loading means you need less alpha to execute the turn, less alpha means less drag squared, which means high thrust in excess. Almost all of the drag comes from the airframe where lift is generated, what little parasitic drag generated by the thrust vectoring nozzle is pretty negligible.

    in reply to: Chinese Air Power Thread 17 #2263389
    benhongh
    Participant

    LOL, the same Kamov who designed the Ka-27, probably the ugliest helicopter flying today?

    To be honest I quite like Ka-27. Oh well love is in the eyes of the beholder, they said.

    in reply to: A WARING #2263396
    benhongh
    Participant

    *warning…

    in reply to: J-20 Thread 8 #2213723
    benhongh
    Participant

    Looks like the fit and finish is of a much higher quality than the Russian PAK-FA. Personally, if I were Russia and India I would be concerned!

    It’s amazing how much imperfection a coat of dark paint can conceal.

    in reply to: J-20 Thread 8 #2213742
    benhongh
    Participant

    2011:
    [ATTACH=CONFIG]224600[/ATTACH]
    [ATTACH=CONFIG]224601[/ATTACH]

    The appearance of the air intake and the forward fuselage cross section shape have slightly modified.

    in reply to: J-20 Black Eagle – Part 6 #2239368
    benhongh
    Participant

    IR or UV images can show different materials in different color depths, could that come from a IR camera?
    Composite radome and tails are comprehensible engeering.
    Still it dosent explain why he used a IR camera in the first place, a new prototype jumped to night flight? that sounds too confident to me.

    You would expect the engine nozzle to glow more than anything else in an inferred image, wouldn’t you?

    in reply to: J-15, what is Russia getting out of it, if any? #2241835
    benhongh
    Participant

    why people always everyday think it is clone.
    j15 has aesa, fbw, lcd all from china, and it will use ws10 engine also from china
    j15 body is base on j11.
    su33 do not have these.
    of cos china look at su33 body from yukraine to study but it is not su33.
    russia cannot make j15 really.

    Russia has the intellectual property on the airframe that China was licensed to built to a certain number. The scope and nature of modifications that can be done to the original design were subject to terms and conditions outlined in the license contract. Regardless of what your definition of a clone is, the J-15 design is a breach of that IP and hence the contract.

    in reply to: Does the UK need strategic bombers? #2239060
    benhongh
    Participant

    gone are the days of the Vulcan, and the UK’s ability to produce its own strategic bombers, tankers, airliners, and transport aircraft

    they’ve filled the void by buying French and American except in the strategic bomber arena..
    does the UK need to bring this capability back?

    Retiring the Vulcan was a mistake. An evolved design based on the Vulcan with new flight control, engine, avionics and integration with modern weapons arsenal would be an awesome platform (even mroe effective than the TSR2, I’d say)

    in reply to: Chinese Air Power Thread 17 #2251879
    benhongh
    Participant

    [QUOTE=MSphere;2060916]You are very wrong. The differences between Su-27 and Su-35S are very extensive. I suggest you look it up by yourself. Anyway, I give you a small hint:

    – new KSU-35 flight control system, shifting the center of gravity to the rear making the Flanker unstable in all axes, quadruplex FBW, elimination of canards (Su-27M)
    – 140+kN class Izd.117S engines with TVC, service life 4,000 hours
    – beefed up airframe with same empty weight but increased maximum TOW, 6,000h life expectancy, larger nose to accomodate 900mm radar antenna
    – new materials – high-strength composites, carbon fibre, aluminium lithium alloy, titanium.
    – 20% more internal fuel, wet pylons, inflight refueling probe
    – supercruise at M1.2, RAM on intakes, treated canopy, RCS reduced roughly by half

    The shaping on the Su-35 was also massively optimised to dramatically lower transonic drag. All in all, Su-35S is a complete new airframe from Su-27M.

    in reply to: How to Publish an Ideal Aviation Book on a Fighter #2261110
    benhongh
    Participant

    I don’t want to dampen your enthusiasm, but you have picked a very hard aircraft to write about for your first attempt. Anyone who pays for a book on a specific aircraft would expect exclusive info and gorgeous, first-hand photography. So until you have those for JF-17, you are not likely to impress.

    But why not start with an easier aircraft, say, MiG-21 or BAE Systems Hawk? Reasons being:

    – They are legendary in design, performance, and history
    – They have been in service with a large number of operators for decades
    – Authentic data regarding these aircrafts are generally easy to find and verify.
    – Access to examples of these aircrafts are easy to get, from museums to operating units alike
    – You may have a chance to actually fly in one of them
    – A lot of pilots previously operating these types in combats have retired, they are more than willing to share their stories if you ask them nicely
    – You will be targeting a much wider audience

    By starting with an easier aircraft, you buy your way into professional publishing (hopefully) by gaining experience, making connections, understanding your readers from their feedbacks, and possibly getting a sponsor for your next job. A lot of effort? Certainly! But if you are passionate enough, you will reach your goal in due time–just be patient and don’t try to swallow what you can’t bite.

    in reply to: Sexy Airlifters! #2276608
    benhongh
    Participant

    The one and only C-47A
    [ATTACH=CONFIG]218108[/ATTACH]

    I maintain that the C-47 is always the sexiest airlifter, ever!

Viewing 15 posts - 16 through 30 (of 146 total)