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Thread: Mk.2 XL Build

  1. #1
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    Mk.2 XL Build

    First off I want to send a big thank you to David at FlyingCinema. I contacted him about the possibility of running props bigger then 12 inch on the Tank, he said hang with him and that something is in the works. Before getting the Tank I was about to pull trigger on the Ariel Mod kit for the Disco, but after hearing about all the issues people are having I'm glad I held off.

    The Mk.2 XL consists of a new dirty section with slightly diffrent geometry and 282mm 16mmX2mm CF arms. The arms look bomb proof.

    I got the parts in last night and was able to get a little building done. I will update pics as I go along.

    A big thanks also goes out to Benny_H88 for his step by step, it helps a lot.
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    Last edited by Qbang; 23rd December 2014 at 12:29 PM.

  2. #2
    flyingcinema.com bllama's Avatar
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    Thanks to you and look forward to see this bird in the air!!. I got to say I love those booms, they are super tough. 2mm thick CF is just cool (a little heavy but it will help eliminate a lot of the issues we might have with regular 1mm thick wall tubes).

  3. #3
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    Quick update, I got the top and bottom plates mounted. The wire trick for mounting the bobbins was a life saver. I hope to get started on the wiring this weekend.
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  4. #4
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    Just a quick shot, I should be able to Maiden it New Year's Day! My plan it to get it up in the air and run 5 batts, then install my FPV/LRS gear.
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    Last edited by Qbang; 31st December 2014 at 10:02 AM.

  5. #5
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    Slow progress, but I hope to get it in the air this weekend. This pic is with 14 inch props.
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  7. #7
    flyingcinema.com bllama's Avatar
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    I just tested the XL tank. (FINALLY) 640mm size with 15 x 5.5 carbon props balanced. pros 1750gr aug no fpv gear yet. and 2700mha 6S 35c. (i have an qx gimbal with no camera and no electronics mounted at the front). it hovers for 20min with 10% battery left.
    What I want to do is release the XL plates with the longer tubes 1.5mm to 2mm wall not 100% sure what is best yet. (the XL plates will replace the dirty plates of the MK2. The layout of the motors is a different and it will allow you to spin very large props if you want with 16mm tubes).

  8. #8
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    WOW it's enormous!! Glad you've found my build log helpful, I'm waiting for some weather improvements to give mine a proper test.

    I superglued the side plates on the dirty section the other day, what a difference it made to stiffness. I'd suggest you do the same before the maiden

  9. #9
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    Well it's all ready to fly, now if the weather would just cooperate. I busted out the scale, 1348g as it sits. I have a few different 6s batts to try, 2600mah @ 421g and a 6000mah @ 900g. With one 2600mah batt that will put me at 1770g AUW without FPV gear. About 150g for FPV gear. If the efficiency table holds true I should be able to hover at about 1.5-1.6a per motor. So 6-6.5 amp pull would give me about a 20min hover keeping to my 80% safe rule.
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