A random collection of parts flying in a loose formation. . .

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  • Paul Pless
    pinko commie tree hugger
    • Oct 2003
    • 124838

    A random collection of parts flying in a loose formation. . .

    BDub gave me a hangar tour today of two of the helicopters that he works on and flies aboard. This thing bellow stands as tall as me and is the transmission and main rotor smash plate from one of those helicopters. Fascinating! Thank you Brian.

    Simpler is better, except when complicated looks really cool.
  • Gerarddm
    #RESIST
    • Feb 2010
    • 32468

    #2
    Re: A random collection of parts flying in a loose formation. . .

    Remarkably steam punk appearance to these civilian eyes...
    Gerard>
    Albuquerque, NM

    Next election, vote against EVERY Republican, for EVERY office, at EVERY level. Be patriotic, save the country.

    Comment

    • Paul Pless
      pinko commie tree hugger
      • Oct 2003
      • 124838

      #3
      Re: A random collection of parts flying in a loose formation. . .

      Originally posted by Gerarddm
      Remarkably steam punk appearance to these civilian eyes...
      its entirely hydraulic/mechanical. Starting with disc brake in the middle down low you will see where the drive shafts from the twin GE Turbine engines enter the transmission. Just above that is a large planetary gear which turns the power ninety degrees up to the swash plate. You will see at about even with the large horizontal gear approximately 1/3 of the way up there are two stubby and thick hydraulic cylinders (there are actually three the other is hidden on the back side). The control the tilt of the entire swash plate. Above this is another series of hydraulic cylinders, one for each rotor blade. the pitch of each blade changes as it rotates, advancing and retreating. The aluminum oval shaped protuberances up top hold ballast for balancing the entire rotor assembly. Its a wicked cool part of the entire helicopter. On the opposite side are hydraulic pumps and ptos for generators and the gear drive for the tail rotor.. Brian also showed me the avionics and how the controls interact with this part. Its a hellified robust.

      When complicated looks very effing cool!!!
      Last edited by Paul Pless; 09-16-2017, 06:32 PM.
      Simpler is better, except when complicated looks really cool.

      Comment

      • LeeG
        Senior Member
        • May 2002
        • 72803

        #4
        Re: A random collection of parts flying in a loose formation. . .

        Way cool

        Comment

        • sharpiefan
          Pro-metric Space Cadet
          • Aug 2013
          • 5267

          #5
          Re: A random collection of parts flying in a loose formation. . .

          I thought you were describing the International Space Station.


          Hope the voyage is a long one.
          May there be many a summer morning when,
          with what pleasure, what joy,
          you come into harbors seen for the first time...

          Ithaka, by Cavafy
          (Keeley - Sherrard translation)

          Comment

          • Breakaway
            Senior Member
            • Mar 2007
            • 28419

            #6
            Re: A random collection of parts flying in a loose formation. . .

            That's cool!

            Kevin
            There are two kinds of boaters: those who have run aground, and those who lie about it.

            Comment

            • Rob Hazard
              Senior Member
              • Sep 2003
              • 2149

              #7
              Re: A random collection of parts flying in a loose formation. . .

              Golly!
              A couple questions for the benefit of us simpletons who think boatbuilding is complicated:

              Near the top is a piece with a red center and 10 holes. Is that the mounting plate for a rotor blade?

              The 3 stubby hydraulic cylinders that control the "tilt of the entire swash plate"; do they rotate with the blades, or are they part of what's fixed to the airframe?

              Comment

              • Paul Pless
                pinko commie tree hugger
                • Oct 2003
                • 124838

                #8
                Re: A random collection of parts flying in a loose formation. . .

                Yes that's where the rotors bolt to

                and no, the three stubby cylinders that control the swash plate, they do not rotate

                Originally posted by Rob Hazard
                Golly!
                A couple questions for the benefit of us simpletons who think boatbuilding is complicated:

                Near the top is a piece with a red center and 10 holes. Is that the mounting plate for a rotor blade?

                The 3 stubby hydraulic cylinders that control the "tilt of the entire swash plate"; do they rotate with the blades, or are they part of what's fixed to the airframe?
                Simpler is better, except when complicated looks really cool.

                Comment

                • P.I. Stazzer-Newt
                  obnoxiously persistent.
                  • Jan 2005
                  • 26007

                  #9
                  Re: A random collection of parts flying in a loose formation. . .

                  A loose collection....
                  I'd much rather lay in my bunk all freakin day lookin at Youtube videos .

                  Comment

                  • Rob Hazard
                    Senior Member
                    • Sep 2003
                    • 2149

                    #10
                    Re: A random collection of parts flying in a loose formation. . .

                    How many blades on this thing? Looks like there's room for 5.

                    Comment

                    • Paul Pless
                      pinko commie tree hugger
                      • Oct 2003
                      • 124838

                      #11
                      Re: A random collection of parts flying in a loose formation. . .

                      five rotor blades
                      its a sikorski s 61
                      Simpler is better, except when complicated looks really cool.

                      Comment

                      • amish rob
                        Emperor For Life
                        • Mar 2010
                        • 24274

                        #12
                        Re: A random collection of parts flying in a loose formation. . .

                        My buddy was a helicopter mechanic on the base nearby (he's older now, so he mostly drives a desk) and he's gotten me on to see some cool stuff.
                        The insides of helicopters are just insane. Really, they look like I doodled them.

                        That's a great picture.

                        Peace,
                        Robert

                        Comment

                        • Rob Hazard
                          Senior Member
                          • Sep 2003
                          • 2149

                          #13
                          Re: A random collection of parts flying in a loose formation. . .

                          So the part just above/inside the swash plate, the part with the color-banded turnbuckle thingies; that rotates, right?

                          Comment

                          • Paul Pless
                            pinko commie tree hugger
                            • Oct 2003
                            • 124838

                            #14
                            Re: A random collection of parts flying in a loose formation. . .

                            fast forward to the 5:47 mark

                            Simpler is better, except when complicated looks really cool.

                            Comment

                            • Rob Hazard
                              Senior Member
                              • Sep 2003
                              • 2149

                              #15
                              Re: A random collection of parts flying in a loose formation. . .

                              That was pretty cool, Paul. Thanks!
                              I had to watch it from the beginning to get my head around all the different motions going on at once.

                              Comment

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