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Thread: WACO YMF


  1. #12926
    mrdhud's Avatar
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    RE: WACO YMF

    Thanks Ed
    Dan Hudson WACO Brotherhood #45
    GIT-ER-DUN \"Build a WACO\"

  2. #12927
    WacoNut's Avatar
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    RE: WACO YMF


    ORIGINAL: mrdhud

    Anthony,

    To look at your ΒΌ Waco it’s hard to imagine you had all those problems have you maiden her yet?

    Dan,
    Sorry I missed your post. I have not flown it yet. I hope to get it into the air this summer. I have so many things going on right now I am just not sure when I will get to it. I went at that build almost non stop for 9 months with alot of long weekends in there as well as a full week of vacation putting in 12-14 hr days on the build. It's not a show piece but I think it turned out pretty good considering. I am more proud of that plane than any I have built just due to the difficulty of the build and the labor of love.
    I am sure it will fly fine when the time comes.
    Later!!
    Anthony
    WACO Brother #30 Cub Brother #17
    It's not the hours you put in It's what you put into the hours.

  3. #12928

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    RE: WACO YMF

    Does anyone have the dimensions of the YMF rudder trim tab (full scale)?

    Dave.
    W/B #180

  4. #12929

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    RE: WACO YMF

    It's been one of my favorite planes for a long time, I would love to stick build one. Does any body have a set of plans they would like to sell or copy. I'm interested in the Pico 1/5th scale version. If you do please contact me at, rccrasher65@yahoo.com Thanks George
    George Waco brother#209

  5. #12930
    skylarkmk1's Avatar
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    RE: WACO YMF

    Dave,

    I do not have the measurements (and do not have a YMF available to measure) but the Pica Plans has the rudder trim tab drawn pretty accurately. I compared the plans to a photo I have and the visual comparison is very close (scaled down the PDF plans to match the photo size). I would go with the Pica Plans drawing and scale it up or down accordingly if necessary. If I may suggest, do not offset the trim tab on your model, it will only fight the servo.
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    John F Howard (aka skylarkmk1)
    AMA 10955, WACO Brotherhood #26, AWC, NWC

  6. #12931
    skylarkmk1's Avatar
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    RE: WACO YMF

    George,

    Contact the AMA Plans sevice and ask for plan # 35406 and also be sure to ask for the templates (I think the cost is down to $35). With the plans and templates you have all the info to cut your own Pica YMF kit. If you need the short manual with the modifications just ask (stronger wing joiners, dual aileron servos, engine mounts, etc.). There are other mods in this thread but you will need to ferret them out.
    John F Howard (aka skylarkmk1)
    AMA 10955, WACO Brotherhood #26, AWC, NWC

  7. #12932

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    RE: WACO YMF

    John, thanks for all the info. I would definately need theconstruction book for the plane. I want to make it a winter project so I have some time to get all information I need to create this great masterpiece of an airplane. If you know what the kits are going for and where to get one would help, but I'm an old school builder,that would prefer building every thing myself. thanks againGeorge
    George Waco brother#209

  8. #12933

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    RE: WACO YMF

     Thanks a million john, george
    George Waco brother#209

  9. #12934

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    RE: WACO YMF

    Hi Ed,

    the 3W60 is a bit to small for the 3rd scale Waco but more than enough for the quarter scale. I have several customers who installed a Zenoha 62 in the quarter Waco.
    The smaller Waco has the same glass fiber parts as the third scale with the kit. You may also obtain a dashboard for both of the planes at Noll-Modelltechnik but nothing else of the interior (no pilot seat or stick etc.).

    Please do not hesitate to contact e if you are in need of more details.

    Peter
    Brother #170

  10. #12935
    Errol Levin's Avatar
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    RE: WACO YMF

    John

    Sorry, when I asked I should of been more explicit. I am building a Barth 1:4 scale YMF-5, so the dimensions required would be those for that particular model.


  11. #12936
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    RE: WACO YMF

    Peter

    I am putting the 5 cylinder Saito Radial in my 1:4 scale. What's your opinion regarding this?

  12. #12937
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    RE: WACO YMF

    Ed

    I'm building the Barth 1:4 scale kit at the moment although very slowly. All the fibreglass parts are there, beautifully moulded. The balsa parts fit together perfectly. The plans are accurate. The hinges and parts are good quality. I recommend the kit.


    ERROL

  13. #12938
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    RE: WACO YMF

    Just remember, that when you are building your cockpit, the full scale cockpit floor is sitting on the bottom wing spars. Please don't make one of the cockpits that just go down about halfway. Look back in the thread to see how I made my seat.

    Bill, Waco Brother #1
    Its easy, just glue all the pieces together, and sand off everything that doesnt look like an airplane.

  14. #12939

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    RE: WACO YMF

    Hi Errol,

    the 53 ccm Saito should be a perfect fit. The Laser 300 or 360 (50 or 60 ccm) are as far as power is concerned also perfect power plants, so the 5 cyl. Saito should find a nice place to work for. Its turning a 20 x 10 propellor as the 360 Laser does (22 x 8 this is the one of my choice with the Laser and the small Waco.)

    Peter

    Brother #170

  15. #12940

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    RE: WACO YMF


    ORIGINAL: skylarkmk1

    Dave,

    I do not have the measurements (and do not have a YMF available to measure) but the Pica Plans has the rudder trim tab drawn pretty accurately. I compared the plans to a photo I have and the visual comparison is very close (scaled down the PDF plans to match the photo size). I would go with the Pica Plans drawing and scale it up or down accordingly if necessary. If I may suggest, do not offset the trim tab on your model, it will only fight the servo.

    Thank you, John.

    Could someone who has the Pica plans, give me the trim tab dimensions, and I can go from there. Do the Barth plans show a trim tab?

    John, I wasn't planning to offset the tab, and as I stated at the start of my build this is not going to be a "Scale" model of any particular Waco...(with apologies to Bill []) However, the tab is a prominent feature at the rear of the plane, so I would like to incorporate it.

    Cheers,
    Dave.
    W/B #180

  16. #12941

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    RE: WACO YMF

    errol,
    just my two cents,i too am building the barth 1/4 and everything you said aboutthe kit is very true. i'm using the os 300 twin, i do have an old model saito 5 cylinder radial that is on my fllet bipe . i did fit the radial to the firewall and cowl and it looks like it was made for the bird.

  17. #12942
    FliteMetal's Avatar
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    RE: WACO YMF

    Isn't the tab on the WACO Classic a booster tab instead of a trim tab?
    Ed Clayman,
    FliteMetal.com

  18. #12943
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    RE: WACO YMF

    Dave,

    The dimensions (taken from the 1/5 Pica plans) of the rudder trim tab are;

    Top – 5/8”
    Bottom – 5/16”
    Height – 2”

    Location – 4-3/8” up from the bottom of the rudder along the hinge line to a line at right angles to the hinge to the bottom of the tab
    John F Howard (aka skylarkmk1)
    AMA 10955, WACO Brotherhood #26, AWC, NWC

  19. #12944

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    RE: WACO YMF

    The tab is a ground adjustable trim tab held in position with a nut and bolt....not a booster. Mitch

  20. #12945
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    RE: WACO YMF

    Ed,

    Which Waco model do you want to do? ATO, CSO, U/YMF, UPF, A/SRE, HKS? There are over 100 different models that Waco produced. What scale?

    The 1937, what model was it?

    I have a number of plans, most are 1/6th or 1/5th scale and a couple of 1/4 scale and there are more out there.
    John F Howard (aka skylarkmk1)
    AMA 10955, WACO Brotherhood #26, AWC, NWC

  21. #12946
    skylarkmk1's Avatar
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    RE: WACO YMF

    Ed,

    Mitch is correct, see photos.
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    John F Howard (aka skylarkmk1)
    AMA 10955, WACO Brotherhood #26, AWC, NWC

  22. #12947
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    RE: WACO YMF

    I am going to do another YMF. I have the WHD and will build it out later on. I want to get the YMF into
    the air rather quickly. There are a few other builds going on at this time. I have a pair of 1/9th B-47E
    -IV's and been working up a Northrop-Grumman B-2 design, all of these are electric. Quarter YMF will
    have 3W-60 in it.
    Ed Clayman,
    FliteMetal.com

  23. #12948

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    RE: WACO YMF

    John, thanks for the dimensions.

    Cheers,
    Dave.

  24. #12949
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    RE: WACO YMF

    Dan, good day flying. Thank you for the wire, it look's great.
    Robert
    Cub Brotherhood #3\\ Ryan STA Brotherhood #4
    Corsair Brotherhood #56\\ Waco Brotherhood #184

  25. #12950
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    RE: WACO YMF

    Hi Bill. I am building the Great Planes Waco YMF-5 Classic also. I'm doing mine electric powered, and changing the registration number on the plane to a variation on my AMA number, N417DH. (AMA 55417) This will be my 5th large scale electric powered plane. I will be starting a build/conversion thread over in the Electric forum. Just got the motor mounted. Hope to fly her in another week or so.

    Pic of the motor mounted on the Waco, and of my large sized electric fleet. (Does not include two smaller planes on repair bench.)
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