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-   -   U-Can-Do 3d 46? (https://www.rcuniverse.com/forum/3d-flying-82/817264-u-can-do-3d-46-a.html)

sctcrash 05-14-2005 10:36 AM

RE: U-Can-Do 3d 46?
 
WAHOO!

Just got back from the maiden flight of the U CAN DO. Flies great, I get it pretty tame today to get used to the feel of the plane, but man it was great to have her up in the air.

rclement 05-14-2005 11:51 AM

RE: U-Can-Do 3d 46?
 
sctcrash, Good for you!!!! [8D] Fun planes, aren't they? They are so fun to fly......... Glad to hear you got it up and flying.....[8D] but hey, where's the video? or pictures?

hockeyrules99 05-14-2005 12:29 PM

RE: U-Can-Do 3d 46?
 
SCTCRASH, Glad to hear your first flight went well! You'll love it more and more with every flight!

raideron 05-14-2005 03:10 PM

RE: U-Can-Do 3d 46?
 
sctcrash.... Great on you maiden... It is a wonderful feeling when they go
up and cme back for the first time:-)) Hey it's a great feeling when they
always do that:D Congrads

CeeGee... my servos that have 150% on the transmitter gets close to looking
like you described...

gjeffers 05-14-2005 05:08 PM

RE: U-Can-Do 3d 46?
 
ring--ring--ring-- every time you hear a bell ring an angel gets their wings;), congrats sct crash its great,

good vid CeeGee, i see those guys everyday out here from china lake navel wepons station and edwards afb. i live right in the middle of china lake.

v_twin1k 05-14-2005 06:16 PM

RE: U-Can-Do 3d 46?
 
CeeGee,

I had the same problem with my servo travels. I picked up some new servo arms from Du Bro that are significantly longer and stronger than what was on there. By having the extra length at the servo arm you can use a smaller amount of servo travel, which should eliminate the binding.

Saito 91 goes in tonight! Can't wait for the four stroke.

-Rob

SPUD37 05-14-2005 07:06 PM

RE: U-Can-Do 3d 46?
 
Good Job SCTcrash, Lands and flys great huh? Keep em flying.

EL TEMUCANO 05-14-2005 07:26 PM

RE: U-Can-Do 3d 46?
 
18 sec hover i´m learning...

gjeffers, you tell me for a good flat spin put all the elvator trim, well i do more 45º and i can do a very flat an beautifull spin, a very nice ke spin, and i´m trying to do harrier, now i can do nice watterfall.

thanks gjeffers. soon , meibe i change my AX46 for a FX60 for a better hover.

Sergio

gjeffers 05-14-2005 07:36 PM

RE: U-Can-Do 3d 46?
 
your welcome Sergio, my inverted flat spin became better as i added more elevator and rudder and now it just sits there and spins(very tight because of max rudder).as far as ailerons go you dont need as much, just enough to keep her flat, and beautiful they are:D,glad i helped, the larger engine with larger prop will also help keep it more flat at less rpm's.

EL TEMUCANO 05-14-2005 07:39 PM

RE: U-Can-Do 3d 46?
 
what is the better prop for FX .60, for 3D??

Barry Cazier 05-14-2005 07:43 PM

RE: U-Can-Do 3d 46?
 
:)CeeGee, Most of my planes have that same situation on at least one servo. It doesn't mean it's binding, just that is has "camed" over the leverage point and can't get back over with you pushing it. As soon as you turn on your radio it goes right back to center, right? In fact with this situation you are not pushing too hard on the hinges which is a good thing. Sometime if you don't be careful you can have your servo max out the throws and then continue to push. In that case you are actually trying to pull the hinge out of place. That's bad

Sctcrash: Congratulations!!!!! Good job on your maiden flight. Aren't these UCDs great? Lot better than a Mayhem.

Went to the field today. Flew somebody's elses plane. Uproar 40. Not to bad but no UCD. I only flew it once and landed it without incident. I'm still taking some time in the penalty box for the way I've been acting lately. Maybe won't fly my own again. Maybe just mouch off the flyers already there. Cheaper.
Thanks,
Barry

Barry Cazier 05-14-2005 07:45 PM

RE: U-Can-Do 3d 46?
 
:)Oh, I posted a new post: PCM vs. FM. If you guys care to chime in, or discuss it here, I'd love to hear your opinions.
Thanks,
Barry

gjeffers 05-14-2005 07:50 PM

RE: U-Can-Do 3d 46?
 
CeeGee, you are talking about the horns on the aileron,right not the servo! if so mine are the same if i push them in the down position, but not with the tx on even with full rates, that would be a lotttt of travel.

Barry Cazier 05-14-2005 07:58 PM

RE: U-Can-Do 3d 46?
 
:)Sorry, I probably misunderstood. I'm in a fog lately. Oh, I forgot to mention, but when I flew today I wore a new "lucky" tee shirt that I'll wear from now on. I stayed with my "lucky" hat although it's a little questionable. I put a rag in my rear pocket make from an exact copy of my "lucky" tee shirt. I also started wearing a pair of those fishing sunglasses. Somebody told me they are good luck. Seemed to work today.
Thanks,
Barry

sctcrash 05-14-2005 08:00 PM

RE: U-Can-Do 3d 46?
 
Thanks guys, It was great. It really flew great, nice and stable, but i can tell that i can really let it loose when i am ready. I even had it in a breif inverted flat spin, but didnt realize it until i was falling out of it.

This was the first time i have actually taken off the maiden voyage on a plane. Well successfully that is, did my somethin extra the first time and had my ailerons wrong.

I saw an uproar at the field today also, it looked like it would fit inside my UCANDO. I still cant beleive how big the UCANDO really is.

Ceegee, that video was AWESOME!

goldenclan 05-14-2005 08:24 PM

RE: U-Can-Do 3d 46?
 
Barry, haven't had a chance to try one out, but want to. That is the pcm thingy. Thinking about putting one in my cap 232. Any body have a 2.4 cc brission that they want to get rid of?

thirsty003 05-14-2005 11:40 PM

RE: U-Can-Do 3d 46?
 
Hi All,

Been reading this forum from end to end and now have my own UCD .46 experience to share. Maidened her today and boy does it fly nice. I've got an OS 70FS running a 14 * 4 prop and it's almost perfect.

I'm a beginner to RC, only been flying about 5 months and I reckon this plane is the easiest I've flown so far. I've only got two flights up but I can tell straight away that it's a keeper. I've got the CG at about 4.75" and there is quite a bit of coupling during rolls and a bit of down elevator required for inverted flight so I'm going to move the CG back about half an inch and see how we go.

I stuffed the battery pack under the fueltank and also used a MG servo for the rudder and I had to add a lump of lead to the nose for the initial flights. I'll take that out now that I know it's docile enough for me.

One question - if I try to laterally balance the plane it seems the left wing drops quite a bit - is this normal? I'd like to not add weight to the wingtip as it's fairly fragile.

Regards

Tony

thirsty003 05-14-2005 11:53 PM

RE: U-Can-Do 3d 46?
 
1 Attachment(s)
Here are a couple of photos before the maiden flight.

raideron 05-15-2005 12:18 AM

RE: U-Can-Do 3d 46?
 
Welcome thirsty003... Great job on your UCD... And congrads on your Maiden!!
The CG range is pretty wide... Mine is at about 6" And tho a little touchy, She
still flys great.. If I remember correctly I think I added and oz to my left wing
also... I bought a used one and I had to redo the wing tips so I epoxied the
weight to the tip... No problems to date.. It has not moved even with my
flat spin landing, and a few deadstick harder landings.. Well enjoy your UCD
and keep us updated:-)

thirsty003 05-15-2005 03:41 AM

RE: U-Can-Do 3d 46?
 
Thanks Raideron. I'm actually a practicing pattern flyer and I bought the UCD to practice pattern. I figure it should fly most pattern type stuff nice and slow and when I want to get into 3D I can do that also.

I had a little trouble trimming the UCD as it was falling out of loops and wouldn't climb straight up but it was a pretty windy day so I guess I'll have to wait for a calm day before trying any more trimming.

BTW - what weight did you add to your wing tip? I think you might have left that bit out of your reply :)

Regards

Tony

BTW - I'm going out flying tomorrow all day so I'll post another report then.

goldenclan 05-15-2005 05:50 AM

RE: U-Can-Do 3d 46?
 
Good jog thirsty, Congrats on the maiden! What volt of batt are you using? You have the same set up as I do with mine. Except that I am using a 70 magnum. I think that the magunm is a little heavyer than the OS so I did not have to add any weight to the plane. I use the batt to set the cg on mine now. I also have the cg set back at around 5 to 5 1/2. I am using a 13x4w apc on mine with a 6 volt batt mounted under the canopy(painted it black) Not sure how many flights I have on mine but it is close to 20 I think. The way that I added weight to the wings is to take some split shot (fishing weights) and flatten them. I placed them on the wing until the wings were pretty level. then super glue them there. if you put them in the blue area, they don't show up so as bad. I am going to get some blue paint and pait them.

thirsty003 05-15-2005 06:14 AM

RE: U-Can-Do 3d 46?
 
Hey Goldenclan,

I'm using the standard JR 600MaH battery under the fuel tank. I've taken some weight out of the front now so I should be on about 5" I reckon. I'm flying tomorrow so we'll see how it goes. I'm mostly into pattern at present but I reckon the 3D stuff will get me soon. The plane is just soo easy to fly.

Thanks for the tip regarding the tip weights. I'm going to do the whole pattern type trimming tomorrow if it's calm so we'll see what that shows up.

Regards

Tony

rclement 05-15-2005 08:36 AM

RE: U-Can-Do 3d 46?
 


ORIGINAL: v_twin1k

CeeGee,

I had the same problem with my servo travels. I picked up some new servo arms from Du Bro that are significantly longer and stronger than what was on there. By having the extra length at the servo arm you can use a smaller amount of servo travel, which should eliminate the binding.



-Rob
I realized that's probably the problem as soon as I posted the question........[:-]
I have a couple of longer servo horns that I need to put on.........

Nice looking plane Thirsty.[8D][8D] Great job.

I almost went flying yesterday afternoon but decided I needed to stay home and get some work done......:( I must have been nuts..... Oh well....

predator500 05-15-2005 08:40 AM

RE: U-Can-Do 3d 46?
 
Hey long time no post! Well I mounted the Magnum .91 on my UCD and I'm going to attempt to fly it today. Only thing I'm sceptical about is my S3004's in the wings giving out. Oh well Ill replace them sooner or later.... Ive never run a 4s engine before so today will be a learning expereance for me...... Maybe if Im lucky I'll try some hovering! But Ill start out slow and get a feel for the engine...

Colin C

gjeffers 05-15-2005 08:53 AM

RE: U-Can-Do 3d 46?
 
welcome thirsty, youve picked one of the best flying planes out there(i love it). on that latteral balance thing, it might dip to the left wing because the muffler is on that side and im not sure about which side your throttle servo is on but if its on the left also that might be the reason, just something to think about,i just balance mine with the ailerons;) just as long as it flies great im not adding any weight:D

think ill go fly now,lets go Ron its a beautiful day here in the desert[8D]

Barry Cazier 05-15-2005 09:35 AM

RE: U-Can-Do 3d 46?
 
:)Welcome thirsty003. I hope you enjoy your plane and this forum. Good looking job on your build. On your question about lateral balance, I recommend you balance by adding wing tip weight. I feel it really improves the way the plane flys. This is especially true in hover and other stalled manuevers. I balance mine by hanging from the ceiling with thread on the tail wheel and a small nail I mount (just for this purpose) at the center of the firewall on underneath side. I hang the plane upside down for this exercise. I only had to add a very small amont of weight to mine. I took finish nails and coated them in epoxy glue and drilled small holes in wing tip and pushed them in. They never move. On another plane I had to add about a 1/2 oz to balance. On that one I epoxy glued the weight (flat stick on type) and then put a patch of monokote over it. Stays very nicely and all you see is a buldge where the monokote is.
My CG is at 5 3/4". For me this is just about perfect. I can land easily and still do a rising flat spin. You can't do either well without a perfect CG. This plane is very forgiving on CG. It can have the most variance of any plane I've flown.
Be careful. These planes tend to crash.
Thanks,
Barry

Barry Cazier 05-15-2005 09:42 AM

RE: U-Can-Do 3d 46?
 
:)Another thing I do to laterally balance to help in not adding much extra weight, is to mount the battery on edge, upright, on the side of the fuse that needs the weight. The battery is heavy an even though it dosen't usually stop the requirement to add wing tip weight it reduces the amount needed. Good luck.
Thanks,
Barry

raideron 05-15-2005 01:52 PM

RE: U-Can-Do 3d 46?
 
1 Attachment(s)
thirsty003... On my weights, I had the stick-on weights at 1/4 ea.
I think I used under 1/2 oz... I balance mine almost like Barry, But
I do it up right, I have a screw on the firewall and this may not be
good, but it has worked for me so far.. I just put the kevlar<sp>
stunt kite string on the rudder hinge.. The string is about 4' or so
with a sliding loop at both ends, I set the plane on the garage floor,
doors closed and lift it for a second and add weight to what ever wing
needs it and lift again until both wheels set down at the same time
make my small cut it the bottom of the wing and epoxy in and re-
cover... I'm sure you have your own way.. It all works... And it does
make a difference....

Gary.... Great weather.... Thanks keep sending it over:-) My brain
timer is working a little better... No out of fuel deadsticks the last
two days:-)))) But it's kinda a off and on thing:-(


gjeffers 05-15-2005 06:33 PM

RE: U-Can-Do 3d 46?
 
ok, i know all you guys are Futauba guys(most of you) im thinking of converting, is this what i want?[&:]

http://www.wholesaletrains.com/Detail.asp?ID=200411329

Thanks guys:D

predator500 05-15-2005 07:44 PM

RE: U-Can-Do 3d 46?
 
^ Well if your willing to splurge a little more, you can get the 14 channel computer color screen radio (for around $2000 bucks for transmitter only!). But yeah that's a really good raido, anything with elecrtonic trims is nice. I would get it if I were you... I have a T6XAS and the only thing I don't like are the trims (manual, but the "servo saver" confuses me so I have to trim out every airplane I fly with it).

BTW, the maiden with the .91 in the nose was AMAZING!!!! It fly's so well and doesnt even act over powered! My new favorite airplane. All I need to do is fine tune the engine and she'll hover no problem! I tried today, but wasn't comfortable enough with the plane yet. But vertical take off's are no my favorite way showing off. There was some guy with a .46 on his UCD today and you could tell the difference in all over preformance.

Colin"Addicted to U"C

gjeffers 05-15-2005 08:37 PM

RE: U-Can-Do 3d 46?
 
i thought you would like that 91 preditor 500, if the cg on the plane is ok and the engine dont weigh to much i cant see whats wrong with going with power, it saves you fuel(didnt you use less than normal) and its great for vert pull out. you dont fly around full throttle all the time and use it only when you need it and you cant beat it, its great:Di love my 100 in my 46[X(] i flew today and got my hovers up to about a minute and i do believe the 46 hovers easier than the 60 size(especially with this engine)
i dont know if i have enough brain cells left to program a 14 channel, i might be pushing it with a 9 channel, but i think ill like this 9cap, everyone else does here, sooooooooo ill try it, these guys are right about everything;):)
glad you had a good day, so did i[sm=thumbup.gif]

rclement 05-15-2005 08:51 PM

RE: U-Can-Do 3d 46?
 
Gjeffers, I'll have to say I love my 9C. It's just perfect. I wish I had splurged and bought it originally. Now I have a couple of other radios that I'll have to put up on Ebay.....[:o]

Man am I bummed.......:( it sounds like lots of you got to fly this weekend and not a chance here. It's raining cats and dogs here today. That's the problem with this part of the country. One day you're sweating to death and the next day you're soaking wet.........[:@]

predator500, congrats on the maiden of your 91 UCD..........[8D]

Barry Cazier 05-15-2005 10:37 PM

RE: U-Can-Do 3d 46?
 
:)gjeffers, Here is the radio you want, I think. It is the latest version of the Cap. It's called a "super". Also it has the PCM reciever. From the other post I have out on this subject people as saying it has less tendency to glitches. http://www2.towerhobbies.com/cgi-bin...I=LXHMD2**&P=0
Thanks,
Barry

Barry Cazier 05-15-2005 10:42 PM

RE: U-Can-Do 3d 46?
 
:)gjeffers, I don't know exactly what the differences are between the Super and the regular Cap. Mine is the regular old style and I like it. But if you are buying a new radio then I would get the latest.

Speaking of that, tomorrow I'm gonna go get me a digital camera. But I need some help. Once I have the pictures on the camera how do I upload them on here? I hear you have to shrink the file size or something. Man I know nothing about that. Please help.
Thanks,
Barry

rclement 05-15-2005 11:33 PM

RE: U-Can-Do 3d 46?
 
1 Attachment(s)

ORIGINAL: Barry Cazier

:)gjeffers, I don't know exactly what the differences are between the Super and the regular Cap. Mine is the regular old style and I like it. But if you are buying a new radio then I would get the latest.

Speaking of that, tomorrow I'm gonna go get me a digital camera. But I need some help. Once I have the pictures on the camera how do I upload them on here? I hear you have to shrink the file size or something. Man I know nothing about that. Please help.
Thanks,
Barry
Barry, With my pictures and camera, when I load them from the camera to my computer I usually crop them and size them to about 50% then click on the section at the very bottom of the posting area that says "click here to upload" A box will come up that says "browse" When you click on the browse it will open a section that shows your files. (pictures, my documents, etc.) You are then able to select the picture from there and click Ok and wait and it will upload it to the site and it will tell you when it's complete. If you have a dial up connection it may take a little bit to load. Then click OK at the bottom and your done. Then an angel will appear in the picture. Oh wait, that's my wife..........[8D]

The MacDaddy 05-15-2005 11:56 PM

RE: U-Can-Do 3d 46?
 
Ok, a little lazy to look through 89000 posts, on the UCD w/ a Futaba 9C, how do you guys get the dual ailerons and elevator servos to work? Ive read the book and still cant get it right. I am using the 7 ch FM rx btw. What needs plugged in where and how do I mix it? I also would like to put "reflex" in for harriers and ele-flaperon for tight loops. Help please....... someone at another field programmed my Somthing Extra w/ these features and I cant copy it for this airplane......it's ready to go and the radio is holding me up......I know someone knows this... I wish you could "hot sync' w/ other people's tx....some day soon im sure.


The Mac

raideron 05-16-2005 12:03 AM

RE: U-Can-Do 3d 46?
 
I just have an old cheapie camera which uses compactflash cards, so maybe
the new ones are different... But I just read it off the card or harddrive and
upload it here....

thirsty003 05-16-2005 05:15 AM

RE: U-Can-Do 3d 46?
 
Hi All,

I flew several more flights today and I am really enjoying this plane. You guys are right - it makes me look a lot better than I really am :)

I'm trimming the model currently and I've actually found the lateral balance is fine. I need a little more right and down thrust though so i will be doing that and then flying some more in the next few days.

I'll keep you all posted,

Tony

BTW - the weather here in Oz (Adelaide) is quite nice at the moment - usually around 20 degrees C but a little breezy a lot of the time - the UCD handles the breeze fine though

raideron 05-16-2005 10:14 AM

RE: U-Can-Do 3d 46?
 
Hey Tony... I was thinking I need more rt. thrust also, I'm not sure
if it was caused by my "Flat spin landing" and not getting it true when
repairing or just that I never noticed it before, but I'm seeing it now...
Anyway keep us posted as you said:-)
Pattern huh.... So the UCD does that OK??? I know it floats forever and
is a slow easy flyer, and it can make you look better than you may be:-)

v_twin1k 05-16-2005 11:31 AM

RE: U-Can-Do 3d 46?
 
Here is an issue I just had while replacing my 50 SX with a Saito 91:

The owners manual says to place the engine so that the black plate of the spinner is 5 inch (150 mm) from the firewall. 150 mm is just about 6 inch, not 5. When I mounted up the 50 SX originally, I didn't catch the typo in the book, and mounted the engine 5 inch out from the firewall. Everything seemed to mount great there, but the engine cowl was mounted about an inch too far back (the graphics didn't line up well). I think that the book meant 6 inch from firewall to spinner, but there is no way that the engine mount that came with plane is long enough to extend the 50 SX out to 6 inch. Has anyone seen this problem? Is there a way that stock engine mount can even get an engine out that far?

Thanks,
Rob


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