Thanks guys. I feel I've made some good friends on this thread and will always be fond of the UCD. As far as the YS110 and 91AC go, I will more than likely put them on the market................or maybe in a Mayhem!

I do want out of nitro, but then again, these engines are animals and the urge is still strong. Just ordered up an Extreme Flight Extra 330 and will see if I like the silence of electric.

Just before getting into the branches, I did, by popular demand, a low, high speed pass, right down the center. There isn't an electric out there that can compare to the roar or raw power of the 110. It would haul all 9 lbs. of the UCD straight up untill it looked like the period at the end of this sentence. We will see what the future brings, for now its a gasser and a soon to be delivered electric. Joe

TODAY 1 OF MAY MAY UCD DEATH...........

I´M DOING A HOVER BUT THE ENGINE CUT POWER ABOUT 2 SECONDS AN THEN PICK UP... BUT IS SO LATE,,,,, THE .90 PUT MY UCD .46 WITH NOSE DOWN AND CCRRAACCSSHH...

I THINK I REPAIR IT BUT ANOTHER DAY...

Wow the 3000th post.

What the fu-----!!?? The cowl looks perfect,must have been a perfect flat spin! However, the rest of the plane-R.I.P. Not to minimize your pain,I know its the worst part of the hobby and Ive been there way too many times myself. 3-D baby!!,first 15 years flying, only a few crashes,last 5 years doing 3-D,crashing all the time,usually less damage due to the speed but still hurts. I'm slowly going to gas myself but am having so much fun & still learning with the Do. I will always keep one because I can get low and not worry too much about $$$ and safety issues. It has taken me further than I expected at first,but I did have to make a few mods to it. People at my field used to knock the Do& me too but (mainly because they have bigger,nicer looking,more $$$ planes)but I'm turning them around with the low torque rolls,harrier landings,rollers,slow HA KE & a lot of other cool stuff. I'm not giving that up unless I can do all that on another plane,and I dont even care about what the others are saying,now if they were doing more than me,maybe I would listen.
P.S. : Get a 60 size Do,they are better IMO

I was really getting into the inverted flat spins. Too bad the branches ripping off the extremities had to tell me something was going very wrong. Best part is, I recieved the elv. servos back from Horizon today, of course, one day late. They finally gave up on fixing them and replaced them with new ones. So I now have 6 servos, a reciever, battery and one honkin engine. Hmmm, different days bring different thoughts. Joe

Joe,
I say go for it and here's a deal. I have still have that unbuilt kit with an extra cowl. It is yours for the asking, all you gotta do is pay for the boxing and shipping. Like Tony Soprano would say, "I might ask you for a favor later" . Brian....

Brian, thanks for the more than generous offer. Now I know why Susan married you, you big hearted lug. After four UCD's I will still call it quits on that model, although my decline won't ever effect my willingness to do you a favor. You earned points just on the offer. Thanks. Joe

Joe,
It's your call, I tried to sell it for $145.00 with no takers. Now I can't even give it away [sm=spinnyeyes.gif]. Thought it would be safer up north with you than here with storm season coming . Let me know what you get, a Mayhem maybe?

I'm hoping to get out again this weekend & maybe do my first hovering tail touch. I probably should try to stop the torque rolling with aileron,anyone do this with the Do? (stop the torque rolling) Where does it end?? As soon as I pick up something,I,m thinking of the next step with the ground ever closer. Fatal attraction,sooner or later.I know its not something you just force it into,you need to do things enough(up higher) until comfort&safety levels are good. I seem to prefer calmer days lately to do the entire 3-D routine. I used to fly in very windy conditions but now all I want is calm-not getting much though. This 3-D thing can drive you m a d!(but in a good way)

I could bounce the foamie's tail off the ground like a pogo stick, but the only time I could get the UCD that low was when I was crashing it. Joe

I'm bobbing up & down with the 60 Do but no lower than 10-15 ft. up so far. I try starting a hover from harrier or pull up from 0ft up but it climbs a little too much when I throttle up,ends up 10-15 ft again. I should practice the wall some more,that looks like a good way to start a very low hover,another guy at my field does that very well with a 30% WH Edge. I even start a hover on take off,just pull a lot of up after a short roll,I got away with it once or twice but the harrier or wall seems less risky. The coolest/strangest way I ever got into a low hover was bounce to a hover, I have air-brake(up spoilerons/up elev. drops the spoilerons)) mix with throttle mixed in too,the mix drops out as throttle is increased. So if i throttle up first and start a roll,pull up elev until the nose lifts up and then drop the throttle& elev to set back down(if I time it right and repeat this, the nose bounces off and back to the ground, looks sort of like one of those cars in Ca. that bounce up & down,my buddy calls it a "homey hopper". I've done this to a hover a few times but it is a little scary for me. Maybe my first hovering tail touch will start with a buddy holding the plane vertical and letting it go-not sure I would get any volunteers?

Hi , for those who wanted to know if you can put a mvvs 26gt petrol engine,, here it is but mine is an evolution 26gt. Ive already put this in a previous post. The tank has moved from front to middle just under the wing. I cut a hatch at the rear end of the fusealge where the batteries for ignition and servos go. I must say that with this sort of setup you need goood servos. Today my rudder servo just just died in neutral position (lucky me !) it was a Futaba 3010 so now im going to buy a hitec HS-5645MG. Apart from that the plane just flies great with just 10grams at the back and a 17 x 8 Menz-S prop
[img][/img]

Gozintite! Looks like the bottom of cowl would have to be cut off. Is it hard to hover with that prop,looks like it would always be pulling a bit too much?

No hovering tail touches yet but the torque rolls are getting better,I play around sometimes doing a vertical rolling harrier,I keep it in a very HA hover & give it rolling harrier input,looks a little like rolling harrier but it barely moves forward and I can pop it back up to a hover instantly. Practiced some walls over the weekend,really quite easy,I had to add a little right rudder to keep it from falling left and I use spoileron mix,makes them nice & horizontal slide is great. My goal is to start a torque roll very low and then maybe a tail touch. Seems like a wall is a good way to do this,any other methods out there?(the harrier excluded)

Its been so windy this spring,hard to stay in one spot hovering. I need to get out more to practice getting lower,the sim would be nice.
Did more harrier landings but broke a prop on the last one,no other damage,barely even bent the gear,need longer gear! I've had a dozen 3 day weekends this spring and still have only had one really nice day with light winds! Definately a change from normal weather patterns. Can always fly though,just makes some things harder to do. Have to finish the Ultra RC Giles,getting close. Man,what servo mounting rails! 1/4" ply to doubled ribs made of ply-bullet proof! Hope the Giles at least keeps me at the same level,I know different planes have vastly different 3-D characteristics. Had a EF Yak that I just could not hover for more than a couple seconds,dont want to be there again. I know the set-ups are the key, but finding the right one for a plane can be tough. Almost forgot,dropping lower in a hover is probably the toughest way to get DOD,I do drop it a lot but its usually not a conscious effort on my part.

The Show Time LG is perfect for the Do,at least for harrier landings,about an extra 1.5 " height and it does not flex so much like the stock gear. No more broken props & I can live with the extra width. After breaking the last of my Zinger 17X5 (cut down & tapered to 16.5X5)I found out how critical the perfect prop for 3-D can be. I had it on OS1.08,the spool up was perfect and the RPM range was at about half for hovering/T.R. When I put another prop on, the difference in a hover was dramatic. You want a prop that will spool up quickly but not pulling too much(not always climbing).With a little prop tweaking I can easily adjust in the vertical,just a click or 2 up or down on throttle does it,makes it so much easier when the throttle movement is minimal. Now, if the wind would only stop, I could practice tail touches while TR-or at least get a little lower.

Since I put the Showtime gear on, I've done a dozen harrier landings WO any damage-its the best. We have finally had some great days,light wind. I havent done any hovering tail touches yet but the torque rolls and rolling harriers are getting better. I think these are the hardest to do,require the most practice. The Do does rolling harriers quite slow,gives you a little more reflex time,I hope it doesnt spoil me when I get the Giles into the air. I know I've tried rollers with other planes that roll faster like the Yak,I had to cut back on the ailerons to slow the roll rate,still had trouble keeping up. I came up with a new manuever-I go vertical,cut throttle to a hammer-head,after a short vertical down line I do a parachute,to elevator & then harrier. Almost forgot,does anyone do walls with the 60 Do?
I've been trying to start a very low hover by doing a wall,I coast in low,just a foot or two up,do a wall but it seems I,m climbing too much,I end up 10 foot up no matter how I try. I want to start the hover at 3-5 ft up but it takes more than that to get vertical,shouldnt a wall slide forward without gaining altitude? I use spoileron mix when doing this,it helps limit the climb some but I notice some other guys doing walls with almost no gain in altitude?

Man, the weather has been really great! At least one good day each weekend.If I dont get my Funtana X100 soon I'm going to cancell and order another 60 Do. They've been keeping me hanging since mid April,now they are saying sometime in June. I want a different plane to fly but can only take so much waiting.

I had to replace the Cline unit,engine has been sagging in a hover,only time it does this. I 'm not even aware of it until I try to throttle up,when I move the stick from half to full-nothing happens,it even drops r's a little-not good,I have to hit elevator to get out of the hover. I've tried adjusting the low end many times,if I get it richer,then flame outs during transition,the hovers are then OK. Cant seem to find the perfect setting.(Another reason to go gas?) A big weekend is coming up,camping,flying,eating,drinking,more flying,I want my Do ready for my first hovering tail touch,its supposed to be windy, so I have an excuse ready!

A replacement always does the trick. Could have pulled it apart to see if it needed a cleaning. Not much in there to wear out unless the diaphram got a hole in it.

I had to run a rod through the little rubber 'one way' valve once to open it up. I think at the time it was too close to the muffler in the return line and may have been affected by the heat.

Wind is not an excuse! The only thing to get you outa this one is showing up drunk or with thumb casts. Joe

The UCD 60 is the best nitro 3D plane I've flown. I've tried MANY others but keep coming back to the DO. Flies exactly like a big foamy except it harriers much better. I have a spare DO assembled waiting for the day I can't tape and CA the original back together anymore

Both excuses might be used! Some of our past camp outs have been ugly affairs,speaking more of myself than anyone else. One time at 1AM(I think)I picked up a black log from the fire only to find out it was still smoldering-had blisters on my palm the next day,still flew!
I know that if I keep up the pace,I will do a torque rolling tail touch,since I recently have been dropping down while hovering. My biggest problem doing that is pucker and starting the hover low enough to have a shot. The Do is my second and is pretty ratty looking from several dork-ins but I havent looked back since I started torqing. I shouldnt worry too much about the Do itself,its ****ly now,safety is the main thing,and that is kept under control by distance from me& flight line. I need to start a hover very low and its been a bit of a challenge,the harrier doesnt seem to work,possibly because of spoileron mix and maybe being a bit under-powered. I can do a wall from a foot or two up but end up climbing more than I want,I think I need to stay at high idle a while longer to do it and I dont trust the engine,maybe the new Cline will help me. Anyway,going to have fun this weekend either way.

well I Just killed my u can do 3d 60 I was hovering low when the engine decided to die and I had no way of recovering, it juts broke in half oh the engine was Saito 125 with iron bay regulator (tank is at the CG) I have been flying with 16x4 for a month or so, and decided to try 16x6 and I did richened things up a bit since the 16x6 puts more load on the engine but after finishing more than half of the tank, while I was hovering, the engine just lost rpm and died. will overheating cause the engine to die like that? I mean if it was lean or rich it would have died from the begining right, I mean why would it fly and hover nicely for almost 10 mins or so, and all of the sudden she dies while hovering.


any thoughts?

xtdsm, the greatest temperatures are reached in a hover. Prop wash just doesn't cut it if your not well ventilated. If someone has a temp gun @ the field, see if you can get a reading.

Mix, sounds like fun, although a burnt hand is a definate party killer.

When you float on in for that pop up into a hover, squeaze a little more float time out of it till it really slows, hit the elevator first, to drop the tail, and finally,,,,,,the throttle. See if that helps, up high of coarse, untill you are sure of that combo. It shouldn't climb out on you like that. Good luck, Joe

How did you tune your engine? Try tuning your engine at 1/3 tank. In this way, when you are hovering with your tank low, the engine does not get too lean and cut off prematurely.