Same 30"cat, limited experience

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  • CornelP
    Senior Member
    • May 2009
    • 745

    #31
    Just waiting for the spray filler to harden... and find a safe way to mount them in a removable way.

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    • CornelP
      Senior Member
      • May 2009
      • 745

      #32
      THERE SHE IS... still needs a clear coat on the wings and the custom grip reaper decal and the hardware (will be in tomorrow )
      I sandwiched the hull between a piece of ply and one aluminum, fixed 2mm bolts and inserted in the wings 2 pieces of Al tubing (tight fit). They are solid enough for cruising but easy enough to remove for transport.
      Attached Files

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      • CornelP
        Senior Member
        • May 2009
        • 745

        #33
        Got the wire drive parts today .Wire is glued with Loctite 648 (extra strength). Will assemble and test in the next couple of hours...
        Attached Files

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        • CornelP
          Senior Member
          • May 2009
          • 745

          #34
          And parts installed. I drilled a small access hole for oiling, should be useful...
          Attached Files

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          • Simon.O.
            Fast Electric Addict!
            • Oct 2007
            • 1521

            #35
            Originally posted by CornelP
            And parts installed. I drilled a small access hole for oiling, should be useful...
            Interesting idea. I see your shaft has the nose cone fitted. This will mean the stut has to be removed to remove the shaft. Do I see this right ??

            I have looked at that idea before, the nose bullet will preven the tail shaft being lost in the event of a wire fail.
            I went the other way and have a nose bullet with a recessed grubscrew that grips the 062 wire. If I blow a wire then I keep the tail shaft and prop.

            I can also pull my shafts for cleaning and relubing very quickly.
            See it....find the photos.....sketch it it....build it........with wood

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            • CornelP
              Senior Member
              • May 2009
              • 745

              #36
              Yes, you are right, unfortunately.... I did not see this until I fixed the stuffing tube... without it, you disconnect motor coupler, slide it back on the wire, lift e voila... but not anymore. I am now thinking to upgrade the shaft fixing with an M5 (more solid) and an easier to remove nut.
              I will probably look into your idea, it makes more sense.
              Anyway, the lathe guy sent me 4 sets instead of one... he must have been bored on the job :), but that is no major problem.

              Comment

              • Simon.O.
                Fast Electric Addict!
                • Oct 2007
                • 1521

                #37
                Originally posted by CornelP
                Yes, you are right, unfortunately.... I did not see this until I fixed the stuffing tube... without it, you disconnect motor coupler, slide it back on the wire, lift e voila... but not anymore. I am now thinking to upgrade the shaft fixing with an M5 (more solid) and an easier to remove nut.
                I will probably look into your idea, it makes more sense.
                Anyway, the lathe guy sent me 4 sets instead of one... he must have been bored on the job :), but that is no major problem.
                Dont get me wrong there is nothing wrong with the setup you have. When I get a lathe I will be machining that type of shaft.
                All you need are two things.
                1. Scribe marks on the strut once the best position is found
                2. A board or table to ensure that the strut is set correctly prior to a days running.

                I do this anyway.

                If you have more questions on wire drives and tail shafts and do not wish to clutter a fine build thread then please PM me, I am always happy to help.
                See it....find the photos.....sketch it it....build it........with wood

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                • thegreat1
                  Senior Member
                  • Jul 2008
                  • 249

                  #38
                  cornelp were you in 31? im in vfa-86. 31 makes me laugh now because they are the tomcatters but they fly rhinos

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                  • CornelP
                    Senior Member
                    • May 2009
                    • 745

                    #39
                    @ thegreat1: OH HOW I WISH I WAS.... not even the right continent, sorry...
                    But I know what you mean... that's a pic I did for a pal
                    Attached Files

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                    • CornelP
                      Senior Member
                      • May 2009
                      • 745

                      #40
                      Ok, back from holidays, got the new ESC. The Seaking 70A could only move the motor for about 5 sec, then it stopped. I found a Himodel 125A for a very good price, modified it for watercooling and waterproofed with acompound called PLASTIK70, a PCB protection spray. Should be able to get what I want: maiden voyage!!!
                      One more thing on the list: a new radio... the Futaba I was counting to use was shorted last week... kids with wet hands on the beach...
                      Anyone used the Spektrum DX5E?
                      Attached Files

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                      • CornelP
                        Senior Member
                        • May 2009
                        • 745

                        #41
                        Just did the first wet test (bathtub...). It floats ok (2400 grams fully loaded), no leaks.
                        Did the mistake to try full throttle... lucky for me I was in the kids' bathroom... one wall got soaked. It was a 45mm CF prop.
                        This week i definitely have to take her out...

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                        • CornelP
                          Senior Member
                          • May 2009
                          • 745

                          #42
                          Tested it today... The glued connection wire/strut failed, just as it was getting up... will retest asap...

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                          • CornelP
                            Senior Member
                            • May 2009
                            • 745

                            #43
                            Finally got to run it today... 40-50kph, quite slow as I was afraid to crash
                            I am still an absolute beginner in controlling these things...
                            Need a bigger rudder for sure, but for the rest, the ride was smooth...
                            Setup is Feigao 10XL, Hitec125A ESC watercooled, 4s Lipo.

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                            • Karfrik
                              Fast Electric Addict!
                              • Jun 2009
                              • 1177

                              #44
                              nice to see it flying above the water!!!.............congratulations!!,.........Al bert/karfrik

                              Comment

                              • CornelP
                                Senior Member
                                • May 2009
                                • 745

                                #45
                                Thanks a lot, it was a fun day, ran the EWT, Bootlegger and cat, all performing better than I thought... especially the cat. I know I can get more of this hull, maybe a 45mm prop (ran it on 43ish) and 5S or 6S instead of 4S2P... the esc can take it no problem. Everything was barely warm after 5min, so the Feigao cooling did its job, as well as the brass one I did on the esc.

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