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  1. #251
    TonyBuilder's Avatar
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    Break time for a few days, I'm out of town on business for a few day . This will give me time to think about what is next.

    I do know I need to finish the wing and mount it to the fuselage before I go any further. This needs to be done before I mount the stab and do the cockpit and canopy. This will also give me a chance to do some pre- CG checking before I do the canopy.


    TB
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  2. #252
    FlyerInOKC's Avatar
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    Nice article TB! I don't know why but when I read the name "Wsiewolod Jan Jakimiuk" I thought of "Yakima Canutt" the famous cowboy and stuntman.
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    I bought a reusable kit the other day, it came with it's own large black trash bag!

  3. #253
    TonyBuilder's Avatar
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    Airborne Media products

    Has anyone tried or used the Airborne Media Products Aero-Pac scale documentation CDRom?


    Haven't heard anything about them.


    http://www.airbornemedia.com/store/c...cye)/index.htm






    thanks




    TB
    Last edited by TonyBuilder; 07-02-2014 at 11:19 AM.
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  4. #254
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    Quote Originally Posted by TonyBuilder View Post
    Has anyone tried or used the Airborne Media Products Aero-Pac scale documentation CDRom?
    Haven't heard anything about them.
    http://www.airbornemedia.com/store/c...cye)/index.htm
    thanks
    TB
    Try this link: http://www.airbornemedia.com/
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    My bench where you always find the weird and unusual!
    I bought a reusable kit the other day, it came with it's own large black trash bag!

  5. #255
    TonyBuilder's Avatar
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    Zor, Thank you for the drawings, yes they will help. I am going to print out a scale ruder and use that as a template. I need to do some work on the fine too, it is a strait LE for the super chipmunk and that has been throwing me.

    Thanks


    TB
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  6. #256
    TonyBuilder's Avatar
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    Quote Originally Posted by FlyerInOKC View Post
    TB I think the line you drew is too rounded.

    I agree, I just marked it to start getting an idea of the shape. I take the image and blow it up to the right size on my computer screen then I place the ruder next to it. I will print this and go from there. I have a bit of reshaping to do being the ruder is one of the signature looks I need to get it right.


    Click image for larger version. 

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    My ruder is way to big and I will reshape it when I get back to the fuselage.


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    The ruder has changed from the first design and there are a few to chose from so I will find the best fit that matches up with the scheme I am doing and the fine I have to work with. Both these are really small so I will play with this.


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    TB
    Last edited by TonyBuilder; 07-06-2014 at 06:00 AM.
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  7. #257
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    Back from my week off, on the board for today will be finishing the right wing........ after some morning flying




    TB
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  8. #258
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    Airfoil information

    Hi guys,

    This is for information only.
    The Chipmunk is using two airfoils starting at the root with NACA 2415 and ending at the tip with USA 35B.

    The USA 35B is nearly a Clark-Y airfoil.
    The t/c ratio at the root is 14.75% and at the tip is 11.0%.

    The center section incidence is +2 degrees to thrust line.

    I will attempt to attach drawings of these airfoils.

    NOTE ... the USA 35B is a huge pdf file. All anyone has to do is to keep clicking the minus ( - ) icon to bring it to full view on the monitor.

    Zor
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Attached Files Attached Files
    Last edited by Zor; 07-07-2014 at 12:33 AM. Reason: Adding the NOTE

  9. #259
    TonyBuilder's Avatar
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    Todays task is to finish the right wing, or at least bring it up to speed with the left wing. I will be trying a combination of finishes on this build. Vinyl rivets and glue drops along with fasteners, and after paint vinyl fasteners. I have never done either so this will be a learning proses, one reason for doing this build before I get to finishing my P-47!

    So I got a glue drop kit from R/C Scale Products. I got the 1/5th scale rivet templates but they seam big. So I will get some 1/6th templates too. I see different size rivets on the full scale so having both sizes wont hurt.
    1/64 chart tape for panel lines, templates, and dropper bottle.
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    Here is an example of the rivet look I am going for.

    Click image for larger version. 

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    I have zero experience with glue drop rivets so my need some advice on them.


    TB
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  10. #260
    TonyBuilder's Avatar
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    Made good progress on the right wing. Aileron hinges are made, hinge blocks are in, CF hinge shields are in, and the flap pocket is being formed with gorilla glue. Break time till that dries then on to the aileron pocket.

    TB
    Last edited by TonyBuilder; 07-07-2014 at 03:08 PM.
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  11. #261
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    Right Wing

    So the right wing is coming along.


    On making the aileron hinges I came up with a new trick. It is hard to get them all the same size and shape doing them one by one or in pairs. So I used thin CA and hit all the rough ends with CA and made one block out of all 9 pieces. Then I sanded it and when it was good I trimmed the ends and separated the hinges, came out good and was much faster then doing them in pairs of three like the first ones.

    Click image for larger version. 

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    Hinge blocks are in.

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    Hinge pocket shields are in.


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    Gorilla glue added to shame the pocket and to strengthen the shields.

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    I forgot to mask off the area so a little sanding is needed to remove the excess, getting back into the rhythm


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    TB
    Last edited by TonyBuilder; 07-08-2014 at 06:41 AM.
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  12. #262
    TonyBuilder's Avatar
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    On the bench for today will be the aileron pocket. I will also mount my DLE55ra to my Sbach for break in. I need a good 40 flights before I put that engine in the chipmunk.



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  13. #263
    TonyBuilder's Avatar
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    Took me most of the day to get the DLE55 mounted to the Sbach for break in. I also did some long overdue building of transport and building stands from 5/8" birch plywood. Used almost 2/3 of a sheet.

    I am planning on flying this morning so not much work going on in the shop.

    The aileron pocket came out really nice. I tried wetting the area with water first and it really kicks the gorilla glue off. It works much better doing that.

    You can see the flap pocket did nit fill in as well as the aileron, that's cool most of the flap pocket gets sanded and just enough remains to support the shield.

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    Next I will hinge the aileron and flap.


    TB
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  14. #264
    TonyBuilder's Avatar
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    Dle55ra

    I took the DLE out for a first run. I mounted it to my 100 CC PilotRC Sbach. I have it mounted on a 3/4 ply bulk head that is mounted to where the EME120 standoffs are mounted. Setup was easy, I used the same throttle and choke servos and routed nyrod to them. I stuck a 2.5 weight to the top of the fier box and she is good to go. I am flying with no cowl for good cooling and easy access to the engine.
    I primed the engine till I saw fuel to the card, with the choke on it took but 3-4 flips to get the pop, then 3 more flips to start. She ran great right out of the box (DLE's rock). 6400 rpms on a 22x8 Xoar for break in.
    The Bowman ring makes a difference!
    Takeoff was long and gradual, once up she climbed at a good rate. I flew a 10min flight, landed and gave the engine a go over. All looked good. Fuel consumption was about 10oz on a ten min flight. Moderate throttle use.
    Second and third flight was routine, I did bump up to a 15min flight to get more fuel and time on the engine. Fuel consumption on a 15 min average 5000rpm flight was about 18oz. Once the engine is broken in a will do a race track 10min flight at full to determine tank sizing, but it looks like two 14oz tanks will do, I want good reserve.
    Restarts where very DLE like, choke with two or three flips and a pop, then two or three flips and a start.
    the 55 pulled my 27lb Sbach around pretty good so she should do great on a 24-25 lb mores sleek frame.
    Back to building, going to hit it hard tomorrow.
    Last edited by TonyBuilder; 07-10-2014 at 05:20 AM.
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  15. #265
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  16. #266

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    Tony:
    Got a question. I just hooked up the mains on my P-47. They both work and cycle well at 100 psi. However when the air pressure get to 80 psi only one main is cycling. I can hear the uplock disengaging on the retract that does not move and you can place your hand under the tire, then it will extend. What do you think?


    Thanks
    Glenn
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  17. #267

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    Tony:
    Got a question. I just hooked up the mains on my P-47. They both work and cycle well at 100 psi. However when the air pressure get to 80 psi only one main is cycling. I can hear the uplock disengaging on the retract that does not move and you can place your hand under the tire, then it will extend. What do you think?


    Thanks
    Glenn
    When all else fails pull the right stick down!

  18. #268
    TonyBuilder's Avatar
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    Quote Originally Posted by willig10 View Post
    Tony:
    Got a question. I just hooked up the mains on my P-47. They both work and cycle well at 100 psi. However when the air pressure get to 80 psi only one main is cycling. I can hear the uplock disengaging on the retract that does not move and you can place your hand under the tire, then it will extend. What do you think?


    Thanks
    Glenn
    Try loosening the mounting screws and see if this helps. If the mount is warping the gear it will hang up. You are using Robart correct? I don't have experience with Robart but most retracts in general if not mounted completely flat to the gear blocks can bind in motion.


    TB
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  19. #269
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    Zor, thanks for the link



    TB
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  20. #270
    TonyBuilder's Avatar
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    On the board for today will be to hinge the aileron and flap on the right wing, install servos and get it caught up to the left wing.

    I laid up the servo hatch covers last night so I am ready to cut the bays open.

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    TB
    Fly, fly, fly!!!!

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  21. #271
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    Right Wing

    Getting some progress on the right wing.

    I hit the pockets with easy sand to clean them up.

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    They came out great. I will clean up the ends and the joint between the aileron and the flap once I glue in the hinges on the aileron, the flap doesn't get glued in until after painting.


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    Hinges are cut in and I am adjusting them as we go forward.


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    Right now the aileron is getting 20degress of up and 30 degrees of down. The flap is getting 50 degrees. This is the throw before it binds on both. I don't need 50 degrees on the flap.


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    Next I will install the servos and linkages. Then the right wing will almost be caught up to the left. Still need to fit the hatches.




    TB
    Last edited by TonyBuilder; 07-10-2014 at 11:56 AM.
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  22. #272
    FlyerInOKC's Avatar
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    TB I'm a little brain dead today, how did you make your aileron pockets? I was thinking you did it differently then you do on your P-47.
    Last edited by FlyerInOKC; 07-10-2014 at 01:16 PM.
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  23. #273
    TonyBuilder's Avatar
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    OKC, yes I did them differently then the jug. I used gorilla glue. First I warped the aileron/flap with wax paper then I applied glue to the pocket, set the hinge blocks in and taped the aileron/ flap into the pocket. The foaming of the gorilla glue forms the pocket, when dried you just sand the excess, then hit it with a thin coat of easy sand and you got nice clean light hinge pockets.

    The he easy sand will eat the wing core foam but not the gorilla glue foam so be carful on raw foam.


    The the flap pocket will never see the light of day once the flap is glued in but I still like it to be clean.
    The aileron pocket will be visible and have rivets, panel lines and access hatches so it gets the works



    TB
    Last edited by TonyBuilder; 07-10-2014 at 02:35 PM.
    Fly, fly, fly!!!!

    Futaba loyalist!

    ARCA Field, Austin TX

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  24. #274
    FlyerInOKC's Avatar
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    Well stealing inspiration from your builds I was considering making pockets for my TF 182 I'm not crazy about the way the instructions have you do them. I think I'll do some weighing of the systems and pick one.
    Top Flite Brotherhood # 1
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  25. #275
    TonyBuilder's Avatar
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    Right Wing progress


    I am gluing in the aileron hinges.
    First I glue the hinge into the aileron using blocks to get them all at the same plane.


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    Then after that dries I glue the hinge into the wing. This is different then I normally do. I would glass the aileron then install the hinge but this time I want to get the aileron hinged and working before I glass. This way if I need to sand I can do that. It is impossible to know how the hinge is working without gluing the hinges in.

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    The Robart hinges are tight with a dry fit so it is easy to see how they work without gluing them in.
    Once the flap is glassed I will glue the hinge into it and wait till the finishing to glue the hinge/flap into the wing.


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    Onward.




    TB
    Last edited by TonyBuilder; 07-10-2014 at 05:20 PM.
    Fly, fly, fly!!!!

    Futaba loyalist!

    ARCA Field, Austin TX

    http://www.rcuniverse.com/forum/kit-...ary-build.html Angie

    http://www.rcuniverse.com/forum/kit-...ary-build.html Chipmunk

    Cub Brotherhood #238


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