The oil cooler opening was neccessary to allow the pipes from the pitts silencer to pass into the opening under the cowl, I have also opened up the rear of the oil cooler opening to let the air scooped up out. Its a big opening underneath, current wisdom tells me that the outlet should be twice the size of the inlet, hence the size of hole which conveniently let me pass the silencer outlets.
On the wire, it will cut out any possible interference from the wires touching which they do on the cross over, putting the ant up the wing will require a plug of some kind to allow wing detachment, I like the idea perhaps the 2 mm electric in line plugs used on park flyers will work, and I have some of those, putting a small diamiter plastic tube up the wing through the aileron servo wire outlet will work, coincidently I'v used 24g copper wire up the wing of my DLG it works but it rattles.
Spinner is a True Turn, very true and very well ballanced, the hevier the spinner the better with all the weight needed in the front of this plane.
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No matter what anyone says 100% is the maximum you can get.
I'v gone with your idea of the airial in the wing, just put a plastic tube up the wing from the tip through the aileron servo wire opening I got rid of the idea of a plug and just feed the wire up the tube when rigging the plane, will let you know if it cures the problem.
Mike
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No matter what anyone says 100% is the maximum you can get.
Another thing I did was when I mounted the undercarridge legs I angled them to give toe in at the wheels as its two seperate legs this is possible at the mounting point, the ground handling of this is very good not swinging on take off and very positive tracking on landing it was worth it.
Mike
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No matter what anyone says 100% is the maximum you can get.
Posts: 303
Joined: 8/30/2003 From: Denton, TX, USA Status: offline
Mike, well I got done moveing, and I'm on dial up! For an week or two, then I'll get back my DSL Any ways can you show me a photo of your angled landing gear? How much angled did you use?
The angle is dictated by the width of the trough into which the legs fit, I just angled it the maximum I could get and then drilled through, pic shows the amount I managed to get. The legs supplied on mine were not of the same width, so I just ensured I had the same distance from the tail on both sides to the axel.
When will you get yours finnished and flying?
Mike
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No matter what anyone says 100% is the maximum you can get.
Flew this week end again, I just cannot belive how quick and manouverable this little thing is, as I have said before I have a Jen 56 in the Yak and for the price I can't fault this engine pulls like a train on a 13x8 I will have to time this thing I think its got to be up in the 100mph area, and I am a fairly good judge with a timmed PC9 at over 90mph and a Tigershark at 150mph both timmened and radar gunned. If you are interested the Jen engine is from Just Engines in the UK a special development in a 40 size case, it thinks its a 60 wonderfull engine, but early days yet don't know how long it will last but it has a two year warantee. I just love the Yak its fast manouvreable and snaps are the best. You must get yours flying and report back after all the bad reports on here, this one proves that my first was underpowered, which may be the problem that others are experiencing. What do you think?
Mike
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No matter what anyone says 100% is the maximum you can get.
Posts: 303
Joined: 8/30/2003 From: Denton, TX, USA Status: offline
Mike, Wow!!!! 100 mph Lol....good going, First I need to brake in my engine, I still planing on the satio 100, Have a OS 50 on stand by, If all gose well I'll brake in the engine this week end, You need to post some flying photo, for the other to see, that it dose fly!! Lol............
I will have to find someone with quick reactions to get the YAK in frame, I think it would be better on the vidio, once the weather inproves over here I plan to vidio the YAK and my Seagull PC9 with retracts, will be an interesting day.
Mike
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No matter what anyone says 100% is the maximum you can get.
Gitches all gone now just as well as I'm getting rearly fond of this plane, just took delivary of a Profile Funtana sticking an OS50 in it as thats what I have available may be to heavy but we will see, incidently I am using the new Futaba 146IP receiver its PCM but not Dual Conversion? Strange never come accross that before.
Mike
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No matter what anyone says 100% is the maximum you can get.
Posts: 303
Joined: 8/30/2003 From: Denton, TX, USA Status: offline
Mike, Good to hear that your gitches are gone, do you think its because the Ant. is in the wing? Your new PCM receiver, Or a combo of both? In one of your photo, You show how you add some wire to your pull/pull, Did you cut them out, or are you still have them in place?
Kept the wire between the pull pull cables did not think it was worth taking out as it must elliminate any RF interference that may be caused by the wire's rubbing together. Unfortunatly PCM does not elliminate interference it only disguises it by locking the controls until the signal is reestablished, the only way to see if I have elliminated the glitches is to put a non PCM receiver back in, I may try this later.
Weather at the moment is diabolical not vidioable at all see what tommorow brings.
Mike
< Message edited by BaldEagel -- 3/11/2006 10:42:16 AM >
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Joined: 3/16/2004 From: Dade City,
FL, USA Status: offline
I just purchased this model slightly used. Has anyone flown it with an OS .46AX 2cycle or Saito .56 4C? I have both and would like a recommendation on which would be the better choice. I don't need 3D capability, just sport flying. Thanks, Terry M.
This is not a 3D aircraft, do not even think of trying to slow it down it will bite. If you underpower it, it will bite worse. I have a 2S 56 in mine and its very fast and very good, my previous version had a 70 4S in and was snappy, this aircraft needs power at its design weight if you could lighten it that would make a difference. The Saito would pull a bigger prop which would help with thrust and airflow over the wings, but then the 46 is an almost equivilant and would achive the same with extra revs, the choise is what engine do you prefer.
Good luck. Mike
< Message edited by BaldEagel -- 3/17/2006 12:22:34 PM >
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All Forums >> RC Airplanes >> Sport Flying >> RE: Yak 54 .40-.50 ARF need help with pull-pull elevator setup 
RE: Yak 54 .40-.50 ARF need help with pull-pull eleva... - 
For an week or two, then I'll get back my DSL 
Any ways can you show me a photo of your angled 
