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Something to do while bored at work

Scheduled Pinned Locked Moved The Lounge
databaseadobe
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  • C CodeWraith

    Correct, most of it does anyway. That's what all the collective and cyclic pitch stuff is all about: The angle of attack.

    I have lived with several Zen masters - all of them were cats. His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.

    M Offline
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    Munchies_Matt
    wrote on last edited by
    #21

    Well, most of an the angle of attack on a symetric foil is just to present the foil as an asymmetric one to the airflow and hence get a pressure drop in line with Bernoulis theorem. Of course you do get additional lift from increasing the angle of attack beyond that because of the downward movement of air due to that angle, and it is considerable, when used, but also expensive in terms of drag, and is of course limited by stalling when the boundary layer breaks away. At that stage the drag is huge, and the lift from Bernoulis theorem gone. This is the state your friend had his rotor in by running the aerofoil backwards. He was using it like a paddle!

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    • T The pompey

      Circle your right foot in a clockwise direction. Now with your right index finger draw a 6 in the air Your foot has changed direction and there aint a damn thing you can do about it.

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      W Balboos GHB
      wrote on last edited by
      #22

      I can do things like twiddle thumbs, one in each direction as well as a number of Stan Laurel's famous motion notions[^].* So - I thought I'd break this one.   Then I realized what sort of quest upon which I was about to embark. * I can do the enhanced version wherein one claps between knees terminal points. First once, then twice, etc. I am indeed multi-talented.

      Ravings en masse^

      "The difference between genius and stupidity is that genius has its limits." - Albert Einstein

      "If you are searching for perfection in others, then you seek disappointment. If you are seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

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      • T The pompey

        Circle your right foot in a clockwise direction. Now with your right index finger draw a 6 in the air Your foot has changed direction and there aint a damn thing you can do about it.

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        charlieg
        wrote on last edited by
        #23

        dude - evil

        Charlie Gilley <italic>Stuck in a dysfunctional matrix from which I must escape... "Where liberty dwells, there is my country." B. Franklin, 1783 “They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759

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        • T The pompey

          Circle your right foot in a clockwise direction. Now with your right index finger draw a 6 in the air Your foot has changed direction and there aint a damn thing you can do about it.

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          Nish Nishant
          wrote on last edited by
          #24

          Did not work for me as I kept drawing 9s in the air. :rolleyes:

          Nish Nishant Consultant Software Architect Ganymede Software Solutions LLC www.ganymedesoftwaresolutions.com

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          • C CodeWraith

            The tail rotor also has a collective pitch control, so it's both. It's always installed on the opposite side to where the main rotor's torque would turn the tail, so that it pushes against it. tail rotor on the starboard side -> main rotor turns clockwise Tail rotor on the port side -> main rotor turns counterclockwise

            I have lived with several Zen masters - all of them were cats. His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.

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            L Offline
            Leo56
            wrote on last edited by
            #25

            Unless it's a Eurocopter and uses a Fenestron tail rotor.... :)

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            • L Leo56

              Unless it's a Eurocopter and uses a Fenestron tail rotor.... :)

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              C Offline
              CodeWraith
              wrote on last edited by
              #26

              Leo56 wrote:

              Eurocopter

              Airbus. They now call themselves Airbus. Just outside the town is this place[^], which also now belongs to Airbus. Fenestrons for models of Airbus Helis are hard to find and usually hard to get. That's why I stick to conventional tail rotors, like the one for the Huey I have been working on for quite a while.

              I have lived with several Zen masters - all of them were cats. His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.

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              • T The pompey

                Circle your right foot in a clockwise direction. Now with your right index finger draw a 6 in the air Your foot has changed direction and there aint a damn thing you can do about it.

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                V Offline
                Vaso Elias
                wrote on last edited by
                #27

                My friend complains that he cannot do it while he is driving!! :doh:

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                • T The pompey

                  Circle your right foot in a clockwise direction. Now with your right index finger draw a 6 in the air Your foot has changed direction and there aint a damn thing you can do about it.

                  K Offline
                  K Offline
                  Kirk 10389821
                  wrote on last edited by
                  #28

                  Actually, if you focus on the foot, and speed up the speed at which you make the 6, such that you are in the middle of the transition at the bottom of the rotation, I believe you can inhibit this response effectively. You have to alter your psychological run burst to be really small, just enough to kick off the 6 with the finger and maintain focus on your foot. But it took about 3 tries, and now I can do it easily enough... Curious if others found that...

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                  • C CodeWraith

                    No, but if my main rotor turns clockwise, on which side should I look for the tail rotor. Port or starboard?

                    I have lived with several Zen masters - all of them were cats. His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.

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                    David Days
                    wrote on last edited by
                    #29

                    Just noticed your sig, CodeWraith ("evil lasagna")--I love that movie!

                    vuolsi così colà dove si puote ciò che si vuole, e più non dimandare --The answer to Minos and any question of "Why are we doing it this way?"

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                    • D David Days

                      Just noticed your sig, CodeWraith ("evil lasagna")--I love that movie!

                      vuolsi così colà dove si puote ciò che si vuole, e più non dimandare --The answer to Minos and any question of "Why are we doing it this way?"

                      C Offline
                      C Offline
                      CodeWraith
                      wrote on last edited by
                      #30

                      I just searched, but only found easy lasagna recipes. :-)

                      I have lived with several Zen masters - all of them were cats. His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.

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