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    FTL vs Hyperdrive

    First, apologies if there is already a thread similar to this one, but I was not able to find it.

    Does anyone know what the difference is between faster-than-light travel and travel through hyperspace? Is it that when one is in FTL that one is in 'normal' space?

    Also, are we to assume that FTL is faster than hyperspace travel?

    Thanks in advanced for your ideas/thoughts!

    #2
    FTL travels through regualr space, hyperdrive through subspace.

    and we dont know which is faster, regardless of useless caluclations based on very little

    Comment


      #3
      Originally posted by escyos View Post
      FTL travels through regualr space, hyperdrive through subspace.

      and we dont know which is faster, regardless of useless caluclations based on very little
      Thanks for the reply!

      Do we know yet how far they're travelling between jumps? Hang on... I see there's another thread on that, so I'll check that one out!

      Thanks again!

      Comment


        #4
        Originally posted by escyos View Post
        and we dont know which is faster, regardless of useless caluclations based on very little
        That's not entirely true: we do know that when the Destiny uses FTL to travel within a galaxy, it must travel several days to get form one group of Stargates to another. Using its intergalactic hyperdrive, Atlantis could get from Pegasus to Earth in that time.

        As for a comparison between Destiny's FTL and regular hyperdrives, all that we can say is that their speeds are of roughly the same order of magnitude.
        "From East Middle School. Suzumiya Haruhi. I have no interest in ordinary humans. If there are any aliens, time travelers, sliders, or espers here, come join me."
        - The Melancholy of Haruhi Suzumiya; Best Character Introduction Ever.

        "And can we lose the ten thousand year old dead plants?!"
        - Stargate: Atlantis (1x03) "Hide and Seek"

        "Hammerheads do not load/unload units immediately – they must descend to ground level first. Initial experiments involving jump-jetting infantry into the Hammerhead’s cargo compartment met with unfortunate results."
        - Command&Conquer 3: Kane's Wrath Hammerhead Unit Spotlight

        Comment


          #5
          FTL travel is made in "layer" of reality closer to normal space. As a consequence we can still see the stars and the ship is affected by objects in its path - and has to fly around planets, suns, and has to get particularly out of range of a strong gravitational field or else the ship is pulled of course and finally FTL mode is disrupted.

          With hyperspace you can go through pretty much anything, planets, stars, etc; that layer of subspace does not interact with normal space. Probably the only thing to be on the look out are black holes. This way you don't have to plot complicated courses and keep a huge database of what's ahead. The fact that it's more resistant to outside influence also means that you can get yourself out of trouble real fast and usually in any circumstance.

          We can clearly see the huge advantage hyperspace has.

          Speed: we don't know anything about this aspect yet. Hopefully it will be revealed in future episodes.

          Power requirements: we don't know much about this either.
          Carter: "The singularity is about to explode!"

          Comment


            #6
            Hyperspace-drives is usually used instead of ehm, regular "FTL drives" because in the real world faster than light travel has some problematic consequences.

            First of all time-dilation. This is a real effect, and can be observed if you have two watches that are precise enough: Place one in a 747 flying around the globe, and keep the other in your office. When the 747s lands after flying around the globe with 600mph, the time on that clock will be a teeeny tiny bit behind the watch that was stationary. That is because time moves slower, the faster you get to the speed of light.

            If you therefore put people aboard a ship that travels at the speed of light, a couple of months might have passed for them, while many years have passed for those who stayed on earth.

            With a FTL drive, there are other consequences. Let's say that you set the course for a place three lightyears away to intercept an alien fleet. The battle is going to be observed with a big telescope. Since you travel faster than light, you can expect your future self to come back home from that mission, before you leave for it yourself. Moreover, your future self will be able to see himself in the big telescope, since he has traveled faster than the light that the telescopes observe.

            If you use a "hyperspace drive", you avoid those problematic real world consequences of faster than light travel, and it tends to be more popular in Sci FI shows for that reason.

            And as for
            Also, are we to assume that FTL is faster than hyperspace travel?
            Depends on what show or movie it is, and what the writeriswant to use it for

            Comment


              #7
              actually we have no idea what TYPE of FTL destiny's FTL is. and Hyperdrive is FTL

              Comment


                #8
                Hang on, are we all saying then that the pegasus intergalactic hyperdrive is better than the FTL on Destiny?

                From day one I assmed FTL was way more advanced and faster, especially given that it was developed by the all knowing alterans!

                Comment


                  #9
                  Hyperspace is better in the sense that it's more resilient and generally more convenient.
                  We don't know anything about speed so far.
                  Carter: "The singularity is about to explode!"

                  Comment


                    #10
                    Originally posted by Rush View Post
                    From day one I assmed FTL was way more advanced and faster, especially given that it was developed by the all knowing alterans!
                    You assumed very, very wrong: we know that Destiny is traveling within a single galaxy, and that each jump takes a few days or more. Atlantis's intergalactic hyperdrive could cross a fairly large galaxy in under a day. Therefore, it is clear that the Destiny is far slower than Atlantis.

                    Another important factor to remember is that, while Destiny was built by the "Alterans," so was Atlantis. Moreover, in the time between Destiny's construction and Atlantis's, they invented the ATA system, refined their neural interface technology past the "prototype" phase, and improved Stargate technology so that they could outside the nearest star clusters.



                    Originally posted by Mike. View Post
                    We don't know anything about speed so far.
                    Well, we sort of do: we know that the FTL drive is very slow, at least when traveling within a single galaxy: it takes the Destiny anywhere from a few days to about a week to get from one group of Stargates to another. In that time, Atlantis could make one or more round trips between Pegasus and the Milky Way.

                    As for the Destiny's speed when traveling between galaxies, we will have to wait until later episodes to find out.
                    "From East Middle School. Suzumiya Haruhi. I have no interest in ordinary humans. If there are any aliens, time travelers, sliders, or espers here, come join me."
                    - The Melancholy of Haruhi Suzumiya; Best Character Introduction Ever.

                    "And can we lose the ten thousand year old dead plants?!"
                    - Stargate: Atlantis (1x03) "Hide and Seek"

                    "Hammerheads do not load/unload units immediately – they must descend to ground level first. Initial experiments involving jump-jetting infantry into the Hammerhead’s cargo compartment met with unfortunate results."
                    - Command&Conquer 3: Kane's Wrath Hammerhead Unit Spotlight

                    Comment


                      #11
                      it's possible destiny FTL requires accelleration, making it faster on greater distances, but slower on short distances

                      Comment


                        #12
                        I have a question? Is it ever mentioned that the destiny's ftl is not utilizing hyperspace?

                        Comment


                          #13
                          We have no idea how fast its engines are

                          we know that it takes days to get somewhere, either to reserve energy as its not using a zpm type of system, or because it has to plot a more complicated path...

                          we also dont know if its in slow or high gear

                          the possibilities are endless. We can also assume that if destiny is 'smart' it could actually be calculating a flight path that is away from alien forms that it has encountered and been damaged by. If that is even remotely true then any computation done by anyone is even that more screwed

                          Comment


                            #14
                            There is no difference. In traditional sci-fi nomenclature FTL is any mode of propulsion that can move the ship a light year in less than a year, in any manner. "Hyperdrive" and "hyperspace" is just a recently popular type of FTL propulsion. Hence, the question of comparison between hyperdrive and FTL is moot.

                            Whatever kind of FTL the Destiny has, it may be either a hyperdrive or something else, and there is no telling what its top speed may be. In fact, there have been many speeds at which ships moved through hyperspace, depending on what kind of ships they were, during the course of SG.

                            Comment


                              #15
                              escyos: ... FTL travels through regular space ...
                              How does the Destiny move through regular space? We know for a fact that is impossible, from Einstein. Even those who think FTL travel is possible acknowledge that it cannot be in the "regular" fashion, that is, moving through normal space at more than c.

                              Comment

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