dark light

over G

Forum Replies Created

Viewing 15 posts - 196 through 210 (of 1,640 total)
  • Author
    Posts
  • in reply to: 5th generation tactics/thinking #2359707
    over G
    Participant

    I’d love to see a source for this claim.

    The kid want some sources…guess the 22 radar waves are so undetectable than even the own 22’s 90’s tech vintage radar receivers can’t detect them…

    in reply to: Future air superiority UCAV #2359729
    over G
    Participant

    The “lag” experienced by Predator and Reaper (with the UAVs in Afghanistan and control station at Creech AFB Nevada, USA) is 500 milliseconds. Lag is not a big deal.

    Data and information can be manipulated easily, one can say ‘hey, is the predator used over Kabul, from US bases , only has .5 sec of delay..” yes at 5km from the base….

    Predators are not used on the field, or against mobile targets, they are used on special operations with SF , operations are done with UAVs not because they are some sort of magical robots, but because the US don’t want their soldiers and SFs involved on ambushes.

    This is why , for a field combat the USAF went for light planes instead the holy UAVs

    to continue the discussion:

    in this case we are assuming satellite connections will be used. for example having an F-35, an AWACS, a ground station or a ship within short range will both solve the problem of bandwith (we know the F-35 for one is designed to offer high, unjammable bandwith) and lag

    but I stick to my point that even today’s computers are capable of outmanouvering manned aircraft, if only because they can turn much sharper and have better stealth, a 360 degree unwavering vision (like the F-35) and constant awareness of their own and enemy location, something no human pilot can hope to compete with

    combined with instant human guidance, this will combine human intellect with robotic manouverability, speed and stealth, at a low cost

    The problem is complicated, and depends on the number of relays that are involved, not the bandwidth, more relays more delays ๐Ÿ™‚

    The problem for a big net is that you will need an immense quantity of relays, so there is a limit with nowadays technology.

    The most practical solution would be (IMVHO) a central (probably an AWACS) controlling 5-6 UAVs, with direct control and communication, so avoiding the traffic of a very centralized net, but then again there is not real advantage on weight for a high performance UAV, computers are not smarter than humans, turning much sharper is not everything, you must know when starting the turn and when to finish it.

    Computers help, help a lot, are more persistent, can do more perfect turns, etc..but still are far away from doing the real time and strategic decisions this is why i do like the PAKFA idea.

    in reply to: F-22 Missing #2359802
    over G
    Participant

    Sorry, I should have said “UCAVs are decades away from replacing ALL manned missions”

    There are four things keeping UCAVs from doing this.

    1. A well developed AI

    2. Bandwidth

    3. Bandwidth

    4. Bandwidth

    In case you missed it, bandwidth is also important.
    .

    No is not.

    Bandwidth will help yu to manage more UAVs at once, but all your UAVs will suffer from info delaying , no matter how much bandwidth you stuff in your satellites…

    in reply to: Russian Aviation News – Часть 3! #2360568
    over G
    Participant

    Well spotted. But I never really ounderstood what the gold coating is good for? Some sort of radiation protection?

    Helps the pilot’s visibility and is useful warming the cockpit

    in reply to: Russian Aviation News – Часть 3! #2360681
    over G
    Participant

    I did not know 31s got gold tinted canopies, guess is warmer inside now ๐Ÿ™‚

    in reply to: F-35 News Thread III #2360750
    over G
    Participant

    Come on guys, cut the crap. Any structural problem like this is a major issue at this stage. Software errors might be marginal, but the thing with the bulkhead definitely is not.

    Exactly, this is why on many programs the ‘electronic’ factor is delayed, is not because is the most complicated, but because there are other priorities

    No matter how fancy the computer or HMS are, all these gizmos will be useless if the airframe fails

    in reply to: The PAK-FA Saga Episode XV #2366081
    over G
    Participant

    J-14A = MiG-I44 :confused::confused:

    If that happen , i would call the J-14 the first true 5th gen fighter

    in reply to: The PAK-FA Saga Episode XV #2366083
    over G
    Participant

    stealthier nozzles

    Are not ‘stealthier nozzles’, they are a modification of the reverse thrust for the old ATF requirements, that later were changed

    Exacly the same reason why this ‘stealth nozzle’ is studied for the PAKFA

    What a surprise….

    in reply to: Russian Aviation News – Часть 3! #2382810
    over G
    Participant

    Thank you TR1, yes now i can see the triple array arrange, is clear with the radome colors

    in reply to: Engineering – Academic or Vocational route #526391
    over G
    Participant

    Now with virtual classrooms, multimedia, AV, special group forums, confidential chat rooms, video conferencing, web cam links, etc the classroom is in many cases virtual (especially useful for persons based in remote locations).

    I seriously think most good engineers consider these things useless for their learning (at least is what i have heard from some of them)

    I can’t answer completelly your questing ‘JT442’, i think depends on what you are profiling to, designer? maintenance?

    Probably the ‘academic route’ would work better for designers, and probably production

    While the vocational one would work better for maintenance

    I have been on both, maintenance and production (heavy industry, energetic sector and now metal-mechanic), i always have feel more confortable in maintenance though.

    in reply to: Russian Aviation News – Часть 3! #2382823
    over G
    Participant

    The Russian plane is inferior only in the jet engines. The Indian version uses turbofans while the Russian one uses turbojet. The Russian radome is fixed non-rotating which means it uses a phase array antenna mounted in a triangular configuration(looks like the Indian one use the same type of radome). It’s nearly identical to China’s KJ-2000 AWAC. These type of radome are more modern than the rotating type. Beam-steering is done electronically.
    The most interesting detail is some of the observation windows(Russian AWAC) are orange-tinted. Usually orange tint means it’s coated with indium tin oxide to absorb and disperse incoming radar waves. It may be possible the Russian AWAC is totally coated in RAM to reduce RCS.

    I always thought the chinese AWACS is per definition superior than any western/russian one, by the arrangement of the antenna and the quick updating due this.

    But your comment that the A-50 has a fixed antenna is a bit surprising for me, any reliable picture or source for this?, anyways, I never was that interested on these systems, but I’m curious on this.

    in reply to: Russian submarine Losharik #2024063
    over G
    Participant

    Tanks the correction over the picture, it gave me a lots of doubts and confusion ๐Ÿ™‚

    in reply to: Russian submarine Losharik #2024331
    over G
    Participant

    Very interesting informations about the armament. I have a few more questions:

    * The operationel depth of up to 6.000 meters (claimed) – will that bring an advantage for the Losharik regarding sosus-measurements? Is the sub more difficult to detect when submerged to the maximum?

    * Does the pretty unique interior – the separate compartments – mean, that the crew must work differently compared to normal subs? Has each chamber its own function – besides the reactor and the machine room?

    (I’m not at all pretending to have any deep knowledge in this area, I just have some movies with subs and find this specific construction to be rather interesting ๐Ÿ™‚

    – I found the following information about Losharik on a spanish site and used Google Translate to translate it to english:

    “It is without doubt one of the most mysterious of the Russian Navy. The information is scarce, although several things are certain: It is a nuclear powered submarine, its main feature is its huge capacity of immersion, which is constructed mostly of titanium (linking different areas of this material to form the inner hull and outer hull covering it with a “soft.” Thus, with a length of 50 meters, a width of 3.8 meters and a depth of 4.2 meters to its surface just 550 and 730 tons submerged, would be powered for a 15 MW reactor that it would reach up to 20 knots surfaced and 45 in immersion (figure hard to believe otherwise).
    Regarding the key issue, its ability to dive, there is talk of up to 1000 or 1200 meters to 6000 would increase the use of ROVs. He is equipped with a crew-
    tion of 14 to 16 people and a autonomรญaa up to 50 days of food.
    Nothing is known about its weapons, but logic dictates that will carry a battery of missile submarine torpedoes and even especially, a good supply of mines.
    Only known that there is a unity in service with the Northern Fleet, and there are no photographs or even know anything about building more units.”

    Regardless if this thing is meant to have a warfare application or not, if that data is real (a small nuclear submarine with 1000+/- displacement and special inner pressure hull), this is quite of achievement, a real achievement that has obvious military technological and industrial implications, especially the industrial ones are the important here.

    This thing is way more important than any UAV or any stealth program.

    Is probably a testbed, for a next generation of submarines, with better hulls, the double hull concept has achieved a completely new perspective, for practical applications.

    I honestly doubt this thing could dive deeper than 3000m, but then who knows, anyway the ‘Mir’ which should be more solid, has a operational diving depth of 4000-5000m, as i recall it well…

    I have been wondering why materials like concrete were never used for high pressure hulls, wonder if somebody has tested such idea (what I’m thinking is a concrete hull with a steel skin).

    For it weapons, I would say that is clear the installation of at least 4 conventional tubes (the ones of 500+ mm, i think, I’m not an expert), looking at the picture again, seems to have 6 tubes, is a weapon, or at least is meant to fight.

    IMO is a testbed for future programs, like the Mike class was

    Thank you for the information, hope to find more, where did you get the pictures ‘POTV’?

    ***********

    Edit: for it dimensions , I think, IMO, this submarine is a bit larger, with 6-7m of width can you tell me from were comes the dimensions that you are quoting in your post?

    in reply to: Russian submarine Losharik #2024544
    over G
    Participant

    Any military usefulness?

    Funny that i was about to tell you that not everything in the military has an immediate military application…but then i took a look over the bow of the submarine, and saw torpedo tube doors….

    I really thought this thing was only meant for deep sea and miner exploration…but seems it does have its evil applications, these russians are crazy.

    For it military usefulness , i would say that carrying a decent sonar down there turns you the best submarine detector ever, and the most silent one

    in reply to: Russian submarine Losharik #2024550
    over G
    Participant

    6.000 meters

    Was about to ask why the spherical modules, i think i can understand it better now.

    Very interesting submarine, what is it displacement?, seems to be too large for a submersible, more information please, this thing is very interesting

    If is nuclear powered thins thing is quite of achievement, although i doubt it…

Viewing 15 posts - 196 through 210 (of 1,640 total)