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  • #46
    No....it will not autorotate. There is not enough mass in the rotors and to autorotate you need to have rotor pitch control which this does not. It has fixed pitch rotors. This machine should only be flown at low altitudes that autorotation would be impractical anyways. Autorotation can be done with a
    heli with unit ability and proper training and can be safely done.
    Nick
    Miller 252 Mig
    Miller Cricket XL
    Millermatic 150 Mig
    Miller Syncrowave 200 Tig
    2-O/A outfits
    Jet Lathe and Mill
    Jet 7x12 horz/vert band saw
    DeWalt Multi Cutter metal saw
    Century 50 Amp Plasma Cutter
    20 ton electric/hydraulic vertical press
    Propane Forge
    60" X 60" router/plasma table

    www.youtube.com/watch?v=jTu7wicVCmQ
    Vist my site: www.nixstuff.com
    and check out some of my ironwork and other stuff

    Comment


    • #47
      Originally posted by monte55 View Post
      No....it will not autorotate. There is not enough mass in the rotors and to autorotate you need to have rotor pitch control which this does not. It has fixed pitch rotors. This machine should only be flown at low altitudes that autorotation would be impractical anyways. Autorotation can be done with a
      heli with unit ability and proper training and can be safely done
      .
      Agreed, as long as the L.Z. is clear of obstructions. During Auto Rotation cyclical Movements are limited. Which leaves maneuvering to a clear area very limited especially if it is hydraulic systems failure causing the non maintenance of altitude.
      However. We/you are not talking high altitude flying with this machine you intend to build, and Auto rotation does as you suggest require collective and some pretty good altitude to even attempt to achieve, but I do agree that it would be pretty awesome to fly around. Never the less a very interesting concept and project of which I wish you well. I will be very interested in the final phases and if it actually can fly with your mechanical concepts
      Not saying it won`t mind ya, Hopefully it will.
      best of luck

      Comment


      • #48
        NO spline cutting here Sounds like we have about the same equipment, i have a small mill and lathe as well. bigger than your hobby stuff, but it's only got a 14'' swing and headstock to tailstock at best is 21''.

        Although it's a crude setup i have done some very precision work with it... well more than what my actuall engine machinist thought i would be able to.

        I understand wanting to do it all and build everything yourself, I'm the same exact way! My goal however is to build an ultra-lite aircraft, but no heli-style projects.. a glide ratio of less than 1:1 isn't that good of odds IMO, but i can't wait to see yours in action
        Dynasty 200DX
        Hobart Handler 135
        Smith MB55A-510 O/A setup
        Lathe/Mill/Bandsaw
        Hypertherm Powermax 45
        Just about every other hand tool you can imagine

        Comment


        • #49
          Hi, Nick,

          I've watched videos of like helicopters, and am wondering what method is used to change direction of the undercarriage. Is a controlled vane used to deflect downdraft?

          I've launched a hang glider off of a mountaintop a few times... nothing quite matches the exhiliaration of flight. I'm eagerly following your build and looking forward to video of your getting airborne on your self-built flying machine. Best of luck.

          Comment


          • #50
            Originally posted by Fishy Jim View Post
            What size chain is that? Also, did you buy or make the large sprocket for it?
            The chain has 50VM on the links. Turns out is a 530 o-ring gold chain. I found this out when I was paying $13 for a master link. Oh well. At least I got the chain and sprockets off e bay pretty cheap.
            Nick
            Miller 252 Mig
            Miller Cricket XL
            Millermatic 150 Mig
            Miller Syncrowave 200 Tig
            2-O/A outfits
            Jet Lathe and Mill
            Jet 7x12 horz/vert band saw
            DeWalt Multi Cutter metal saw
            Century 50 Amp Plasma Cutter
            20 ton electric/hydraulic vertical press
            Propane Forge
            60" X 60" router/plasma table

            www.youtube.com/watch?v=jTu7wicVCmQ
            Vist my site: www.nixstuff.com
            and check out some of my ironwork and other stuff

            Comment


            • #51
              Being a motorcycle guy, and seeing the small arc that chain is going around, I'd have two chains (stacked) on that machine. If you only have one, and it breaks........well....Times Up!
              RoyB
              Dartmouth, MA

              http://www.rvbprecision.com

              Millermatic 185 MIG
              Miller Diversion 165
              Purox W200 O/A
              Grizzly 9957 Mill
              Grizzly 4030 Metal Band Saw
              Grizzly 1050 Knife Belt Sander
              Jet 1236 Metal Lathe
              TP Blast Cabinet

              Comment


              • #52
                Short video of counter rotating rotor head

                I just put a short video of the rotor head on Youtube. It is 10:16 Central time right now. You may need to give it a few minutes for Youtube to complete the loading process. I think the video will explain better than pictures how it works.

                http://www.youtube.com/watch?v=MHQ4k3dKqtg

                Nick
                Nick
                Miller 252 Mig
                Miller Cricket XL
                Millermatic 150 Mig
                Miller Syncrowave 200 Tig
                2-O/A outfits
                Jet Lathe and Mill
                Jet 7x12 horz/vert band saw
                DeWalt Multi Cutter metal saw
                Century 50 Amp Plasma Cutter
                20 ton electric/hydraulic vertical press
                Propane Forge
                60" X 60" router/plasma table

                www.youtube.com/watch?v=jTu7wicVCmQ
                Vist my site: www.nixstuff.com
                and check out some of my ironwork and other stuff

                Comment


                • #53
                  Sorry about the video. It looked fine before we uploaded it. Will try again later.
                  Nick
                  Miller 252 Mig
                  Miller Cricket XL
                  Millermatic 150 Mig
                  Miller Syncrowave 200 Tig
                  2-O/A outfits
                  Jet Lathe and Mill
                  Jet 7x12 horz/vert band saw
                  DeWalt Multi Cutter metal saw
                  Century 50 Amp Plasma Cutter
                  20 ton electric/hydraulic vertical press
                  Propane Forge
                  60" X 60" router/plasma table

                  www.youtube.com/watch?v=jTu7wicVCmQ
                  Vist my site: www.nixstuff.com
                  and check out some of my ironwork and other stuff

                  Comment


                  • #54
                    Hiller 'copters without tailfans

                    Nick,
                    In the late '50's or early 60's Hiller produced a two place machine the Hiller Hornet. It had ramjet engines on the rotor tips. Because there is no torque being applied to the main post, there is no appreciable counter force. A slight tendency to spin opposite the rotors is caused by friction. Hiller handled that with an angled tailfin. I believe that it was adjustable via footpedals for yaw control. Even better the ramjets were much lighter than any engine you could afford as a hobbyist. That means more payload! I was impressed when I saw it because it is so simple and there is little to go wrong. Just the thing for an experimental pilot! The most basic model didn't even have an electric starter - you just cranked the rotor by hand until the ramjets fired! Anyway the data is probably around somewhere. If you're interested look it up. DrBob
                    Last edited by DrBob; 12-27-2008, 10:30 PM. Reason: forgot something!

                    Comment


                    • #55
                      Recent Heli Progress...

                      I have been chugging along, bit by bit on my heli project. I am getting closer to the testing stage. I need to make my rotor blades. I have just recently upgraded my 2D CNC software for my router table to 3D for the tidy introductory sum of $900 (and that's only because I already had the original $600 program) otherwise it would have cost me $2000. Here is some more pics to show my progress.
                      Nick
                      Attached Files
                      Nick
                      Miller 252 Mig
                      Miller Cricket XL
                      Millermatic 150 Mig
                      Miller Syncrowave 200 Tig
                      2-O/A outfits
                      Jet Lathe and Mill
                      Jet 7x12 horz/vert band saw
                      DeWalt Multi Cutter metal saw
                      Century 50 Amp Plasma Cutter
                      20 ton electric/hydraulic vertical press
                      Propane Forge
                      60" X 60" router/plasma table

                      www.youtube.com/watch?v=jTu7wicVCmQ
                      Vist my site: www.nixstuff.com
                      and check out some of my ironwork and other stuff

                      Comment


                      • #56
                        RE: More Recent Heli Progress...

                        Using the 3D program, here are some computer generated rotor blades I have been playing with. If this works, and I can actually make my own blades, it will have paid for the program.
                        Attached Files
                        Nick
                        Miller 252 Mig
                        Miller Cricket XL
                        Millermatic 150 Mig
                        Miller Syncrowave 200 Tig
                        2-O/A outfits
                        Jet Lathe and Mill
                        Jet 7x12 horz/vert band saw
                        DeWalt Multi Cutter metal saw
                        Century 50 Amp Plasma Cutter
                        20 ton electric/hydraulic vertical press
                        Propane Forge
                        60" X 60" router/plasma table

                        www.youtube.com/watch?v=jTu7wicVCmQ
                        Vist my site: www.nixstuff.com
                        and check out some of my ironwork and other stuff

                        Comment


                        • #57
                          Monte.. I say this in with nothing but the best reguards and respect.. You're one crazy S.O.B. but then again , i'd be crazy enough to be your backup pilot. Maybe you cn fly into omaha on that thing and i'll buy beer, give ya aplace to crash before flying back the next day.

                          YOu sir are a trooper, most would have given up by now but you persevere and the progress is showing..

                          I was intrigued by the ramjet but... google said it's nothing more than a pulse jet engine.. never had god luck with those for thrust (anyone got any secrets/tips.. i've laways wanted a pulsejet that would power a go kart or small glider style craft I mean i want 200+ lbs of thrust, or at least 100 HP that i can some how convert and harness the power to drive a shaft


                          GO MONTE!!!!!!!!!!!!!!!!!!! I can't wait to see this thing in action, i got faith in ya bud!
                          Last edited by turboglenn; 01-20-2009, 10:45 AM.
                          Dynasty 200DX
                          Hobart Handler 135
                          Smith MB55A-510 O/A setup
                          Lathe/Mill/Bandsaw
                          Hypertherm Powermax 45
                          Just about every other hand tool you can imagine

                          Comment


                          • #58
                            Can we not use the word "Crash"
                            Nick
                            Miller 252 Mig
                            Miller Cricket XL
                            Millermatic 150 Mig
                            Miller Syncrowave 200 Tig
                            2-O/A outfits
                            Jet Lathe and Mill
                            Jet 7x12 horz/vert band saw
                            DeWalt Multi Cutter metal saw
                            Century 50 Amp Plasma Cutter
                            20 ton electric/hydraulic vertical press
                            Propane Forge
                            60" X 60" router/plasma table

                            www.youtube.com/watch?v=jTu7wicVCmQ
                            Vist my site: www.nixstuff.com
                            and check out some of my ironwork and other stuff

                            Comment


                            • #59
                              Originally posted by monte55 View Post
                              Can we not use the word "Crash"


                              Glenn, try to locate an APU from a Chinook. They're about 60# and produce 120hp of shaft rotation (to drive a hydraulic pump, so not much torque but a lot of rpm's). I think Leno had some guy on who made one into a scooter. LOUD is an understatement, but they make one heck of a power to weight ratio. They're designed to run on JP4, but you might get by with kerosene or #2.
                              Syncrowave 250DX
                              Invison 354MP
                              XR Control and 30A

                              Airco MED20 feeder
                              Thermal Dynamics Cutmaster 81
                              Smith O/A rig
                              And more machinery than you can shake a 7018 rod at

                              Comment


                              • #60
                                way cool.
                                and just think of all the cool stuff you can make with the new 3D program. what great fun.
                                you can start making wind mill generators now that you can make the blades the rest should be easy with a lil research. they are big $$ too. i looked into getting one for the house and saw the sticker $$ gotta be a cheaper way. all kinds of sites on the net that claim to hook ya up with plans that will have you " off the grid in no time" yea right. if only.

                                well best of luck with the flying machine.
                                thanks for the help
                                ......or..........
                                hope i helped
                                sigpic
                                feel free to shoot me an e-mail direct i have time to chat. james@newyorkmetalart.com
                                summer is here, plant a tree. if you don't have space or time to plant one sponsor some one else to plant one for you. a tree is an investment in our planet, help it out.
                                JAMES

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