RE: U Can Do 3D
 

Thanks for the tips!
I too am going to run a Saito 100.
There are a couple little details I have time to tinker with while waiting for my radio.
I think I will be certain to include reinforcing the gear area.
Thanks again!
JLK

RE: U Can Do 3D
 

From my past experience Saito 4-stroke and YS 4-stroke engines run perfectly up-side-down.

RE: U Can Do 3D
 

Rocketman,
You are absolutely right about the YS as it is pumped. However the tank position is awfully high on the UCD. Some people have trouble with the Saito, some do not. I for one did with fuel pouring out of the carb and the cure was the installation of a Cline fuel regulator. The bonus was also being able to move the tank back to the CG. After my bud cumn thru went to a YS 110 and raved about the substantial difference in power I followed suit and have never looked back. So far I have purchased 1 63 FZ-S, 2 110FZ'S and a 140FZ and although the Saitos are fine engines I am sold on YS Performance:D. That being said, I sold the 63 FZ-S and both 110'S and now only have the 140FZ in my Wildhare Edge 73" 540T. The money for the other three is going for a DA 50R and a 28% airframe. I slapped my Saito Fa-100 into the UCD and it's now at our LHS on consignment.

If anyone is interested I have a NIB UCD 60 available for a real reasonable price. Shoot me a PM to discuss the details before I put it in the Marketplace.

RE: U Can Do 3D
 

Here's my experience with the Saito 100. When I installed it I couldn't get it to idle. I have also read about the problem with the fuel tank, so I decided to install an on-board glow. The next time I went flying there was a guy there that knew more about engines than I do and wanted to try and adjust it. To make a long story short, he adjusted it so it idled fine. And the trick was that the low-speed screw needed to go in about 4-5 turns from factory settings! I never tried that because I didn't think it was possible to be that much off factory settings.

I took off the on-board glow after that. There was no need for the extra weight. 15 flights later, still no problem, no deadsticks. I have even flown 2 flights with the presure line off the muffler (I forgot to put it back on after refueling). No extreme 3D flying of course. I run 15% Cool Power.

Serafim

RE: U Can Do 3D
 

nice pics serafim, i also love this plane, have the 46 also with a saito 100:D

RE: U Can Do 3D
 

hey serafim, that guy knows what hes doing, i have my low speed at 1/2 turn out from bottom for a good idle
just make sure to use a little castor in your fuel to keep your bearings alive.

RE: U Can Do 3D
 

Here is a picture of my UCD 60 with my daughter.
All I am waiting on is the radio's return from being serviced.
Wish me luck!
JLK

RE: U Can Do 3D
 

nice job jlk, and i would be proud of my daughter too if i were you;)
is that where you fly? man what a yard[sm=thumbup.gif]
your gonna love it,great and clean job!!

RE: U Can Do 3D
 

Gary,
Thanks for the compliments on the plane.
It's thanks to folks like you that have helped me thru the assembly that has made it possible.
We are very fortunate to live on a 3.5 acre acreage that we bought in May. It's the reason that I have decided to return to RC after nearly 20 years!
Where I will fly from is behind the house. The view you see is looking along side the garage toward the old hwy in front.
I should have room enough.
Now the only thing is to decide if I can fly it myself first flight or go to the nearest club an hour away.
I'm leaning toward going for it!
JLK

RE: U Can Do 3D
 

yea john, if you been flying for a while you can do it with the u-can-do, hey that rhymes:D

RE: U Can Do 3D
 

This is the end of this thread for me, lost my 60 UCD last weekend. Was showing a friend I haven't flown with since May how I've learned to harrier, did a beautiful low pass and when turning around(was way too far away) it flipped upside down at maybe 10ft,got it upright&throttled up but something went wrong again & it went down. That plane does a few really cool 3-D maneuvers plus it goes nice & slow, helps with the rolling circles. After getting over it, I decided to buy the Showtime, I know the double tapered wing is way better for harriers&elevators and its one of the few 3-D models with a pattern style fuse, hoping it does knife edge as nice as UCD. Also the quality of the UCD is lacking,white glue for the firewall doesn't hold up to the oil, I made a lot of modifications to make it right, hope I dont need to for Showtime. Having said that, for the money, the UCD is still a good buy(only like the 60, the 46 is too squirly). Moving on to the Showtime & Yak threads.

RE: U Can Do 3D
 

OK...
It's about time to test fly.
Please check me out.
I have a new 9C installed.
Why did I ever mess around with my old 8SGAP?
With my Great Planes CG machine set for the recommended CG I am a little nose heavy.
3 sheets of printer paper on the stab brings it to dead level.
Weighing the paper on a food scale the weight comes to .5 ounce.
I plan on leaving the balance point there.
My throws are as follows:
Ailerons:
high rate 2" each way
mid rate 1 1/2" each way
low rate 3/4" each way
Rudder:
high 2" each way
low 1 1/4" each way
Elevator:
high rate 1 1/4" each way
mid rate 1" each way
low rate 3/4" each way
The plane weighs 7.7 pounds on our bathroom scale...I am a little suspect of this.
I have sealed the elevator and aileron gap.
I have my name, address and AMA# inside the plane.
I have the snap roll switch inhibited...don't ask...
[X(]
The plane range checks fine at home but will do another at the field.
The engine has been broken in on a test stand and only needs final adjustment now that it's on the plane.
I will probably do this at home.
Checked all the linkages and servo arm screws.
The receiver antena IS routed outside the fuse.
I plan on going over all the fasterners one more time.
This list certainly isn't all inclusive but can anyone think of anything else?
Thanks!
JLK

RE: U Can Do 3D
 

Make sure your batteries are topped off and have fun:D

RE: U Can Do 3D
 

Feels good HUH John:D
you did say field, so does this mean your not using the back yard? i hope so;)
Good luck again, and let us know how it goes[8D]
oh! one piece of advice, if you are maidening this yourself and havent done it in a while you be ready for it to roll a little right or left so be ready to fly and trim, remember and make sure you know where your trims are, it would be good to have someone with you at least;)

RE: U Can Do 3D
 

I don't know how much throw that is b/c I usually look and guess degrees. I have always flown mine at high rates about 45 degrees and low rates about 2/3's of that. I find it quite difficult to fly very smooth w/o some expo, but, you might not have the problem. I like to have at least 25% expo. Also.. i think my rudder trim is more than 3/4 inch!! I don't have right thrust and just mixing rudder to throttle. Is that really enough to even control the plane especially if you get in trouble. I guess I have never measured the stuff, but, that seams so tiny.

RE: U Can Do 3D
 

Gary,
Thanks for the encouragement!:)
I can't decide whether to fly it myself first flight here at the place or go up to the club in Iowa City...about 50 miles from here.
It's been at least 15 years since I've flown.[X(]
I do have a G3 simulator that I play with a little bit.
If all things are normal I know I can get the plane up and around first flight.
Some of the things I know I have lost proficency on are dead stick landings or if I have some kind of bad out of trim condition.
I'd sure hate to stuff it first flight.:(
One thing that has really changed since I was last involved is the radio.
I think I told you about my old 8SGAP that I was trying to get going. I also have a 9VAP from around 1990. One of the early computer radios. I can remember how awkward and confusing the manual was trying to program it.
This 9C though is something else.
Very easy to understand and set up.
I've had to hold myself back programming stuff like the ailevators though. I don't want to get to deep in to it just yet. Can't wait to be able to do so many mixes.
Wow!
JLK

RE: U Can Do 3D
 

John, a couple of clicks of up andjust be ready for a small amount of roll with the ailerons even(i think mine rolled seft a little), when i maidened mine i was amazed at how easy it flew on low rates.i want to say just do it but to be safe go to the club, its only 45min up:D

RE: U Can Do 3D
 

Yeah.. I have also thought about using ailervators. Sounds kind of fun.

Some of the mixes I have setup are rudder to aileron to correct for knife edge roll coupling, rudder to elevator to correct the pitch to the belly, throttle to rudder to correct for the flat firewall and no right thrust, aileron diff to correct adverse yaw during rolls, throttle to elevator to give a straight downline so it will not go to the canopy when you try to go straight down and you throttle down. All of these together make it fly like a complete different plane. There is lots of information on the rcu and at futaba or horizon site (jr). I know all of these can be done via hardware and probably used to be back when you were doing it, but, man.. with these new controllers.. this stuff is just easy.

Also as you get into it.. I have decided today when doing 3d with about 45 degree throws and trying to do harriers, walls, waterfalls, and even prop hang... 100% mix of elevator to aileron to add spoilers is a must. Everything is smoothed out in 3d flying imo. The waterfall litterally did not move down at all from what I could tell.. the walls were sliding instead of going up.. I could do a loop with full elevator and it would "slip" the entire way and fall right into harrier.

Once the correction for ke flight was all fixed and my throttle to rudder mix for lack for right thrust was fixed it made my rolling harriers and rolling circles a LOT easier.

Sorry for such a long winded reply.. I wish someone had told me about all this stuff a long time ago. I am probably much to excited. Just got back from a great flying day learning a lot of new stuff. Not that I am awesome, but, I can do it all when I am lucky.. ha. And when it goes right I just bet a huge sense of accomplishment. Long ways to go. I love this hobby.

Let us know how your maiden goes!! Welcome back.

RE: U Can Do 3D
 

Gary and all,
It flies!!!!!!!!!!!!
I took it to the Iowa City club and had a highly recommended pilot help me.
Couldn't have been a more level headed choice.
He took it up and trimmed it, checked it out and landed it.
We topped it off and I took it off with no intention of landing it.
What a ***** cat!
I remember from the late '80s a model called The Hots.
People would set them up so extreme that they would think their radio was getting hit when in fact the were experiencing accelerated stalls. I figured these 3D planes would be the same.
I was wrong!
I set it up with the conservative throws and had no problem with it.
I went ahead and landed it my first flight.
I had to abort the first approach because it floated so dang far!
It needs some flight trimming...some aileron differential and move the CG back some but overall I am very satisfied.
I am also very satisfied with the 9C.
Very easy radio to understand.
The only negative are the wheel pants.
The guy helping me made an excellent landing and my landing was pretty good.
But...one of the wheel pants had a crack, not thru and thru but a crack, on the bottom from the wheel opening to near the rear tip of the pant.
Don't know how long these will stand up.
So...
Thanks everyone for all the support.
My re-entry to the hobby so far is great!!!!!!!!!!!
JLK

RE: U Can Do 3D
 

allright Johnnnnn, very glad it went great, it does fly smooth and easy, i told ya:D, well i can rest easy now, its almost like maidening one myself(waiting on someone else to get one up), when i saw this post i got a little nervous and then remembered how easy it is to fly, if you have anymore Q's just let us know, way to go;)

RE: U Can Do 3D
 

Thanks Gary!
JLK

RE: U Can Do 3D
 

I have 5 or 6 flights on the plane now.
Starting to get more and more comfortable.
Today made the first flights off our acreage.
My only concern is the landing gear.
I reenforced it but it seems so many folks have had trouble I worry about it.
The Saito 100 has been problem free ( I better knock on wood).
It idles well and has unlimited verticle.
I am still running it very rich.
I have my cg right at the recommended location now.
I have pretty bad pitching to the landing gear side in knife edge.
Should I work this problem by mixing in elevator with the rudder or should I try to use the ailerons as flaps/spoilers to improve it?
Thanks!
JLK

RE: U Can Do 3D
 

I use rudder to elevator and rudder to aileron. After these were added it flies like a completly different plane. Still have troubles however at the top and bottom of ke loops where the rudder is either not having as much effect or having less affect on the resulting coupling caused by the rudder, but, the ailerons and elevator that are mixed seem to have too much effect. That is what it seems like anyways. I would be curious if someone has tried the always offset flaps. That has worked on other planes to correct the ke pitch coupling.

RE: U Can Do 3D
 

:)If you use those mixes it will ruin the nice KE coupling.
Thanks
Barry

RE: U Can Do 3D
 

Funny Barry. This is one of the worst ke performers I have ever seen, but, it is workable with mixes.

Also.. John, your concern about the landing gear is a good one. That block will likely come off if it is pulled on too hard. I put extra triangle stock and epoxy all around the edges and it still came off on my old one. There is just not enough surface area there or something. I left the wheel pants off b/c those are just a couple of spears for your wings when they tuck under the plane when you land in higher grass too much.

So.. to not get off the question.. has anyone tried to use flaps to get rid of the ke pitch coupling.