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chaser wing fit - any ideas????

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  • chaser wing fit - any ideas????

    OK I give in - try as I (and my friends) might fitting the wing to my chaser is proving a very difficult task?!
    So is there an easy way - I am seriously considering building some sort of 'wing hoist'?


  • #2
    chaser wing fit - any ideas????

    Rigging Trya

    You'd need to make these rubber shoes.

    []

    Attached files

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    • #3
      chaser wing fit - any ideas????

      Kestutis,

      Not a bad idea (and one I had not thought of!), however, the thing that causes me most trouble is the 'tubular' hang point on the Chaser. Any support being applied via the uprights invariably pushes the uprights 'off centre' (and with them the hang tube).

      I will nevertheless look closely at the rubber shoe solution.

      Many thanks

      Paul

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      • #4
        chaser wing fit - any ideas????

        You might already be doing this bug - A straight approach and trying to keep hang tube central doesn't work. So thing to do is to work the angles so you can attach with it cocked over - to do that normal procedure is to put the trike 45 degrees to the wind. Cock the hang tube over to match the monopole angle for your diagonal approach angle, lift, stagger and plop it on. Then once attached rotate wing to be straight with trike and fit the front strut.

        Paul

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        • #5
          chaser wing fit - any ideas????

          Thanks Paul a very succinct description of the task (I particularly like the 'stagger' element!). I have tried to mount the wing in such fashion but have had to conclude that my days of lifting (even a Chaser wing) are pretty much behind me.
          If all else fails, I have some lifting mechanism designs in my head and will construct 'something'!
          Many thanks for your description etc.

          Comment


          • #6
            chaser wing fit - any ideas????

            Thought you may like to see the 'beast' that is giving me all this trouble (only in fitting the wing - it flies like a dream).

            Attached files

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            • #7
              chaser wing fit - any ideas????

              Several trips to the Gym, and make sure you are not vertically challenged (like me!)

              Most rediculous rigging system and hang point attachment known to man (apart from the ones where the nose does not reach the floor....)

              KW.

              Paul Wilkinson wrote: OK I give in - try as I (and my friends) might fitting the wing to my chaser is proving a very difficult task?!
              So is there an easy way - I am seriously considering building some sort of 'wing hoist'?

              Comment


              • #8
                chaser wing fit - any ideas????

                I don't take mine off...
                Dave

                Attached files

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                • #9
                  chaser wing fit - any ideas????

                  Dave,
                  Very interested in how you achieve the wing fold shown in the picture.
                  Do to have any more pictures etc?

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                  • #10
                    chaser wing fit - any ideas????

                    HI Paul,

                    It isn't that simple. Here's a list of what I needed to do:

                    - Remove the pod (this stays off, I'm afraid).
                    - Make a frame that hooks over the control bar and the steering pedals with pivot points that are now vertically below the wing nose-leading edge pivot bolts. This holds the wing in a fixed horizontal position.
                    - Make two removable struts that hook onto the frame pivot points at the bottom and into lugs fitted at the leading edge-crosstube joints. (These struts are cranked to miss the control frame corners and go neatly up through the triangular sail inspection holes.) They need to be accurately sized to take the wing loads as they hinge back and lose support of the landing wires. Frame and struts fabricated from 1" x 1/16" ERW square section steel tube.
                    - Fashion a new kingpost-keel tail cable that can be unhooked at the keel and allow the kingpost, landing wires and lufflines to flop forwards as the wings fold back.
                    - Design a pull-back winch that slots into a re-designed keel tail socket. This is needed to get the huge pull necessary whilst standing at the top of a three-step step-ladder.

                    It works brilliantly and I'm never more than 5 minutes from flight.
                    If I did it again, I'd investigate changing the design of the wing noseplate and replace it with fully articulating hinges. But at the time, I didn't feel confident about changing fundamental Chaser design points.

                    Dave

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                    • #11
                      chaser wing fit - any ideas????

                      Many thanks Dave, I presiume you also remove one/ two etc centre section battons?
                      My particular problem may be resolved by partially utilising your technique! I have a hanger but the low roof requires the wing removed however after seeing your folded machine I real is that I only need ythe king post lowering ( and not by that much).
                      Wing supports ( not as complex as yours) and rear top rigging mod to allow king post to fold forward may be sufficiency.
                      Many thanks for additional information.

                      Comment


                      • #12
                        chaser wing fit - any ideas????

                        Hi Paul,

                        I remove the nose batten (allows the kingpost to drop flat) and one undersurface batten only (No 2 r/h side - the wing then sits more compactly over the left wing when furled). I don't see any nasty distortions when the wing tips are as close as 7' 6" (width of my lorry back door).

                        The luff lines did give me a problem. In the end, I redesigned the top linkage. I replaced the rear landing wire with a length of discarded Cessna 150 control cable. This had screw fitting roll crimped onto one end that could be bent through 90 degrees. The angled end sticks through the thimble at the kingpost top and has a shackle attached to carry the luff lines. I then Nico'd the other end for the usual keel fixing. To derig, I disconnect the bottom end and use the nose batten to 'flip' the 90 degree bent through the thimble, releasing both the kingpost to pivot forwards and the luff line shackle to drop down, releasing them. Picture should augment my crappy description... The slack horizontal 'wire' is a length of 4mm Bungee to retain the cable when it's dropped.

                        I replaced the luff lines anyway and 'tuned' them in the B Brooks manner.

                        You're welcome to take a look at it if you're near Hougham, Lincs.

                        Dave

                        Attached files

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                        • #13
                          chaser wing fit - any ideas????

                          Hi Paul. Funny thing is that I have posted a similar question in the Chaser Owners Group (yahoo).

                          I was asking if anyone had converted the pylon to fold down, which Dan Curtis has! He has posted some great photos on that forum. At the moment, I have constructed a wooden frame which I lift the wing on to, rating it on the A frame. The height of the wooden frame is such that you I can roll the wing forward so that the socket drops onto the top of the pylon. Because the wooden frame takes the weight, it is possible to keep the socket "central". It woks, but Dans solution is the way forward!

                          I will try and upload a photo of the frame if I can work out how!

                          Cheers

                          Denis Morgan

                          Attached files

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                          • #14
                            chaser wing fit - any ideas????

                            Denis,
                            I have tried a similar solution to 'the frame' but find that any device that supports the wing on the base bar causes the 'hang tube' to go off 'bonk'.
                            However, your frame is clearly much more 'solid' than any of my efforts and therefore worth investing some effort into making.
                            Did not know that Dan had achieved a folding frame - I have tried to join yahoo Chaser group but computer will not play ball (will try again to view Fans picture's).

                            Comment


                            • #15
                              chaser wing fit - any ideas????

                              I'd like to see Dan's solution too. I tried to sign in to the Yahoo group that I've been a member of forever, and it told me my membership had been 'recycled' through lack of use (at least 6 months!).
                              It invited me to re-register, but I declined. The group is virtually dead and should really be moved to here anyway.
                              So I can't see the pictures either.

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