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  1. #51
    Thunderbolt47's Avatar
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    RE: 162

    Hey Michelad, The next trip you make to the airport, shoot me a few pics of the main wing fillet. above and below, leading and trailing. Just one side of the plane will be fine.

    Thanks very much,
    Kelly
    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  2. #52
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    RE: 162

    Kelly, thanks for the nice words on my chippy. Yes i have over a dozen flights on it allready, and i really love it. It is a real floater on landings! I hope yours has the same flight characteristics as mine on landings, you'll love it. During my build i googled so many sites on chipmunks i ran our printer out of ink several times! Keep up the great work on yours, and at least we live close enough that i'll probably get to see ya fly it sometime......Gene

    Specs....89" ws DL-50...22-10 prop...18lbs...Dynaflite kit highly modified....covered w Sig Koverall & Minwax polycrylic...Sprayed w latex paint Modeled after Rhodeasian air training group. Thanks for asking...Gene

  3. #53
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    RE: 162

    OK, Here's what I've been up to. Being I forgot to order my 1/4x1/2 stringers, I've been mocking up the upper fuse with balsa stringers. So far everything is lineing up nicely.
    Kelly
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    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  4. #54
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    RE: 162

    Its moveing along nicely. Keep up the great work...Gene

  5. #55
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    RE: 162

    Today I cut out my horizotal stab ribs. I was going to make the whole tail removeable to fit my trailer but, I have a buyer for my old trailer. Now I will be getting a new larger one.

    Now I will put the stab on a wing tube. She got a 57" stab and I have a small shop. If I have to store it in my shop, it will be a lot smaller this way.

    More pics to come!!
    Kelly
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    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  6. #56
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    RE: 162

    OK more progress!
    First I had decided that there wasn't enough formers in the tailend. So I made a few more.

    Every thing is now glued and when unbolted from the table it didn't spring into a banana. So now I'm really happy.[8D]

    I need to order a stab tube tomorrow and hopefully I can get some sheeting on her this weekend.
    Kelly
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    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  7. #57
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    RE: 162

    Is there any good documentation on the Super chipmunks that Art Scholl uses?
    Looking at youtube there seems to be at least two different ones. One is two seated and fixed gear, while another is a single seater with retracts?

    I only have an ARF myself, but I love the way it looks and flies and I wouldn't mind scratch building something instead.
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  8. #58
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    RE: 162

    The top of the fuse is sheeted and i just couldn't resist fliping it over and setting the saddle and wing center on it. Just to check ahead.
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    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  9. #59
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    RE: 162

    Kelly, thats really moveing along nice. I', anxious to see how you make the canopy. It will be a large one!.....Gene

  10. #60
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    RE: 162

    Well tonite I finally got up the nerve to glue the horizontal stabs together. Still much to do to them. They were not as bad a job as I thought they would be. I pulled the tape on them and they are off only 1/8" with the fuse. I'll take that. These were built mostly off the table. Besides I can still twist them a little before adding the sheeting.

    Next will be the bottom of the fuse and then the rudder.

    Kelly
    BTW there is a 36" ruler lying in the center for size. The counterbalances still have to be added.
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    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  11. #61
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    RE: 162

    I did a little test fitting tonight to see how everything was working out. It all lined up great. I was surprised[8D] She really growing in size now.

    I need to order some more wood before I go much further. I do have a few things to keep me busy for a few weeks without the order. I'll work till my current stock is gone, which won't be long.

    Later,
    Kelly
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    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  12. #62
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    RE: 162

    just one question, well a few LOL
    where did you get your plan size increased .? and how did they do it. was it printed out on one sheet.?
    i aways wondered what the process can you explain it for me
    thanks
    www.flyingaeros.com

  13. #63
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    RE: 162


    ORIGINAL: emilsanto

    just one question, well a few LOL
    *where did you get your plan size increased .? and how did they do it. was it printed out on one sheet.?
    i aways wondered what the process can you explain it for me
    thanks

    I had the plans doubled in size. All of the printers I found would only print a 36" wide sheet. (The original size plans were also 36") So, First I folded the plans in half ( or you can cut them in half) and ran it threw the scanner. Then print out the new size. Do both sides. I started with 3 sheet and ended with 6. (Double lol) I found OfficeMax had the best machine.(and there employee wasn't an idiot) It can handle paper as long as you need. Kinko's couldn't even figure out what I wanted to do. also there machine could only do a 120" long sheet. Plus they costed more than OfficeMax.
    To double the size, you enlarge it by 200%


    Hope this helps,
    Kelly
    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  14. #64

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    RE: 162


    ORIGINAL: Thunderbolt47


    ORIGINAL: emilsanto

    just one question, well a few LOL
    *where did you get your plan size increased .? and how did they do it. was it printed out on one sheet.?
    i aways wondered what the process can you explain it for me
    thanks

    I had the plans doubled in size. All of the printers I found would only print a 36'' wide sheet. (The original size plans were also 36'') So, First I folded the plans in half ( or you can cut them in half) and ran it threw the scanner. Then print out the new size. Do both sides. I started with 3 sheet and ended with 6. (Double lol) I found OfficeMax had the best machine.(and there employee wasn't an idiot) It can handle paper as long as you need. Kinko's couldn't even figure out what I wanted to do. also there machine could only do a 120'' long sheet. Plus they costed more than OfficeMax.
    To double the size, you enlarge it by 200%


    Hope this helps,
    Kelly
    I've doubled plans sizes before as well and I recommend that when you fold the plans, leave a little more than half the plan showing (maybe 2" more) to allow you to overlap the two halves after scanning. I use gimp (www.gimp.org) for the image processing - it's an open source program that does nearly everything that Photoshop does, but for free!
    Gunderson Aero Design
    Laser Edge Cutters

  15. #65
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    RE: 162

    I have a question. In pic#1, would it be worth the estimated 8 to 10ozs of weight to cut them out. would the wing saddle still be strong enough?

    Pix #2 and 3 are of the wing hold down plate. what do you guys think? It will have two more 1/4 ply plates laminated together for the threads/ inserts and of coarse tri stock gusset. no glue yet.

    Kelly
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    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  16. #66
    All Day Dan's Avatar
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    RE: 162

    Kelly,
    The few ounces of weight savings is not worth it for a plane the size that you are building. I would rather have the extra strength for those inevitable bad landings we all have every now and then. Dan.
    Dan

  17. #67

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    RE: 162

    All those cut outs add up over the coarse of the build. If it were mine I would cut them out. Have you seen todays planes their is almost no wood to them at all and they hold together. Im no expert and I sure don't guarantee my advice. I'm just saying what I would do. I really am enjoying this build. Takes alot of paitence to cut your own kit out.

  18. #68
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    RE: 162

    i would also cut them out . you dont want a flying tank.
    you are useing a dle 30. correct you need to save weight for sure in the tail section
    www.flyingaeros.com

  19. #69
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    RE: 162

    Thanks for the replys guys, I have been adding up a total of wood removed from this build. So far I have saved about 7 to 8 lbs. So a 8 to 10 ozs saving wouldn't make or break a plane of this size. however every ounce adds up. It's not realistic to think I could ever get this one under the 55lbs weight, but I don't think it will be much more than that.


    "You will never know how much you overbuilt something, but you will know when it wasn't strong enough"

    Still thinking,
    Kelly

    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  20. #70
    Thunderbolt47's Avatar
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    RE: 162


    ORIGINAL: emilsanto

    i would also cut them out . you dont want a flying tank.
    you are useing a dle 30. correct you need to save weight for sure in the tail section
    Think bigger!!
    I haven't decided on an engine yet, but the main contestants are at a minimum. DA150 (used/ cheapest route) or a DLE 170, and maybe a DLE 222. The DLE 170 is winning right now.
    Kelly
    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  21. #71
    Thunderbolt47's Avatar
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    RE: 162

    ORIGINAL: rgunder


    ORIGINAL: Thunderbolt47


    ORIGINAL: emilsanto

    just one question, well a few LOL
    *where did you get your plan size increased .? and how did they do it. was it printed out on one sheet.?
    i aways wondered what the process can you explain it for me
    thanks

    I had the plans doubled in size. All of the printers I found would only print a 36'' wide sheet. (The original size plans were also 36'') So, First I folded the plans in half ( or you can cut them in half) and ran it threw the scanner. Then print out the new size. Do both sides. I started with 3 sheet and ended with 6. (Double lol) I found OfficeMax had the best machine.(and there employee wasn't an idiot) It can handle paper as long as you need. Kinko's couldn't even figure out what I wanted to do. also there machine could only do a 120'' long sheet. Plus they costed more than OfficeMax.
    To double the size, you enlarge it by 200%


    Hope this helps,
    Kelly
    I've doubled plans sizes before as well and I recommend that when you fold the plans, leave a little more than half the plan showing (maybe 2'' more) to allow you to overlap the two halves after scanning. I use gimp (www.gimp.org) for the image processing - it's an open source program that does nearly everything that Photoshop does, but for free!
    I notice this. I had a few gaps in my plans. Luckly it wasn't a problem. I was able to fill in the blanks. I will keep this in mind the next time. (if there is a next time)

    I really didn't used the fuse plans much. Because of the "scale" mods I did to the fuse it almost made the plans useless. F-1 and 2 are the only ones that are still "by the plans" The flat sides on the rear had to GO. I just couldn't see a plane this large looking that bad.

    Still having fun though!!
    Kelly
    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  22. #72

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    RE: 162

    There's always a next time especially with this hobby

  23. #73
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    RE: 162

    Ok I've made my choice. I only drilled a few holes to clamp tru. I didn't feel like the less weight was worth the risk. It is now glued and it all checks out square. I'm happy[8D]
    Kelly
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    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  24. #74
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    RE: 162

    Still moving right along. I have the wing bolted down and the formers made for the bottom fuse half. However I'm needing to order wood agian.
    Kelly
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    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.

  25. #75
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    RE: 162

    After a few weeks off of getting my Mustang preped for the new season I have the Chippy back on the table.

    I am finnally to the part I've been worried about. I've scratched a bald spot on my head working the rudder and stab out.

    Right now the Vetical stab is glued in and ready for sheeting.

    The rudder is just clamped together for testing. Because of the hidden linkage, I decided to use pocket hinges. This is where the head scratching came in. I used some brass tubes to extend the robart hinge to the pivot point.
    I tested a 1.5" tube with a hinge glued into a block of wood. I destroyed the hinge trying to get it to fail.

    The Horizontal stab shown in the last pic is 57" wide

    Kelly
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    Greg Norman said, \"Happiness is a long walk with a putter.\" Obviously he never flew a P-51 Mustang.


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