P-38 - The Ultimate EPO Lightning

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my Dynam F6F

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  • my Dynam F6F

    Alright ladies and gent's, I was going to post this in the main F6F thread that's going on but its going to have a good amount of photos and I didn't want to derail that thread so here we are:

    Got the big box from the big brown truck this morning.

    Packaging was fine, wings, fuse, tail and horizontal stab have their own individual boxes wrapped in plastic, everything was fine no dings or dents:


    Overall finish was good, paint was clean and crisp, no blemishes, on par wit the FMS and Freewing aircraft that I've had, decals are on a sheet, there are none factory applied, we'll get to that later. Only thing I didn't like was aft of the cockpit it is clear that they glue to halves together and there is a gap, could use a little better QC.



    - Assembly, largely easy, the directions in the book are quite simple and lack detail, but anyone who has assembled before will have no problems.
    - Screws, I don't get how hard it is for manufacturers to label what screws are what, again an experienced flyer can figure it out, but labeling the bags with screws would just take the guess work out.
    - The tail assembly, the plastic bit that the screws go into, appear to be put in place before the two halves are glued together, they were both canted at an off angle to where the screw needed to be, didn't take much to orient them correctly, but again something a quick QC check may have caught.

    Aside from the small bugs above assembly was done quickly within an hour, retracts appear decent, they are certainly not made of steel but they seem sturdy enough to hold up to a fairly hard landing. Now that said they do rotate when they retract so that is something I have not dealt with yet and adds another failure point, so I'm going to do my best to get my approaches down and try and avoid any hard landings. I picked up an overnight OT shift tonight so I still have to check the CG and all that tomorrow before I maiden, weather is looking good so hopefully it will be a successful flight.
    [hr]
    Ah yes the decals..
    [hr]
    So as I mentioned up top the decals come from the factory on a sheet, there are ZERO decals applied to the plane out of the box. This is not a complaint by any stretch, but when I saw that and the clean foam was begging for some paint. Now those of you that have seen some of my other planes know that I can't resist a custom paint job, so I cracked the box open at noon and finally finished painting around 7pm.

    The pre-shading/weathering and exhaust I did with the airbrush, motor detailing and cockpit by hand, and the rest was all Krylon rattle cans.

    Primed the entire plane with flat Krylon white, few light coats. Then repeated the process with the orange and green, and here's the finished result, of which I am super happy with and almost want to hang the thing up and not risk loosing it in a crash or something.




    [hr]







    [hr]
    And just in case anyone thinks I was on drugs when I painted today, I swear that I am not.

    Here is the inspiration, the US Navy used these brightly colored F6Fs for testing during Operation Crossroads in '46 as drone aircraft to test atmospherics after atomic bomb testing, as well as for other pilot-less aircraft tests.






    [hr]
    Oh yeah, and the retracts (sorry for the vertical video)


  • #2
    RE: my Dynam F6F

    Very nice SOB. I like how you darkened the panel lines. How did you do yours? Excellent!

    Comment


    • #3
      RE: my Dynam F6F

      Originally posted by Thosmosis
      Very nice SOB. I like how you darkened the panel lines. How did you do yours? Excellent!
      Thank you.

      I used the same technique that I use when I do scale modeling, once I had the entire thing primed white I just took my airbrush with some Tamiya flat brown earth and went over each of the lines. It quick, fast and dirty, and if I get off line with what I'm tracing it doesn't matter once it gets covered up by the final color. Simple process and it works great.

      Comment


      • #4
        RE: my Dynam F6F

        Maiden was a success, though there needs to be some fine tuning for sure.

        First off is the weight, I was concerned with the CG from the get-go, I took out to the field today all my 4S batteries, an admiral 4000, 3000's, and 2500's. With the 4000 all the way forward and having added 3oz of weight the CG was quite close. With the 2500 and 3000's I'm probably going to have to add another .5 or even a full ounce of weight to get the CG spot on.

        Takeoff was easy on a short run, flying was no issue, I put an Eagle A3L gyro in which needs to be tuned and the gains turned down a bit, not sure if it'll show in the video but at high speed there is some fluttering, easy fix. When I was putting the plane together I moved the rod to the very outside hole on the control horn as it looked to me that the throws were minimal, but the plane was pretty twitchy today so I'm going to put it back where it came stock from the factory and see if that helps it at all. If it persists maybe mix in a little expo and go from there.

        Stall characteristics are nice, went up twice throttled back and held the stick back gently, each time the right wing dipped a tiny bit, no violent spins or otherwise.

        Landing was easy on my part anyways, 1/4 throttle to over the runway and cut to idle and it glided down gently, would have been a perfect first landing if it weren't for the bush in the middle.....but that's my own fault for landing where I did, just resulted in a minor scuff to the cowling that I'll cover up with some paint.

        Very happy with this plane, have some more sticky weights coming on Friday and once I get the CG nailed down, I'll be back out there to get it trimmed in, and should be a nice flier for me.

        Fairly boring video, landing at the end has some NSFW language.

        Comment


        • #5
          RE: my Dynam F6F

          Hi SOB,
          Yep, when I first saw the paint job, it did cross my mind that drugs might be involved :D But it turned out to be a nice tribute. Kudos!

          Looks like she really glides in nice for the landing. That gives me hope for the retracts. What are your thoughts on the power. Can it do scale maneuvers without the fear of it falling out of the sky?
          So close to pulling the trigger...

          Jeff

          Comment


          • #6
            RE: my Dynam F6F

            Jeff,
            I think you'd be ok to do scale stuff without any issues, that's what my plan is, I'm going to get out there Monday and see how it handles, once I have the CG figured out and it trimmed in I can give you a better answer, I really didn't give it full power or try and do anything exciting this first time around. But it doesn't feel sluggish at all in turns or in the pattern.

            Come Monday I'll have a better answer for ya.

            Comment


            • #7
              RE: my Dynam F6F

              Greetings,

              I know you would love this plane!!

              Man, you rocked the paint job!!!! Very Cool!

              Looking forward to your next video once you get the CG squared away.

              Best of luck.

              Bill L.
              In Okla.

              Comment


              • #8
                RE: my Dynam F6F

                SOB,

                Very nice paint job and using Krylon rattle cans! At first (before going through all of your post) I thought it was a post war racer paint job, but after reading all of your post I learned something!

                Great stuff!

                Kevin
                Off with one helluva roar!
                AMA 1085465

                Comment


                • #9
                  RE: my Dynam F6F

                  Absolutely beautiful plane. Your video just made my mind up. Been sitting on the fence as to buy one and now. I'm sure. Normally a corsair jockey but since this plane came in stock at motion I've been just waiting. Nice job. Looking forward to finding out what you come up with on the cc. Also plan to run a gyro. Have three in 2 corsair s and a dynamic Pitts.
                  Dewey l

                  Comment


                  • #10
                    RE: my Dynam F6F

                    Update:

                    Got a few minutes to tinker with the plane over the weekend, I ended up adding 4oz total to the front of the plane...lol. And I've got the CG between 75-80 aft of the leading edge, the manual calls for 70-75, now I'm using the high-tech finger method, but even at 3.5oz it still was a tad tail heavy. So I went for the extra half oz and went to 4 and it balanced nicely right at 80. My 190 and Texan are both a tad nose heavy, obviously its best to be balls on, but if its a little on the nose heavy end I don't mind.

                    Went out to the field today, took some video with the GoPro, it's a bit out of sequence, plane just needed a little left aileron trim (I could have moved the clevis in a bit before taking off but was being a bit lazy so just trimmed it out on the radio, eventually I'll get it squared away on the plane) And that was about it. As I mentioned I moved the servo rod back to the stock position on the horizontal stab servo and dialed in the gains on the A3-L gyro as well as adding 40% expo and she flew really nice, less tenancy to bounce up and down when making altitude adjustments. cruises with some pep at 1/2 to 3/4 throttle and she'll pick up some speed when its wide open. Vertical climb is pretty good and it'll have no issue performing scale maneuvers.

                    But but but...I've noticed on the other forum and here about the concern on the retract's and I did have problems with them today. On the first flight today (the first landing at the end of the video) It took me about 5 cycles of the retracts to get both landing gear down, and then I proceeded to have an uneventful landing, I wouldn't say it was the smoothest I've ever made but I don't think it was necessarily jarring either, you watch it and be the judge. Got the plane over to the bench and cycled the landing gear 6 times, with a few seconds in between and there were no issues. On the second flight for the life of me the same (right) gear would not come down, tried cycling several times, and cycling with some abrupt up aileron to see if I could get it loose, but no dice. Went for a belly landing which was thankfully a greaser, but could not get the gear to work after that. So it's gonna require some further investigation as to the problem. So once that's squared away, either fixed or perhaps there is a better replacement out there I don't know this model is poised to be one of my favorites!

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