Roban - World Class Scale Helicopters

Official Nexa 2108mm P-38 Lightning ARF Thread

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  • Aros
    Lead Adminstrator / Warbirdaholic

    • May 2013
    • 8228
    • Astoria, OR
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    #21
    Sorry no intel on a Marchetti...You never know! Good luck with the build when you get to it!
    My YouTube RC videos:
    https://www.youtube.com/@toddbreda

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    • papa626
      King Louis

      • Jun 2019
      • 12
      • Send PM

      #22
      The spinners came with the kit. Attached is everything that came in the box.

      Click image for larger version

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      Originally posted by bartje
      Subscribed!

      @ Papa626, thanks for biting the bullet and being the first one to document the build/assembly of this wonderfull machine.
      I saw you pulling out a pair of spinners in your video, did you order those separately or where they included in the kit?
      The MotionRC site doesn't mention that there are any spinners in the kit, let alone three blade spinners and the correct three blade size options for this plane.

      @ Aros,maybe you can answer this, I know in the early days this kit was sold in Europe for something in the region of € 600 - € 700.
      Motion is selling it for about € 919 now. I assume the retracts have been added as a standard now, but are there other additions that where done between now and then?

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      • papa626
        King Louis

        • Jun 2019
        • 12
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        #23
        I don’t think you will need to flip it upside down to install batteries. The battery doors are all the way forward and will only require a tilt up in my opinion. I think it’s also good for stability of flight that batteries are located below the wings.
        Originally posted by OV10
        Aros
        So I've been eyeballing this for a long time (d/l'd the manual over a year ago) and trying to determine how in the heck am I gonna get the batteries located out of the booms into fuse.
        My biggest arse ache with how VQ did this is it was obviously designed for a petrol driven bird because having to flip a 80+ inch airframe upside down to load LiPo's in the bottom
        of the booms is just such a huge inconvenience and goes against my long standing airframe setup of electric twins with paralleled power in the fuse.
        Is there per any chance that this is being looked at by the factory to get the batteries relocated to the fuse??
        If Alpha and FW had done this battery/boom design with the 1600 Lightning, I would bet it never would had been as successful as it is.
        I would dearly like to join TJ in owning this but not if I have to severely mod it to make it a battery friendly bird.:face_with_raised_ey

        Comment

        • OV10
          >>>Twins are 2X the Fun<<< (Squawk Moderator)

          • Sep 2014
          • 4264
          • Owego, NY
          • Send PM

          #24
          Originally posted by papa626
          I don’t think you will need to flip it upside down to install batteries. The battery doors are all the way forward and will only require a tilt up in my opinion. I think it’s also good for stability of flight that batteries are located below the wings.
          papa626
          Look forward to see if you still have that opinion after completing the build.
          Having been a long time twin operator, I disagree with the weight being outside of the fuselage as providing stability.
          With a battery in each boom it is also setting you up to the dreaded dedicated power source for each motor which in the case of an unforeseen LVCO will induce the proverbial graveyard spiral. :anguished:
          Best of luck,
          Warbird Charlie
          HSD Skyraider FlightLine OV-10 FMS 1400: P-40B, P-51, F4U, F6F, T-28, P-40E, Pitts, 1700 F4U & F7F, FOX glider Freewing A-6, T-33, P-51 Dynam ME-262, Waco TF Giant P-47; ESM F7F-3 LX PBJ-1 EFL CZ T-28, C-150, 1500 P-51 & FW-190

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          • Twowingtj
            If It Flys, I'll Try It

            • Dec 2016
            • 1907
            • Southerntier, NY
            • Send PM

            #25
            papa626 Thanks for sharing your pics of the P-38 so far. When you get to the point of checking out the nose gear, I'd like to find out what the retract body is made of and about how many degress of travel it has. It looks to be more than 90. Thanks

            Comment

            • Aros
              Lead Adminstrator / Warbirdaholic

              • May 2013
              • 8228
              • Astoria, OR
              • Send PM

              #26
              If this version is anything like my Legend Models/VQ was, then getting the fowler flaps to work properly may shave months off your life.

              My YouTube RC videos:
              https://www.youtube.com/@toddbreda

              Comment

              • bartje
                The boss when the wife is not at home.

                • Jan 2021
                • 20
                • Pelt, Belgium
                • Send PM

                #27
                Originally posted by OV10

                papa626
                Look forward to see if you still have that opinion after completing the build.
                Having been a long time twin operator, I disagree with the weight being outside of the fuselage as providing stability.
                With a battery in each boom it is also setting you up to the dreaded dedicated power source for each motor which in the case of an unforeseen LVCO will induce the proverbial graveyard spiral. :anguished:
                Best of luck,
                What's against running an extra pair of cables from left to right to interconnect the batteries to form an xS2P setup which enables both ESC's to draw power from both batteries?

                Comment

                • ScottGantt
                  Member

                  • Oct 2018
                  • 2
                  • Send PM

                  #28
                  Has anyone had difficulty with the flap system on this aircraft? I cannot get enough movement and there is a lot of play in the configuration. Like to see pictures of how anyone set up their servos on this one.
                  Thanks-

                  Comment

                  • Aros
                    Lead Adminstrator / Warbirdaholic

                    • May 2013
                    • 8228
                    • Astoria, OR
                    • Send PM

                    #29
                    Welcome Scott...Yes as I have mentioned previously the flaps are a giant pain due to the wonky mechanisms and slop. We never could figure out how to remove the slop and adjusting each servo to perfection proved futile. We finally gave up and just lived with the slop. It was by far the most challenging aspect of the build.
                    My YouTube RC videos:
                    https://www.youtube.com/@toddbreda

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                    • papa626
                      King Louis

                      • Jun 2019
                      • 12
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                      #30
                      Only way to get the screws through is by drilling holes.
                      Attached Files

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                      • papa626
                        King Louis

                        • Jun 2019
                        • 12
                        • Send PM

                        #31
                        Ill let you know by this weekend.
                        Originally posted by Twowingtj
                        papa626 Thanks for sharing your pics of the P-38 so far. When you get to the point of checking out the nose gear, I'd like to find out what the retract body is made of and about how many degress of travel it has. It looks to be more than 90. Thanks

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                        • Ron Dyrda
                          Member

                          • Jan 2021
                          • 12
                          • Send PM

                          #32
                          Hi Aros I am in process of ordering the Nexa P-38 I would like to power it with two RCGF 10cc or 15 cc gas motors. The elect. retracts that come with the plane do they need to be up graded ?
                          or are they ok to use.

                          Thanks Ron

                          Comment

                          • Aros
                            Lead Adminstrator / Warbirdaholic

                            • May 2013
                            • 8228
                            • Astoria, OR
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                            #33
                            Hi Ron, I honestly do not know if the retracts that come with our version of this model are needing to be upgraded by some or not. My experience was with the old Legend Models (VQ) version 6 years ago which I used Robart retracts for. I would think they will be decent retracts. Good luck with the build and welcome!
                            My YouTube RC videos:
                            https://www.youtube.com/@toddbreda

                            Comment

                            • papa626
                              King Louis

                              • Jun 2019
                              • 12
                              • Send PM

                              #34
                              They are 90 degrees travel. But at the same time, I believe you will still get the scale look because of the slight angle of the nose. Wheel extended is about an inch back from the front of the wheelwell.

                              Originally posted by Twowingtj
                              papa626 Thanks for sharing your pics of the P-38 so far. When you get to the point of checking out the nose gear, I'd like to find out what the retract body is made of and about how many degress of travel it has. It looks to be more than 90. Thanks
                              Attached Files

                              Comment

                              • Twowingtj
                                If It Flys, I'll Try It

                                • Dec 2016
                                • 1907
                                • Southerntier, NY
                                • Send PM

                                #35
                                papa626 Thanks for the answer.

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                                • papa626
                                  King Louis

                                  • Jun 2019
                                  • 12
                                  • Send PM

                                  #36
                                  For the front nuts, I’m divided between self locking nuts or using loctite on the ones I have on now. I also thought about doing safety wire nuts but can’t find any in 5mm. Any thoughts??
                                  Attached Files

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                                  • StanBr
                                    Member

                                    • Jan 2021
                                    • 29
                                    • The Netherlands
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                                    #37
                                    Hi Everyone,

                                    Received my Nexa P-38 (= VQ Models?) a couple of days ago and to be honest I am a bit disapointed. The reason?

                                    - The wing is weathered but the rest of the plane isn’t.
                                    - The top half of the cockpit does not fit very well. A lot of tension and big gaps between the leading edge of the wing and the cockpit top half.
                                    - Attaching the gear doors and make them move with the gear is challinging. The whole setup with bal-point pen springs and cotton thread to make it work is i.m.h.o. not really scale like and professional.
                                    - The play in the 4 flap sections is something that can’t be resolved (as mentioned before by other forum users).

                                    Have sent two e-mails to Motion RC Europe Support but no reply...

                                    Best regards,
                                    Stan

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                                    • Ron Dyrda
                                      Member

                                      • Jan 2021
                                      • 12
                                      • Send PM

                                      #38
                                      Hi Stan

                                      I am expecting my Nexa P 38 to day, I hope i'm not disappointed in the purchase , its a lot of money if the quality is not their.

                                      Ron

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                                      • StanBr
                                        Member

                                        • Jan 2021
                                        • 29
                                        • The Netherlands
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                                        #39

                                        Hi Ron,

                                        Indeed, for this kind of money you expect a decent model. Hopefully you’re not disapointed.

                                        Best regards,
                                        Stan

                                        Comment

                                        • Aros
                                          Lead Adminstrator / Warbirdaholic

                                          • May 2013
                                          • 8228
                                          • Astoria, OR
                                          • Send PM

                                          #40
                                          I am a P-38 nut and the Legend Models version was my first giant scale balsa P-38. I came to discover that the model was more of what I would consider "sport scale". Definitely not to be confused with a Yellow Aircraft or Ziroli P-38, but you also pay a lot more for those. I learned to live with the quality discrepancies especially once she was airborn. In the skies is where she absolutely dominated and was a real treat to fly.
                                          My YouTube RC videos:
                                          https://www.youtube.com/@toddbreda

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