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Old 09-18-2006, 08:00 AM   #1
hady
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Default Ultimate Biplane 33% ( 100cc ) from world models

i am planning to buy Ultimate Biplane 33% ( 100cc ) from world models
can someone help me take a decision regarding this bip also its cheep for a 33 % 550 usd
any one knows flight characteristic or any info would be grateful
thanks
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Old 09-18-2006, 04:45 PM   #2
jumah
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

hey man, if look to 3D flying ; it's the best choice! you can do nice hovering, harrier, torq roll...... and all maneuver. and if do some setting like flaperon or (and) spoileron you will do alot of maneuver very easy like harrier , wall, bleder,barachout, elevator, tight roll and rolling harrier
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Old 09-19-2006, 02:25 AM   #3
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

hi Jumah
what i am scared of it's that i have a bad experiance with world models. so you think its worth it ??
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Old 09-19-2006, 02:37 AM   #4
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

by the way jumah i have a friend in quatar he also fly's he's name is nasri rebeiz you should know him i guess
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Old 09-19-2006, 04:05 AM   #5
Mithrandir
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

(Here too)

Hello Hady....
I recently built a 42% Ultimate from World models....
HORRIBLE ARF to assemble!!!! It does actually all go
together... but the fit is not terribly good....
Actually... the only good things about the plane are that
it looks cool... and flies really well... (At least the 42% I had)....
My plane was a little to heavy for a DA150... Flies very lightly
on the wing though.. actually floaty on the wing... but a bit
slow scratching out of a hover or TR... at least at my temperature
and altitude..

http://media.putfile.com/flight-numb...ing-acquainted
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Old 09-19-2006, 04:19 AM   #6
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

mithrandir do you think that the plane is havy duty ? due to its low quality structure and material ?
the design is really great yes
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Old 09-19-2006, 12:36 PM   #7
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

I would characterize the covering as barely adequate....
The structure is mostly OK... 'cept all of the alignment pins in the tails and wings
will require maintainance... Put brass tubing over the stab pins, open the hole
in the fuse slightly and wick in a little CA into the hole to harden the edges...
I also had trouble with the tubes in the stab and fuselage oval'ing from vibration...
I fixed it.. but a pain in the neck... None of the alignment holes in the fuselage
fit the lower wings, the cabanes were fabricated by a 6 year old girl with a pair of pliers...
On the 42%... they did reinforce the main gear plate with fibre-glass...
and you MUST do what I did in the picture.. or the Cabanes will compress and crunch
the top fuselage sheeting!!!

But... it was a lot of fun to fly....... The structure overall was actually pretty
tough... strong plane with the flying wires.. (Wires are NECESSARY!!!)
Another thought... QQ is gonna have a Python for the 100 cc soon....

Bottom line here.... the Ultimate was a fun plane to fly, and had some nice qualities...
but I am extremely short on time... and the extra effort is not woth the trouble to me...
All my buddies say the 102" QQ Yak is THE *****..... (for a 100 anyway)

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Old 09-19-2006, 07:02 PM   #8
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

Did you tell world models about what you found so they can fix it? They are very willing to fix any issues with the plane.
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Old 09-19-2006, 07:13 PM   #9
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

I am willing to wager lunch that when AeroWerks used WM as a Builder/Supplier... there were numerous emails exchanged between AW and WM discussing the "Problems"... and as we can all see... AW no longer uses WM as a supplier......
This is of course speculation on my part... (Shame on me!!!)... but seems pretty obvious.
The problems I have found are a result of inadequate assembly techniques, inadequate tooling, and a bit of design immaturity.... the wheels are in motion
for how this thing is built... and I can't imagine they are interested in changing how things are done at this point.....

I will vouch for how much fun it is to fly!!!! But a nightmare to build....

Too bad too... cuz it would not be hard to make this thing like 3 or 4 pounds lighter... then it would be a real Whiz-Bang-Throw-Down 3D machine with a DA150!!!! Then I would buy another one myself!!!

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Old 09-19-2006, 07:22 PM   #10
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

I own one of the 33%. The wood quality is not the best but not too bad. Is not a bad ARF for the price you are paying for it. Great for 3D stuff. I have a DA100 on mine. You need a heavy engine to get this thing to balance right.

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Old 09-19-2006, 07:31 PM   #11
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

Quote: Originally Posted by SMOKEY
........You need a heavy engine to get this thing to balance right.

Smokey
Wow... With mine... I moved everything under the canopy 'cept for the Motor, igntn and igntn battery!!!
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Old 09-19-2006, 08:20 PM   #12
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

I originally had a ZDZ 80 single in it. But after adding about a pound and a half of lead on the cowl and still not balancing. I gave up and installed the DA100. I like useable nose weight

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Old 09-20-2006, 12:50 AM   #13
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

so i guess that this plane overall is ok for its price hard for building and nice to fly
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Old 09-20-2006, 02:33 AM   #14
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

QQ 102" yak... $1000.00

WM 33% Ulty.... $ 650.00

I would pay the extra $350 and get the QQ!!!

(US Dollars)
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Old 09-20-2006, 07:50 AM   #15
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Default Re: Ultimate Biplane 33% ( 100cc ) from world models

Quote: Originally Posted by Mithrandir
QQ 102" yak... $1000.00

WM 33% Ulty.... $ 650.00

I would pay the extra $350 and get the QQ!!!

(US Dollars)
what does QQ means and where can i find the extra u are talking about ?
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