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Ultra RC 87" Yak Build and Fly

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Ultra RC 87" Yak Build and Fly

Old 11-23-2006, 02:39 PM
  #26  
Maudib
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Default RE: Ultra RC 87" Yak Build and Fly

Really any of the mainstream 50cc engines will fly this plane with tons of authority.

The BME50 is a fine choice, so would a Brison 3.2, ZDZ50NG, Brillelli 60, RCIgn Converted G-62...

All of these should build out to 15.5-16.25 lbs and will provide LOTS of 3D performance.
Old 11-23-2006, 02:52 PM
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Default RE: Ultra RC 87" Yak Build and Fly

Thanks for the info. Now to find a motor for cheap
Old 11-23-2006, 05:38 PM
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Default RE: Ultra RC 87" Yak Build and Fly

ORIGINAL: Turbobruce

I'm thinking of pulling the trigger on this bird. Would a BME 50 provide great 3D power for this bird. I do not want to spend the money for a DA right now. What are excellent motor choices for this plane for someone on the CHEAP?
I would rather buy a DA50 & get a lil cheaper Plane (like the new WildHare Extra300) !!!. That way u will have a good engine after the Plane expires ;-)
Old 11-24-2006, 01:21 AM
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Default RE: Ultra RC 87" Yak Build and Fly

I just bought one. Always wanted one of these. Not sure what engine. I might try a Taurus or ZDZ.
Old 11-24-2006, 09:56 AM
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Default RE: Ultra RC 87" Yak Build and Fly


ORIGINAL: JoeAirPort

I just bought one. Always wanted one of these. Not sure what engine. I've had my share of issues with my DA 50. I might try a Taurus or ZDZ this time.
You'll need to extend the bottom of the firewall for the taurus. At least I would have had to for my TS42.
Old 11-24-2006, 11:13 AM
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Default RE: Ultra RC 87" Yak Build and Fly

Is that because of the radial mount?

ORIGINAL: jrjohn

ORIGINAL: JoeAirPort

I just bought one. Always wanted one of these. Not sure what engine. I've had my share of issues with my DA 50. I might try a Taurus or ZDZ this time.
You'll need to extend the bottom of the firewall for the taurus. At least I would have had to for my TS42.
Old 11-24-2006, 01:44 PM
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Default RE: Ultra RC 87" Yak Build and Fly

JOE
i was thinking a taurus 52 also heard a lot of good about it, the way i see it on the firewall would half to be extended about a 1/2 inch,that is if that radial mount is 4 inches round from what i have read, but it would not be that big of deal. i have had good luck with the da 50 i have,just looking for something with a little more power and little weight gain.
ENJOY!
Old 11-24-2006, 11:15 PM
  #33  
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Default RE: Ultra RC 87" Yak Build and Fly


ORIGINAL: closetguy

JOE
i was thinking a taurus 52 also heard a lot of good about it, the way i see it on the firewall would half to be extended about a 1/2 inch,that is if that radial mount is 4 inches round from what i have read, but it would not be that big of deal. i have had good luck with the da 50 i have,just looking for something with a little more power and little weight gain.
ENJOY!
your exactly right. if you have not installed the firewall yet, you could cut one that hangs down a little further. Yes it's a radial mount, and it's a thing of beauty. the taurus is a sweet running engine, I have the TS-42 and it runs like a sewing machine

John
Old 11-25-2006, 03:30 PM
  #34  
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Default RE: Ultra RC 87" Yak Build and Fly

Well guys, I thought I would keep you all motivated by showing another video of this Yak. and let me say this again, I am pretty new to this game (RC) so I am not good at it yet, but this plane just begs for rudder touches, harrier landings and rolling harriers, and to me, I just can't say no to that oh my camera man is new to shooting videos too.

http://media.putfile.com/Ultra-RC-Yak




Let me guys what you think

Ahmed
Old 11-25-2006, 03:48 PM
  #35  
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Default RE: Ultra RC 87" Yak Build and Fly

I just love it! This plane flies so light on the wing eh?
Old 11-25-2006, 03:56 PM
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Default RE: Ultra RC 87" Yak Build and Fly

Great plane/Flying.

Any thoughts on assembling the Phenolic Control horns with Gorilla (Polyurethane) glue? I am thinking that the expanding property of the glue will be be better than the recommended Epoxy/ Comments?

Also is it necessary to cut the square covering & use the Base Plate? Can we just cut the slots & push the horns in?
Old 11-25-2006, 03:58 PM
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Default RE: Ultra RC 87" Yak Build and Fly

you got that right Maudib. there is one bad thing about this plane, you would never be happy flying almost anything else, everything will feel so damn heavy comparing to her




ORIGINAL: Maudib

I just love it! This plane flies so light on the wing eh?
Old 11-25-2006, 04:28 PM
  #38  
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Default RE: Ultra RC 87" Yak Build and Fly

While G-glue would be fine... just watch that it doesn't foam and push out the horn or misalign the two sides...

I'd stick with epoxy. Wipe with rubbing alcohol and lightly sand the parts that will sit inside the surface for best adhesion. Then coat the inside of the slot and the horn base with epoxy and seat.

Yes the covering removal and base plate attachment is important... it helps tie this area together and distributes the forces. I wouldn't recommend you skip it.

You can always paint or cover the area again if you want the "prettiest" look. Or you can paint the horns and base plates themselves before gluing... JUST don't paint the areas that get epoxy.
Old 11-25-2006, 04:29 PM
  #39  
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Default RE: Ultra RC 87" Yak Build and Fly

Tell me about it... my original EF spoiled me SOOOOO much.

ORIGINAL: xtdsm

you got that right Maudib. there is one bad thing about this plane, you would never be happy flying almost anything else, everything will feel so damn heavy comparing to her




ORIGINAL: Maudib

I just love it! This plane flies so light on the wing eh?
Old 11-26-2006, 09:21 AM
  #40  
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Default RE: Ultra RC 87" Yak Build and Fly

I have a spare Brison 3.2 available if anybody needs one. I has 1.5 gal through it, about as close to brand new as you can get.
Old 11-26-2006, 10:41 AM
  #41  
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Default RE: Ultra RC 87" Yak Build and Fly

Has anyone else started building the plane?

I just opened the hinge slots in the wings/ailerons & noticed that they do NOT match up. It seems that the ailerons are slotted/corvered reversed. ie. The slots in the Aileron match the slots in the Wings ONLY IF the aileron is flipped upside down.

Does anyone else have the same issues OR did I end with a bad kit?

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Old 11-26-2006, 10:54 AM
  #42  
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Default RE: Ultra RC 87" Yak Build and Fly

ORIGINAL: arvind_rao

Has anyone else started building the plane?

I just opened the hinge slots in the wings/ailerons & noticed that they do NOT match up. It seems that the ailerons are slotted/corvered reversed. ie. The slots in the Aileron match the slots in the Wings ONLY IF the aileron is flipped upside down.

Does anyone else have the same issues OR did I end with a bad kit?

Inject a small amount of epoxy or pacer hinge glue into the slots of either the wing or the alieron, Or glue in a small scrap of wood the size of the hinge half. (leave the slots that matche the hinges on the other side, then cover each with a small scrap of covering, and re-slot. If you return the alieron for another, there is a chance the hinges won't line up perfectly. Your going to seal your gaps anyway, you will never see the slight repair and it's easy to do. I like the Pacer hinge glue, it swells the wood for a tite fit and will never come loose. Clean up is a snap

John
Old 11-26-2006, 11:03 AM
  #43  
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Default RE: Ultra RC 87" Yak Build and Fly

I guess I could elaborate a little more on why I don't like using epoxy for hinges. For some unknown reason using epoxy for hinges makes the phone ring, people come to the door, or my wife has an emergency everytime I start mixing a batch. Pacer hinge glue does not seem to have this effect on people.

john
Old 11-26-2006, 11:25 AM
  #44  
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Default RE: Ultra RC 87" Yak Build and Fly

Just put the wife to sleep and unhook the phone from the wall or use Pacer hinge glue






ORIGINAL: jrjohn

I guess I could elaborate a little more on why I don't like using epoxy for hinges. For some unknown reason using epoxy for hinges makes the phone ring, people come to the door, or my wife has an emergency everytime I start mixing a batch. Pacer hinge glue does not seem to have this effect on people.

john
Old 11-26-2006, 11:31 AM
  #45  
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Default RE: Ultra RC 87" Yak Build and Fly

I am not able to check mine just now... but it's always possible a fellow flipped the surfaces whe higing them prior to covering...

JRJohn's suggestion is right on...

I'd reslot the aileron to match the trailing edge of the wing... looks like just the four center hingeslots need moved?
Old 11-26-2006, 11:41 AM
  #46  
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Default RE: Ultra RC 87" Yak Build and Fly


ORIGINAL: xtdsm

Just put the wife to sleep and unhook the phone from the wall or use Pacer hinge glue






ORIGINAL: jrjohn

I guess I could elaborate a little more on why I don't like using epoxy for hinges. For some unknown reason using epoxy for hinges makes the phone ring, people come to the door, or my wife has an emergency everytime I start mixing a batch. Pacer hinge glue does not seem to have this effect on people.

john
Ahhh I see, I was unhooking my wife from the wall and putting the phone to sleep.

The devil is in the details!

John
Old 11-26-2006, 11:47 AM
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Default RE: Ultra RC 87" Yak Build and Fly

You could put your wife on the phone and kill TWO birds with one stone...
Old 11-26-2006, 11:51 AM
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Default RE: Ultra RC 87" Yak Build and Fly


ORIGINAL: Maudib

You could put your wife on the phone and kill TWO birds with one stone...
And with a credit card for a little extra security. See, thats what I like about these threads, we can figure out any problem

John
Old 11-26-2006, 12:14 PM
  #49  
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Default RE: Ultra RC 87" Yak Build and Fly

arvind rao
your not the only one mine do not even come close i was going to try these flat hinges but some of the wire pins that hold the to haves together are missing sense i got to cut new slots anyways i am going to use robart pinn hinges like i always do
HAVE FUN AND ENJOY!
Old 11-26-2006, 02:22 PM
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Default RE: Ultra RC 87" Yak Build and Fly

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