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  1. #126

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    RE: 40% 260 on a Diet

    Is that bondo you used around the vertical fin fairing ?

    Albert
    Carden Aircraft
    Team JR

  2. #127

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    RE: 40% 260 on a Diet

    ORIGINAL: as722

    Is that bondo you used around the vertical fin fairing ?

    Albert

    No Albert its not bondo, its like mud that you put on drywall, except it the lite stuff. Home Depot sells it..... I'll look up the name later and let you know.....



    (Lite Spackle found at Home Depot)

  3. #128

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    RE: 40% 260 on a Diet

    This is an awsome build....keep us posted!

  4. #129
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    RE: 40% 260 on a Diet

    Hey George, do you have any more pictures of what you guys did to lighten up the wings and stabs? What did you use to pattern out the drill holes on the stabs?

    Roger

  5. #130

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    RE: 40% 260 on a Diet

    Roger,

    The wings have not been done as of yet. The stabs pattern were drawn (laid up) on the foam and then cut (drilled) out. There was no pre defined pattern...

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  6. #131

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    RE: 40% 260 on a Diet

    8 lbs 7 oz as she sits in this photo....


    Cowl
    Canopy
    Landing Gear (Main and Tail)
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  7. #132

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    RE: 40% 260 on a Diet

    DA 100 installation tonight.......... Notice the weight of the bolts and the 2.5 deg right thrust in the mount...

    Needless to say the aluminum bolts were used to mount the engine....

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  8. #133

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    RE: 40% 260 on a Diet

    This is a learning experience for me, great work, keep us informed.
    My Carden 260 is at 39.3 lbs and it flyes like a dream with a DA 150.

    Happy flying
    George

  9. #134

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    RE: 40% 260 on a Diet

    260 man,

    If it doesn't balance and or doesn't have enough power with the 100 will it be strong enough for a 150 ?

    Thanks
    Albert
    Carden Aircraft
    Team JR

  10. #135

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    RE: 40% 260 on a Diet

    260 Man,
    Could you tell me where to pick up the aluminum mounting bolts.
    Thanks

    PS really enjoying the build thread.

  11. #136

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    RE: 40% 260 on a Diet


    ORIGINAL: as722

    260 man,

    If it doesn't balance and or doesn't have enough power with the 100 will it be strong enough for a 150 ?

    Thanks
    Albert
    Yep, but it will fly just fine on the 100..............

  12. #137

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    RE: 40% 260 on a Diet


    ORIGINAL: sailing1

    260 Man,
    Could you tell me where to pick up the aluminum mounting bolts.
    Thanks

    PS really enjoying the build thread.

    Aluminum Fasteners supply Inc

    239-643-4551

    PN 1448HHB205 (2024-T4)

  13. #138

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    RE: 40% 260 on a Diet

    On its wheels with motor in and spinner, prop, ignition, throttle servo all installed it sits at 16 lbs 6.4 oz..........Kavan Tires, Titanium Axles

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  14. #139
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    RE: 40% 260 on a Diet

    Hello Albert

    The C/G as it sits now with power plant, prop and spinner installed is @ 2.5" behind former 2, this means I will probably be placing some of the radio gear behind the C/G to get it balanced.
    Fly It Like You Stole It!!!

  15. #140
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    RE: 40% 260 on a Diet


    ORIGINAL: 260 Man

    Roger,

    The wings have not been done as of yet. The stabs pattern were drawn (laid up) on the foam and then cut (drilled) out. There was no pre defined pattern...


    Thanks George, looking forward to seeing what you guys do with the wings.

    Stay warm!

  16. #141
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    RE: 40% 260 on a Diet

    I guess what we did not consider is that fat that you would have to mount the 100 urther forward because of a shorer crank.. therefore, more engine weight further forward to help compensate for the small engine.

    Good for you guys...

    Talk to you later!!


    Chuck
    Mark Hunt Designs

  17. #142

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    RE: 40% 260 on a Diet

    George - do you worry about the aluminum mount bolts galling in the steel nuts? I've been thinking of using titanium bolts for this application basically to eliminate the possibility of them galling (and then not being removable!). Obviously, if I could use aluminum, I would from both a cost and weight standpoint. Thoughts?

    Thanks!
    Ken

  18. #143
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    RE: 40% 260 on a Diet

    Aluminum to aluminum usually locks up unless you use anti seize lubricant generally used in full scale applications. Aluminum to steel with silicone won't pose as a problem.

    Bob Sawyer
    Fly It Like You Stole It!!!

  19. #144

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    RE: 40% 260 on a Diet

    2.5" behind F-2 is 1/4" in front of the leading edge of the wing. I'm assuming you meant F-3, if so 2.5" behind F-3 would be 1 7/8" in front of the recomended CG which is way nose heavy. If you are balancing 2.5 behind F-2 you'll probably be placing all of the radio gear and the kitchen sink behind of the recomended CG.

    Albert
    ORIGINAL: sensei

    Hello Albert

    The C/G as it sits now with power plant, prop and spinner installed is @ 2.5" behind former 2, this means I will probably be placing some of the radio gear behind the C/G to get it balanced.
    Carden Aircraft
    Team JR

  20. #145
    sensei's Avatar
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    RE: 40% 260 on a Diet

    No, like I said, 2.5" behind F2 where the cowling meets the fuse, also with the 4 servos in the tail and the horizontal stab in place, along with batteries behind the canopy this will be a stroll in the park.

    Bob Sawyer
    Fly It Like You Stole It!!!

  21. #146

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    RE: 40% 260 on a Diet

    this is awsome, i havent been on RCU in a while and this is the kind of stuff that gets my blood running all over again. awsome job man!

  22. #147

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    RE: 40% 260 on a Diet

    Yeah, ok !
    ORIGINAL: sensei

    No, like I said, 2.5" behind F2 where the cowling meets the fuse, also with the 4 servos in the tail and the horizontal stab in place, along with batteries behind the canopy this will be a stroll in the park.

    Bob Sawyer
    Carden Aircraft
    Team JR

  23. #148
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    RE: 40% 260 on a Diet

    Albert,

    The recommended C/G is 11.3" behind F2 and this thing balances at 2.5" behind F2 equaling 8.8" in front of the C/G as it sits Ok, there is 1 LB 12 ozs. in tail feathers, servos and hardware at 60" behind the C/G; moving the C/G aft about 8.00" Because of the project target weight and power plant choice, the aft portion of the fuse had to be fabricated very light or the recommended C/G would have been unattainable without led in the nose; killing the target weight in the first place. Remember that 60" arm is very sensitive to the C/G.

    Bob
    Fly It Like You Stole It!!!

  24. #149
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    RE: 40% 260 on a Diet

    Just a prediction here, i bet we will find out as progress is made, i just dont understand why people cant help to keep the b.s. comments to themselves about ow it wont work or it gonna blow u or whatever. Let the man build, let the man fly, if it fails, you will have your turn to say i told you so...

    BUT... if it flys great, makes weight, balances where it should, i bet no one has the balls to admit they were wrong.

    Bob, wish it wasnt so cold, i know the garage has got to be freezing right now, not good to build in



    To sunny skies and warmer weather, i anticipate the rest of your build.


    Chuckles
    Mark Hunt Designs

  25. #150

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    RE: 40% 260 on a Diet

    So are you saying that you put the whole airplane together, wings, stabs etc. and it balances at 2.5" behind F-2 or are you saying that your fuse balances at 2.5" behind F-2 ?

    Albert
    ORIGINAL: sensei

    Albert,

    The recommended C/G is 11.3" behind F2 and this thing balances at 2.5" behind F2 equaling 8.8" in front of the C/G as it sits Ok, there is 1 LB 12 ozs. in tail feathers, servos and hardware at 60" behind the C/G; moving the C/G aft about 8.00" Because of the project target weight and power plant choice, the aft portion of the fuse had to be fabricated very light or the recommended C/G would have been unattainable without led in the nose; killing the target weight in the first place. Remember that 60" arm is very sensitive to the C/G.

    Bob
    Carden Aircraft
    Team JR


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