F7F-3 Tigercat

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Official Freewing Twin 70mm AL37 Airliner Thread

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  • Originally posted by 406PIlot View Post
    Wildman Thanks. I apparently missed that while digging through all 100 pages. I am 99% sure I'll be doing that same mod in the very near future.
    Your welcome Sir. When I see mods like that I Have a note book I put it in I write down what it is and the post # and page I seen it on. saves a lot of time looking if I ever need it. It's like surfing the web and book marking things you may want to reference later

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    • What dual rates is everyone using for aileron, flaps, elevator and rudder? The manual is recommending the same high and low rate for aileron and elevator. Is this correct? I'm a little confused about the recommend flap setup. It appears there is only 1 setting for high and low rates for flaps. I can't find the recommended D/R for take off and landing flaps.

      I would appreciate if someone is willing to share your setup.

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      • The two Flap settings that are recommended starting points they have come up with during their testing of this plane. The Low rate is normally used as take off and the High rate is normally used for landings For your first flights. Then you can change them if you want more or less on both. Also they recommend mixing down elevator in with the flaps to keep it in level flight when the flaps are deployed. Here again this is just the recommended setting to start with. So I would start with their recommended throws. Then fine tune from there t for your own preference Every Pilot has their own settings and the planes will not all fly the same just to many variables evolved. Such as, your finale Aircraft weight, CG, Density altitude, elevation of flying site etc. You will love this plane I love flying mine, flies like a huge Trainer. So finish it and get out and have Fun

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        • Originally posted by salali View Post

          I would appreciate if someone is willing to share your setup.
          If you fly scale and no aerobatics, the dual rates are a non-requirement. Pretty sure you will find that no flap/elevator mix will be needed. I set a little mix for the maiden, and removed it prior to flight #2.

          Have fun....consider adding the RF chokes for an added margin of safety.

          If you will fly it a lot, consider reinforcing the top skin with carbon fiber inside the wing’s wiring channel as discussed in this forum. Avoid the top skin cracks like I got after a lot of flights. See photo below after 2,000 flights and aerobatics.

          Search “ferrite”, “choke”, “RF choke” for info on these important items.

          -GG

          Click image for larger version  Name:	BC45EA5B-895D-4AD0-B62C-A48FA73EB578.jpeg Views:	0 Size:	74.0 KB ID:	306546

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          • Thanks Wild Man & GliderGuy for feedback and recommendations. I think i'm ready to go.

            I have a question about the neutral flap position. I have aligned the inner and outer flap w/ the leading edge of the aileron. I noticed the alignment causes an inward curve towards the fuselage which is causing a bit of a gap. Trimming up the inner and outer flap causes a misalignment. I hope this make sense. I have uploaded a few pics. Does this look right?
            Attached Files

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            • Here is a picture that gives you and idea how my flaps line up.

              Click image for larger version

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              All surfaces are neutral or in line with each other.

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              • Originally posted by 406PIlot View Post
                Here is a picture that gives you and idea how my flaps line up.

                Click image for larger version

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                All surfaces are neutral or in line with each other.
                Thanks for posting a pic of your setup. I think I am good to go.

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                • Originally posted by salali View Post

                  Thanks for posting a pic of your setup. I think I am good to go.
                  I have built 3 AL37s...each is a little different on the amount of gaps. It depends upon how careful the person installing the flaps at the factory was.

                  Simply line up the trailing edges all the way from the tip to the root, and you should be fine. Any gap that happens to show up is not an aerodynamic issue that far back on the wing anyway.

                  -GG

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                  • Is it possible to remove the graphics from the model with the Motion RC graphics already applied and replace them with Callie graphics. It looks like the biggest challenge might be the tail. The base white isn’t available and I’m ready to go!

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                    • Originally posted by gentile View Post
                      Is it possible to remove the graphics from the model with the Motion RC graphics already applied and replace them with Callie graphics. It looks like the biggest challenge might be the tail. The base white isn’t available and I’m ready to go!
                      Trying to remove them will more than likely pull up that base coat. I had issues with the base coat coming up on my base white one when masking for paint. I used several different brands of tape but all netted the same result pulled up base coat.

                      Mike
                      \"When Inverted Down Is Up And Up Is Expensive\"

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                      • Originally posted by gentile View Post
                        Is it possible to remove the graphics from the model with the Motion RC graphics already applied and replace them with Callie graphics. It looks like the biggest challenge might be the tail. The base white isn’t available and I’m ready to go!
                        Maybe not the best option, but here is the match to the base color....Home Depot

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