RE: New H-9 Sukhoi set up  
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    • All Forums >> RC Airplanes >> Giant Scale Aircraft - 3D & Aerobatic >> RE: New H-9 Sukhoi set up
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    RE: New H-9 Sukhoi set up - 9/23/2004 4:05:52 AM   
    CHM



    Posts: 601
    Joined: 2/22/2002
    From: Alexandria, MN, USA
    Status: offline     		I finally weighed my Suk. 23 pounds 10 ounces with a +/- 2 oz. digital scale. I'm happy with that! That's RTF but without the four 4-40 hatch screws or the graphics. The only anti-weight steps I took were drilling a bunch of holes in the tail section, and basically just careful assembly technique- trying not to add anything unneeded. I'll post pics as soon as the graphics get here.

    The only thing I'm not liking is one of the elevator servos (8411) does the "crappie flop". It gives the non-digital guys something to worry about.

    The Hitec 5735 on the rudder is a horse. My Sukhoi does really nice knife edge loops! The JR 8231's on the ailerons are perfect in my opinion on this bird and if I had it to do over again I'd try 8611's or Hitec digitals on the elevators.

    Chuck

    _____________________________

    "I'd like one large Yak to go. Could you supersize that for me please?"

    (in reply to Robotech)
           Post #: 426

    RE: New H-9 Sukhoi set up - 9/23/2004 4:18:06 AM   
    Ryans Rebel


     

    Posts: 1171
    Joined: 7/6/2002
    From: St. Martinville, LA, USA
    Status: offline     		I weighed mine too. 23 lbs 4 oz! Everything stock, except for the main gear, which is carbon fiber. My scale is adequate I think but could probable use a calibration. What scales are you guys using? What about the digital 50 lb fish scale avaliable a Wal-Mart?

    Ryan

    (in reply to CHM)
           Post #: 427

    RE: New H-9 Sukhoi set up - 9/23/2004 1:57:16 PM   
    CHM



    Posts: 601
    Joined: 2/22/2002
    From: Alexandria, MN, USA
    Status: offline     		I'm using a STREN brand 50 pound digital fishing scale that claims to be accurate to within two ounces. It measured battery packs, engines and mufflers to within a half ounce of the manufacturers listed weights. I checked it once with a 10 pound weight that I had checked on another digital scale and it was right on at that weight. I really don't care if it's off 3 or 4 ounces even. I would have been upset if it said 26 pounds though! Now I feel better about purchasing a smoke system

    Chuck

    _____________________________

    "I'd like one large Yak to go. Could you supersize that for me please?"

    (in reply to Ryans Rebel)
           Post #: 428

    RE: New H-9 Sukhoi set up - 9/23/2004 9:17:35 PM   
    3-D Flyer



    Posts: 448
    Joined: 4/10/2003
    From: Tinley Park, IL, USA
    Status: offline     		Hey Guys.... still waiting to get mine in the air . Yesterday brought her out and had some throttle linkage problems,(could not bring the idol low enough) Took her home and corrected the problem, got it out in my yard to check it out and the zdz 80 twin ran great, however after adjusting the idol my elevators were flapping pretty hard and before i knew it i had a Hitec Digital 5645mg stripped out searching for center! I can not believe it stripped a metal gear! (yes everything is balanced) i am spinning a 24x10 mejlick prop and a dave brown spinner all factory drilled. The only thing i can blame this on (I HOPE!) is the fact that it was sitting on the concrete patio and the wings were not on. Am i correct in the fact that this will put a tremendous amount of undo vibration on the surfaces? But still i can not believe it took out the metal gear! I ordered a replacement gear set i hope to have by tomorrow, if so i'll go for the maiden this weekend. I hope to take this as a lesson learned, run it in the grass with the wings on!!! I know Hitec would warranty this but i do not feel like waiting a month for the turnaround! All this after i have just waited for 2 weeks to install 2 new warrantied servos(Hitec 5645mg's) in the right wing panel after our first maiden attempt. After setting up and checking everything out the right aileron went up then dropped and cooked itself!!! This also took out the second servo from the drag!! I am so dissapointed! My aeroworks Edge has these servos all the way around as well and after about 15 flights all is well so far, but after all these issues on the sukhoi i can not help but be paranoid!!! Hitec was real good about the warranty on the burned out servos.... it actually blew a hole out the side of the case!!! . I just hope i did not get a bad batch of these things! Or they are about tho cost me a $2500.00 airplane!!! Was that strip out my fault?? or do you guys think it should take more vibration?? Thanks all! Glad to hear yours are flying so well! Later.

    (in reply to CHM)
           Post #: 429

    RE: New H-9 Sukhoi set up - 9/23/2004 9:28:37 PM   
    CHM



    Posts: 601
    Joined: 2/22/2002
    From: Alexandria, MN, USA
    Status: offline     		I believe you found your problem. Never run a big gasser without the wings on!!! I'd bet money that ruined your servo.

    Chuck

    _____________________________

    "I'd like one large Yak to go. Could you supersize that for me please?"

    (in reply to 3-D Flyer)
           Post #: 430

    RE: New H-9 Sukhoi set up - 9/23/2004 9:30:41 PM   
    TailTouch



    Posts: 557
    Joined: 1/4/2002
    From: Orlando, FL, USA
    Status: offline     		Running the engine without the wings bolted on WILL cause a lot of undue vibration, especially if it occurs at the resonating frequency.
    The wings tend to dampen the vibration.

    Glad the servo quit on the ground and not in the air

    (in reply to 3-D Flyer)
           Post #: 431

    RE: New H-9 Sukhoi set up - 9/23/2004 9:44:14 PM   
    LeeL



    Posts: 336
    Joined: 10/26/2002
    From: Austin, TX, USA
    Status: offline     		Since you have found out you have some damaged servos I would strongly recommend that you go over the entire frame of the plane to make sure none of the glue joints vibrated loose, running a big gasser without the wings on it is a sure fire way to find out how good a job the builder did.

    _____________________________

    Lee
    www.aeroworldrc.com

    (in reply to TailTouch)
           Post #: 432

    RE: New H-9 Sukhoi set up - 9/23/2004 11:32:10 PM   
    CHM



    Posts: 601
    Joined: 2/22/2002
    From: Alexandria, MN, USA
    Status: offline     		I agree with Lee. I'd also look at all the metal servo gears.

    I picked up my graphics today. Sweet! Do most of you use the dry application method or do you use some windex?

    Chuck

    _____________________________

    "I'd like one large Yak to go. Could you supersize that for me please?"

    (in reply to LeeL)
           Post #: 433

    RE: New H-9 Sukhoi set up - 9/24/2004 1:53:59 AM   
    SLINGSHOT-RCU



    Posts: 690
    Joined: 2/11/2003
    From: Timmonsville, SC, USA
    Status: offline
    quote:

    ORIGINAL: Ryans Rebel

    Any of you guys using the Futaba R138DP 8-channel PCM receiver? Any reason I should not? I assume it can handle 8 servos.

    Ryan

    Thats what i ran in mine works great.


    _____________________________

    EDDIE

    (in reply to Ryans Rebel)
           Post #: 434

    RE: New H-9 Sukhoi set up - 9/24/2004 2:42:00 AM   
    3-D Flyer



    Posts: 448
    Joined: 4/10/2003
    From: Tinley Park, IL, USA
    Status: offline     		Went over everything this evening, all looks o.k. just waiting for the new gears to come in, hopefully tomorrow. Can not wait to fly this thing! Thanks all! Dave.

    (in reply to SLINGSHOT-RCU)
           Post #: 435

    RE: New H-9 Sukhoi set up - 9/24/2004 3:25:18 AM   
    Ryans Rebel


     

    Posts: 1171
    Joined: 7/6/2002
    From: St. Martinville, LA, USA
    Status: offline     		Slingshot, Got one one the way! Thanks.

    (in reply to 3-D Flyer)
           Post #: 436

    RE: New H-9 Sukhoi set up - 9/24/2004 2:43:19 PM   
    3-D Flyer



    Posts: 448
    Joined: 4/10/2003
    From: Tinley Park, IL, USA
    Status: offline     		Hey Lee, if i recall correctly didn't you use the 5645mg's as well? How are yours holding up on this airframe? any problems all the way up untill now? Just looking for the reasurance of having those on my plane! I am so paranoid now!! Thanks, Dave.

    (in reply to LeeL)
           Post #: 437

    RE: New H-9 Sukhoi set up - 9/24/2004 2:46:51 PM   
    Robotech



    Posts: 1151
    Joined: 1/17/2002
    From: Pine Bluff, AR,
    Status: offline     		Flew the Suki yesterday after the GT80 - BME 102 transplant and all I can say is " Holy &^#@, Batman! "

    (in reply to Ryans Rebel)
           Post #: 438

    RE: New H-9 Sukhoi set up - 9/24/2004 2:52:52 PM   
    CHM



    Posts: 601
    Joined: 2/22/2002
    From: Alexandria, MN, USA
    Status: offline     		I have a 102 in mine too! I had trouble trying not to climb in hover! Mine weighs under 24 pounds.

    Chuck

    _____________________________

    "I'd like one large Yak to go. Could you supersize that for me please?"

    (in reply to Robotech)
           Post #: 439

    RE: New H-9 Sukhoi set up - 9/27/2004 1:55:32 AM   
    CHM



    Posts: 601
    Joined: 2/22/2002
    From: Alexandria, MN, USA
    Status: offline     		Finally got my graphics on. The bad news is that my ignition is acting up again and I'm running on one cylinder at times.

    Chuck

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    _____________________________

    "I'd like one large Yak to go. Could you supersize that for me please?"

    (in reply to CHM)
           Post #: 440

    RE: New H-9 Sukhoi set up - 9/27/2004 4:44:54 AM   
    Ryans Rebel


     

    Posts: 1171
    Joined: 7/6/2002
    From: St. Martinville, LA, USA
    Status: offline     		ZDZ 80RV just quit on me in a hover about 10' off the deck. It fell gear down and broke both the main & tail gear. Amazing: no other damage! Anyway, I checked the clunk: good, checked the battery, good. Anyone one else having trouble with the engine quiting in a hover? The Sukhoi is on the 3rd gallon and the 14th flight. Overheating maybe? Haven't tried to restart it yet.

    Ryan

    (in reply to CHM)
           Post #: 441