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  1. #901

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    If it's not too windy on Wednesday (June 11), I'm taking the TBM Zeke out to the field to test the new carb Desert Aircraft sent me for the DA-85. Been wanting to test fly since last Nov, but just have not had it work out. Tomorrow might be the day. If the new carb does the trick, I will be plum crazy over flying the Zeke.

    Wed, June 11.

    I took the Zeke out today and started her up. As always ran fine on the ground. But, once airborne, started banging and popping like mad. She had plenty of power, but was either too rich or too lean. I will take her out again, and try turning the high-end needle valve in one blade width, fly, and if still banging, turn it in once more, etc, till she either starts running right or quits. Then, will go the other way with the needle valve, richer, until she runs right or dies. Really driving me crazy. Plane flies great other than that.
    Last edited by LBJ; 06-11-2014 at 08:25 PM.

  2. #902

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    Apr 2003
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    Have put several flights on my green zero so far this year. Last flight was taxing back quite slowly and the tail popped up and she flipped over. Cracked the canopy but no other damage. Used clear tape to fix that. I have noticed that on takeoff she really wants to tip over as I accelerate and I really need to manage the elevator.. Landings as well. Also when taxing the tail bounces quite a bit. Our field is grass and fairly smooth. Anyone else having this happen?

    Thought I might be nose heavy and this might be part of the problem. CG is 1.5" forward of the front spar edge. That is measured were the inner section joins the outer panels. Last flight pulled the nose up to about thirty degrees and rolled inverted. With neutral elevator nose drops but not really fast. To fly inverted takes a decent amount of elevator. But seems in the normal range. I thought in an earlier post that someone has the CG back at the spar. Have to go back and check that out. So anyone with any thoughts or help would like to hear from you.

    Thanks,

    John

  3. #903

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    Sep 2008
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    Mine balances exactly on the main spar at the wing joiner section. It still requires quite a bit of push to maintain level inverted flight. I think you can move your CG rearward if you want to. It also has a tendency to nose over during take off. It seems like when I advance the throttle the tail comes up quickly and wants to keep going up forcing the nose over, if that makes sense. What I did was put in some up trim for when the gear is down, but when the gear is retracted, the up trim is eliminated enough so the plane flies level during flight. My Zero also wanted to climb dramaticallly when the throttle was advanced. So what I did to combat that was to program a mix of down elevator with throttle which is working quite well, but again the mix is turned off when the gear is down because of the nose over problem on takeoff. Hope this helps.
    Al

  4. #904

    Join Date
    Oct 2007
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    Hi Guys,

    I just thought I'd post a pic and quick vid of my Zero, it was the white one out of the box but I fancied a kit bash. This thread has been a great read while building.



    First flight saw some engine problems (too lean and a very hot day, now sorted). She's running sierras, XYZ53cc twin, 22x8 menz, standard tailwheel unit modded to electric, 5 piece gear doors as per fullsize, DB cockpit, 34lbs AUW. Flys well now :-)

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    Cheers
    Mat

  5. #905
    Fly2XS's Avatar
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    I love your sound track! Is that some new-age band? ;^)

    Quote Originally Posted by mudflap31 View Post
    Hi Guys,

    I just thought I'd post a pic and quick vid of my Zero, it was the white one out of the box but I fancied a kit bash. This thread has been a great read while building.



    First flight saw some engine problems (too lean and a very hot day, now sorted). She's running sierras, XYZ53cc twin, 22x8 menz, standard tailwheel unit modded to electric, 5 piece gear doors as per fullsize, DB cockpit, 34lbs AUW. Flys well now :-)

    Click image for larger version. 

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    Cheers
    Mat
    Scott: AMA L628, RCCA #108
    F4U 'Corsair' Brotherhood #49
    P-40 'Warhawk' Brotherhood #103
    P-47 'Jug' Brotherhood #124

  6. #906

    Join Date
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    Lol yep, the digi chorus!

    Mat

  7. #907

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    Jun 2008
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    One of my fellow RC Club members is offering his TBM Zero on RCU. Here's the link. It's going to be a local sale and PU only, so keep that in mind. I don't think he's flown this one, but bought it from the guy who originally owned and assembled it. DA-84 for power.

    http://www.rcuniverse.com/market/item.cfm?itemId=988414

  8. #908

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    Lane,
    You should jump on that one. You need a green and a white one! How's yours been flying? Did you get the engine problem worked out? Mine is flying great!

  9. #909

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    Al. I just dropped over $4K on the ESM Corsair with the Saito FG-84 radial engine. So, guess I'll have to see it go bye-bye to a guy with deeper pockets!

    No on the TBM Zero. She flies, but still bangs and pops once airborne. I have decided to fly her anyway as she's a joy to fly other than the engine problem. Either she will fly fine or she will die trying! haha.

  10. #910

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    Sounds like an awesome combo with the saito and the corsair. Best of luck with it. I saw the thread on the Corsair. Will be following to see how the maiden turns out. As you probably know, the corsair won't float like the Zero. Fellow member has one with DLE 55. Flies beautifully, but landing is a little more tricky than the Zero I think.

  11. #911

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    Yes, the Corsair will have a wing loading of 50 oz per sq ft. Yikes! That wing is only 1500+ square inches and she's 34 pounds. Not a floater. But, with full flaps should land well. Maiden flights are where that fun begins! I am waiting for a decent day to do that deed.


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