RE: YAK 54 TOC1  
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    • All Forums >> RC Airplanes >> Giant Scale Aircraft - 3D & Aerobatic >> RE: YAK 54 TOC1
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    RE: YAK 54 TOC1 - 6/15/2008 7:26:04 AM   
    tuavp


     

    Posts: 47
    Joined: 7/23/2003
    From: Ankara, TURKEY
    Status: offline     		My DA50 started this 6-7 galon after. There is a CF plate on the carb, it shouldnt be the difference of airflow, are you sure it may solve the problem if I richen the low end??? and one more thing there are 2 red screws on the carb, ı found that 2 of them are not tight, now I have tightened them so lets see what will happen??? I will inform...

    (in reply to whitedog4491)
           Post #: 4301

    RE: YAK 54 TOC1 - 6/15/2008 2:35:30 PM   
    LearnedInUk



    Posts: 294
    Joined: 7/1/2005
    From: Huntingtown, MD, USA
    Status: online     		Check for dirt in the carb or filter. I had the EXACT same problem. and found dirt/crud was the problem. Cleaned it out and it flew fine, of course we figured thisout after messing with the needles and three deadsticks in a row.

    This plane lands like a trainer. Deadsticks are fun!

    (in reply to tuavp)
           Post #: 4302

    RE: YAK 54 TOC1 - 6/15/2008 3:22:12 PM   
    Panzlflyer



    Posts: 1940
    Joined: 2/28/2002
    From: Goldsboro, NC, USA
    Status: offline     		The last few I have dealt with had all run too hot with poor cooling and to lean mixes, I think it softenes the carb block and in the ones I looked at had allowed the gasket to pull in which again made it worse because that leaned it still more due to air leaking in.
    Be carefull about how tight you crank the carb bolts, the plastic block deforms easily.
    Not saying you leaned it but poor cooling is a common problem on Yaks because of the cowl (happened to me as well).
    As long as it transitions then a little burble is fine, dont know why eveyone is obsessed with trying to get rid of it.

    (in reply to LearnedInUk)
           Post #: 4303

    RE: YAK 54 TOC1 - 6/15/2008 3:42:43 PM   
    Panzlflyer



    Posts: 1940
    Joined: 2/28/2002
    From: Goldsboro, NC, USA
    Status: offline     		The carb mod is basically taking off the carb plate that covers the diaphram soldering the hole shut, re drilling a new one in the middle and soldering on a fuel nipple fitting, make sure its smooth on the inside and then attach tubing to it and route into the fuselage so the carb sees a steady pressure instead of a very unstable flow inside the cowl...again it comes back to what cowl you have/baffles/air exit and other airflow issues.
    On the DA 100 most need the carb plate because the hole is directly in the air blast on the Yak, didnt need one on an extra

    (in reply to Panzlflyer)
           Post #: 4304

    RE: YAK 54 TOC1 - 6/16/2008 8:34:53 PM   
    turd1


     

    Posts: 23
    Joined: 5/18/2008
    From: Hatfield, MA, USA
    Status: offline     		Ha my brison 3.2 runs good and has a lot of power but in a hover it wont pull up. I don't have to hover it at full power. It has a 22/8 what other props should I try to get it to pull out better.


    thanks

    (in reply to Panzlflyer)
           Post #: 4305

    RE: YAK 54 TOC1 - 6/17/2008 3:02:47 PM   
    Panzlflyer



    Posts: 1940
    Joined: 2/28/2002
    From: Goldsboro, NC, USA
    Status: offline     		Vess 23a

    (in reply to turd1)
           Post #: 4306

    RE: YAK 54 TOC1 - 6/18/2008 2:32:06 AM   
    turd1


     

    Posts: 23
    Joined: 5/18/2008
    From: Hatfield, MA, USA
    Status: offline     		Ha doesn't the vess b have more pole out

    (in reply to Panzlflyer)
           Post #: 4307

    RE: YAK 54 TOC1 - 6/18/2008 2:49:27 AM   
    rcbill


     

    Posts: 449
    Joined: 2/13/2003
    From: pleasant prairie, WI, USA
    Status: offline     		I had the 23a on my Brillelli 60cc and I thought the NX 22x8 had a better pullout and the 23a was slow. The 23a did brake on downlines better though. If you're going with the Vess I would think the 23b might be better but I don't know if your engine can spin it. I also use the same NX on my DA50. If you haven't tried the NX you might want to give it a shot..... Bill

    (in reply to turd1)
           Post #: 4308

    RE: YAK 54 TOC1 - 6/18/2008 8:04:12 PM   
    turd1


     

    Posts: 23
    Joined: 5/18/2008
    From: Hatfield, MA, USA
    Status: offline     		Thanks, do you think that the 22/b would be the best combo.....Dean

    (in reply to rcbill)
           Post #: 4309

    RE: YAK 54 TOC1 - 6/18/2008 9:36:08 PM   
    rcbill


     

    Posts: 449
    Joined: 2/13/2003
    From: pleasant prairie, WI, USA
    Status: offline     		Well I don't think you mentioned what prop you are running right now. I haven't run the 22b so I couldn't say for sure. There may be better props out there but with the 3.2 I don't see how you can get much better than the NX 22x8. I know some guys love the Xoar etc. but for me I liked the NX best all around so far. I tached it on my FPE 3.2 last year at 6800 but the ignition died on me before I had a chance to get it orr the ground. I'm running the NX on my Brillelli and my DA. Both planes come very close to 18 pounds..... Bill

    (in reply to turd1)
           Post #: 4310

    RE: YAK 54 TOC1 - 6/19/2008 3:42:26 AM   
    turd1


     

    Posts: 23
    Joined: 5/18/2008
    From: Hatfield, MA, USA
    Status: offline     		I am running a 22/8 wright now. Does the NX props have a wepsite. My plane is 17.5 pounds. Do you have a yak 54 my seems to fly with the tale down. It is a little tale hevy for 3D but I first tried it a little nose hevy and it flew the same way....Dean

    (in reply to rcbill)
           Post #: 4311

    RE: YAK 54 TOC1 - 6/19/2008 4:00:14 AM   
    rcbill


     

    Posts: 449
    Joined: 2/13/2003
    From: pleasant prairie, WI, USA
    Status: offline     		The last time I checked my CG it was about 1/4" in back of the wing tube. I may have changed it slightly since then trying to find the sweet spot. I am considering going slightly more toward the tail. I don't think mine flies with the tail down but I do have about 2 clicks of up elevator. Here's the web site for the NX props. http://www.airwildhobbies.com

    (in reply to turd1)
           Post #: 4312

    RE: YAK 54 TOC1 - 6/20/2008 3:04:54 AM   
    turd1


     

    Posts: 23
    Joined: 5/18/2008
    From: Hatfield, MA, USA
    Status: offline     		Thanks, I am flying my yak this weekend and i will move the cg forwards and see if it changes.

    (in reply to rcbill)
           Post #: 4313