U-Can-Do 3d 46?
#4651
Hey Ron,
Found a source for your shielded servo leads. Buy this and solder your connectors on and solder the fourth wire to the negative wire at on end only for shielding. A bit pricy at .75 per foot at B & B Specialties. If you have a source for computer wire this four terminal wire is black, white, red and a bare ground (this is your sheild wire) and can be had for as little as .10 to .20 cents per foot if you could find it this way. If not, and you don't mind spending $6 or $8, here it is:
http://www.bennettbuilt.com/page8.htm
Found a source for your shielded servo leads. Buy this and solder your connectors on and solder the fourth wire to the negative wire at on end only for shielding. A bit pricy at .75 per foot at B & B Specialties. If you have a source for computer wire this four terminal wire is black, white, red and a bare ground (this is your sheild wire) and can be had for as little as .10 to .20 cents per foot if you could find it this way. If not, and you don't mind spending $6 or $8, here it is:
http://www.bennettbuilt.com/page8.htm
#4652
Great time for a typo! I meant to say, solder the fourth (bare shield) wire to the negative (black) lead at the connector on ONE end only, the other end floats free and shields the other three.
#4653
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From: Fort Mohave,
AZ
rtn9105.... "Do" #2 started life with the tailwires on, so I'll never know... But I have since
switched the cables to Kevlar, and now removed all the medal clevis for plastic one's So
there is no medal to medal at all... Guess it's not as strong either [:'(]... Thanks
Blisster... Thanks for the link..... I'll be taping the ant. to the wing for a bit... It's not all
that bad.... I started this, to get as many opinions as possible... But I guess the consensus
pretty much is some type of shielding for what ever reason... I've pretty much, moved,
twisted
, checked, used 3 different recievers, 3 different ext. wires, weaken my tailwire
setup etc. with no change
.... Anyway Thanks.... I need a break from it... So I'll just
tape and fly for now.... Then ask.... To shield or not to shield..... I would hate to do it,
and still have the same problem, then find out it was my tail wheel causing the problem
all along.... Hey I gotta go do something
Thanks again........
On a better note
... I've cycled the 6v that I had in my Kat... It was only an 1100mah
and discharged from fully charged showed 998/1015... Better than 90%.... It's in the "Do"
charging.... Have one on order just incase....... So both the "Do" and S.T. are ready.....
B Good People...
switched the cables to Kevlar, and now removed all the medal clevis for plastic one's So
there is no medal to medal at all... Guess it's not as strong either [:'(]... Thanks
Blisster... Thanks for the link..... I'll be taping the ant. to the wing for a bit... It's not all
that bad.... I started this, to get as many opinions as possible... But I guess the consensus
pretty much is some type of shielding for what ever reason... I've pretty much, moved,
twisted
, checked, used 3 different recievers, 3 different ext. wires, weaken my tailwiresetup etc. with no change
.... Anyway Thanks.... I need a break from it... So I'll justtape and fly for now.... Then ask.... To shield or not to shield..... I would hate to do it,
and still have the same problem, then find out it was my tail wheel causing the problem
all along.... Hey I gotta go do something

Thanks again........
On a better note
... I've cycled the 6v that I had in my Kat... It was only an 1100mahand discharged from fully charged showed 998/1015... Better than 90%.... It's in the "Do"
charging.... Have one on order just incase....... So both the "Do" and S.T. are ready.....
B Good People...
#4654
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From: Pittsburgh, PA
barry
good job flying the 120
i was going to take my 60 out this weekend but my tx(Fut 8u) broke
it was just the case but i dont know how
it will be 3 weeks before i fly it
38
good job flying the 120
i was going to take my 60 out this weekend but my tx(Fut 8u) broke
it was just the case but i dont know how
it will be 3 weeks before i fly it

38
#4655
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From: Idaho Falls,
ID
38...Thanks. I just got a new servo today. Maybe I can install it tomorrow and fly. Just takes a couple of minutes. I can't wait to try it with the new prop. I was getting 25% more thrust. That will help.
The stinks that your TX is down. Ever consider the 12Z, 14MZ?
Thanks
Barry
#4656
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From: Leetonia,
OH
Barry If you want some interesting reading. Check out this forum on failed Hitec Karbonite gear servos that seem to fail just like yours. I had puchased 8 of them to go in my Morris Hobbies Big Boy and then checked out this forum. Good luck on Giant UCD.
http://www.rcuniverse.com/forum/m_28...tm.htm#2880669
Doug
http://www.rcuniverse.com/forum/m_28...tm.htm#2880669
Doug
#4657
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From: Idaho Falls,
ID
dougwill...Thanks for that link. Both of my servos broke just like the ones in that forum. Tonight I'm taking the four karbonite servos out of the Giant and replacing them with the HS5625 and licking my wounds and counting my blessings that I didn't crash the plane with these failures.
Man, they shoudl pull those servos. They don't sound like they are working for anybody. Mine broke on the first and second flights and I did virtually no aerobatics. Just getting the plane trimmed out. Bummer.
Anyways, thanks again for the link. It's not worth it to me to even try them again. I think I just use them for throttle servos. They should be fine for that.
In fairness, I did use blue locktite on them. But hey, it didn't say not to.
Thanks
Barry
#4658
Wow, while researching hinge gap sealing, I stumbled across a product on a sail plane site called "Gap Seal" It's clear, stiff mylar tape that has adhesive only across one half of the tape! It sticks to covering and it says it's flexible enough for smooth movement of the control surface. At $5.95 a roll ain't bad for the time and trouble it would save, just unroll, stick it and trim it! I think I'll try it and give a report on how it works. I have several planes to seal. The site:
http://nesail.com/detail.php?product...d9f366f857a050
Blisster
http://nesail.com/detail.php?product...d9f366f857a050
Blisster
#4659

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From: williamstown,
NJ
I,m very happy with my HS635's but never even thought of using them on anything more costly than a Do,although I have put them on the smaller surfaces of a 10 lb'er (elev. halves.) I've used a dozen of them from 46 UCD,60UCD,68" YAK, H9 ST without any troubles,in fact, they still have very little slop in them,they wear better than MG IMO. On another note, I had to fly my 46 UCD this last weekend because I dorked my 60 again,was torquing at 10' and it flipped out too fast for me to handle it plus I still had spoileron mix on which didnt help the pull out very much. It was so nice out ,I actually flew the 46 which usually justs sits when I have the 60. I found out that in light wind, this thing isn't too bad at all for 3-D. It harriers as well as the 60(with the same modifications),it hovers OK but needs almost constant up-elev to hold it,I could add some up-thrust for that. I wanted to shoot some harrier landings but have 15" prop,it would certainly hit the ground even on a good one. I'm going to put the 60's gear on the 46,its a perfect fit for the holes and adds about 1" height. I had to settle for dragging the tail wheel a couple times in a harrier,satisfying, but I like to land it.
#4660
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From: Fort Mohave,
AZ
Barry... When I was going to order servo's for the S.T., I was thinking about the
Karbonite gear servos... I called Hitec and asked about them, The tech said the
same thing as the fourm... That they are good in .60 size and below models,
anything bigger go with the M.G. servo's. He said that the Karbonite has not
performed as they expected on .60+ sized models.. Because they are too hard
a gear and on those models the gear will crack and fail....
Great morning for a couple flts. pretty much no wind... One each on the S.T. and
"Do", They both flew Great!!! Then someone flipped the switch... Instant high winds,
Had trouble taking the planes apart without someone to hold it:-(......... Atleast the
battery in the "Do" still showed high in the green after the flt......
Karbonite gear servos... I called Hitec and asked about them, The tech said the
same thing as the fourm... That they are good in .60 size and below models,
anything bigger go with the M.G. servo's. He said that the Karbonite has not
performed as they expected on .60+ sized models.. Because they are too hard
a gear and on those models the gear will crack and fail....
Great morning for a couple flts. pretty much no wind... One each on the S.T. and
"Do", They both flew Great!!! Then someone flipped the switch... Instant high winds,
Had trouble taking the planes apart without someone to hold it:-(......... Atleast the
battery in the "Do" still showed high in the green after the flt......
#4662
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From: Idaho Falls,
ID
mixmaster & raideron...I'm done with the Karbonite servos. The Giant is a big airplane but flies very slowly. Also, the servo only has 1/2 the control surface. So...in terms of square inches it's about the same or less surface area than the UCD60. Also, I literally only flew for 10 minutes before one broke. And I didn't do anything serious at all. Nothing. If they break that easily...they are not for me.
I'll use something else.
Thanks
Barry
#4663
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From: Fort Mohave,
AZ
I would do the same thing Barry... IIRC.. You had them on the flaps??... Any case I
would do as you... A Model... More so a "Do"... And being the Big Daddy "Do"...
There is just too many other options out there.... Keep us updated!!!
would do as you... A Model... More so a "Do"... And being the Big Daddy "Do"...
There is just too many other options out there.... Keep us updated!!!
#4664
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From: Idaho Falls,
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raideron...Yes, I had them on the flaps and ailerons. The two that failed were on the flaps. (one right and one left) I'm collecting some HS5625 to put on there now. I have 3 so I guess I'll have to buy one more. Probably won't be able to get the beast in the air until next week now.
Oh well, back to the 46. I'll fly that one this Saturday. My favorite anyway...unless you count the 60...and the Giant.
Thanks
Barry
#4666
Should I blow off putting the OS Max .50 SX on my UCD .46 and put on the Thunder Tiger Pro .61? I don't own a 4-stroke[&o] so I want to make sure I have enough "go" in front of this plane with "2-smoke"! The .61 does 1.8 bhp @ 13,000 at 26 oz. The OS Max .50 is right around 16 oz. and does 1.8 bhp at the top of the rev limit. There is another 4000 rpm available (1000 practical) to the .61 after the 1.8 bhp power point but it has to carry another roughly 2/3 lb. (over 10 oz.) in engine weight. I guess it's a matter of thrust lbs. too. I am at that point of hanging the powerplant on and I had second thoughts. I wish I could find a .72 or .80 four stroke cheap! (Hint, hint) Now, I'd for sure trade my wife for one of those!
Blisster
Blisster
#4667

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I would stay with the 50sx, same power less weight, it's a win/win all around. Plus you might run into CG problems if you put all the extra weight of the 61 on the front of this plane. My Saito weighs 19oz and the plane balances with the battery at the back of the canopy.
#4668
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From: Idaho Falls,
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I think the 46 will fly ok with the SX50. I had that engine on an Ultra Stick 40 and liked it ok. It's no 4 stroke but it's a good engine. I think the lighter you keep the plane the better it will fly. I'm not sure the vertical would be unlimited but I do think it would hover with some pull out. I'd save some money and buy the first Saito 82 you can find. You'd be amazed at what this plane will do with that engine. Thanks
Barry
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From: williamstown,
NJ
I have Saito 100 on mine(46),no problems balancing with 23oz engine. The fuse is long and allows a large range for the CG. I dont see another 3 oz. as being a huge problem,I have cut out the fuse bottom and mounted the battery/rcv just behind the wing saddle on the 60 Do, using a hatch I made. If you are not worried about making some mods and overpowering it,go for it,otherwise,put the 50 in it.
As for the 2 vs. 4 stroke thing, I've been there and back. I went to all 4-strokes,then realized that there is no special advantage to them. You can achieve the same thing with a 2 stroker and save money on engine,fuel,repairs,props. Just use a powerful enough engine to do the job.
As for the 2 vs. 4 stroke thing, I've been there and back. I went to all 4-strokes,then realized that there is no special advantage to them. You can achieve the same thing with a 2 stroker and save money on engine,fuel,repairs,props. Just use a powerful enough engine to do the job.
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From: Sandy,
UT
First off, Hey guys! long time no type.
I still have my U-Can-Do but I have been flying gliders for the last bit. I still miss the U-Can-Do though, killer fun plane.
Blisster, I started flying mine with the O.S 50sx and was pretty dissapointed. With the right prop you can get it to do most of the stuff, but unlimited vertical and that motor never really did collide in the same sentence with my plane.
I switched to my Magnum .91 and it was a whole different plane. I could really get my self in trouble with that combo. Also, remember flying wires on the tail=good
Here is the latest kit build (well actually its my first kit build in forever. Sorry its not a U-Can-Do.)
I still have my U-Can-Do but I have been flying gliders for the last bit. I still miss the U-Can-Do though, killer fun plane.
Blisster, I started flying mine with the O.S 50sx and was pretty dissapointed. With the right prop you can get it to do most of the stuff, but unlimited vertical and that motor never really did collide in the same sentence with my plane.
I switched to my Magnum .91 and it was a whole different plane. I could really get my self in trouble with that combo. Also, remember flying wires on the tail=good

Here is the latest kit build (well actually its my first kit build in forever. Sorry its not a U-Can-Do.)
#4675
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From: Idaho Falls,
ID
Hi guys...Did some flying today instead of just talking about it. Kinda windy (10MPH) but flew 7 times. I flew the UCD60. What fun that plane is. On the last flights I broke the bottom rudder hinge out, again. I think I'm just torqueing it too much. But it sure flys sweet. All that torque on the rudder gives me those beautiful rising flat spins. What a great flying plane.
I even did so low passes today. Ala' gjeffers. Only difference mine weren't as low and they weren't inverted, and they weren't very long.
Jesss....I don't even get as low as him when I land.
Thanks
Barry


