Does anyone have one of these flying ? Are they any good? I have a Saito 150 I'm thinking of putting on one. Thanks

Saito 150? That's an overkill. I've seen them fly with a OS91 FS, Saito 100 and a YS91. All had plenty of power for all types of flying...

Check out the 3d forum. There is a multi page four star thread going on there...

Thanks Guys

Hey Roadhor, long time no see. You still running that muffler? Yeah, I think the 150 is a little too much for the U-Can-Do 3D. Now I know you want a rocket, but do you want to keep the covering on the plane, hehe! I bought one the other day, planning on putting a Saito 100 on it. I saw one fly with an OS 91FX and it flew the plane great. Plenty of power to hover also. Elvis will tell you about it if he sees this post, it's his plane. Jump on in here Elvis, I know you haven't left the building!

Wade

Wade ; I'm still using he muffler & loving it. I bought a new 36TT & it really made a difference with that engine. A guy at the field wants to buy my Magic & engine combo, & I'm looking at a potential replacement. I want something that'll knife edge, "the Magic will not". I do have YS 91 I could use instead of the 150 & if the plane will weigh below 8lbs it would probably give the performance I want. Nice to hear from you Wade, keep in touch.

I think Elvis said the U-Can-Do 3D knife-edges very well. The YS 91 would fly it great.

Wade

:drowning:

Anyone know if an os .61fx will fly one of these? I never see a post of anyone useing this small of engine, just wondered if anybody had seen one fly with this combo?

What about a Pizazz? It's a little cheaper than a UCD3D. I have one with a Saito 72. As long as you keep it light it will really tear it up (I think everyone says that about 3D planes-Duh). I use an APC 13x6 on mine and it hovers great. The throttle response is unbelievable, as long as you use a 6v rx batt to spped things up.

I've had nothing but great success with mine. Here's a pic: http://www.olypen.com/gblight/rc/pizazz.jpg

That pic is actually one of the first Pizazz I had. My new one is slightly different. Added graphics, no carbon fiber gear. Same idea though.

I think the 61FX would fly it around pretty good as long as you didn't want to do any hovering. If I used this engine I would definitely put a mousse can on it to get a little more out of it. I feel this setup would fly it ok here, where I live, but I don't know what your elevation is.

Wade

(bump)

I have a UCD with ST90 and moosecan. It weights 7.5lbs with 1100mH nicad battery. Hovers and pull out are great. I think a Saito 150 would definetly be a overkill. the only problem I have with the planes hovering ability is that I can't back it down in a hover. I can back other planes down, but I can't do it with the UCD. I only have about 10flights on it though. so I need more time. I can get about 1 1/2 torgue rolls out of it everytime. so fars its next to the best hovering plane I have flown.

Dave McDonald is using a St90 on his as well.

As for a OS61 It will fly it fine. But hovering would probably be limited.

As this thread has shown- these are about the best planes to learn and do 3-D manuevers (especially those that start from a hover). But two members of our club have experienced tail failures due to the lightly constructed design.

Don't let this stop you from getting one. But when you do (or if you already have one) , add extra glue to reinforce the soft balsa under the stab plywood plate. This can be done through the servo mounting holes. Otherwise, "U-Can-Watch" your plywood stab plate (with stab attached) flutter to the ground while the rest of the ship arrows into the ground.

This isn't flutter and it's not from high speed passes. It's from soft balsa under the stab with only a 1/8" stringer for reinforcement. Come on Great Planes- you can do better than that !

I love the way the plane flies and am now building #2. Everyone should have one of these things- but reinforce the tail end.

Another tip- mount your engine to the right side... even though the directions and the cowl are for inverted. Unless you plan to do a lot of modifications to lower the tank, an inverted engine mount puts the center line of the tank WAY above the venturi. This creates a very annoying difference in mixture between inside and outside manuevers (OS-91 FSR). This is probably not a problem if you pop for the mega-buck pumped 4-stroke. But I've flown them both. The 2-stroke has plenty of power on 10% fuel. The 4-stroke has just enough in the vertical's, even with 30% fuel.

m.gramling,
The Macs header for the ST 90 showed up! I've got some JB Weld curing on a couple of cans so I can resume the ST 90 MCP project.

Wade

I think after reading some of the posts I will go with a ST.90 I have laying around, and either mouse can it or put a pipe on it. Has anyone got any tricks on lightening one of these up. I'm not sure how light there built cause I have only seen one sitting on the ground.

Epoxy Cup,
I would think the UCD would have plenty of power with the ST. I don't see any areas that you could lighten up really, especially anything that would be worthwhile. If you get one then you'll definitely need to reinforce the landing gear block area, unless Great Planes has done something different on the newer ones. If someone else knows any lightening tips for this plane then let us know.

Wade

I had a Saito 120 on mine and it was far overkill... I had to add almost 4oz of weight to just begin to balance it. Needless to say it came off it. Iam putting a ST90 on it now and hope to fly it tomorrow with that motor. We'll see...

Thanks for the info. I picked one up at the LHS and hope to start on it next week, when I should have some time. I will put the ST.90 in it. Wreckr, if you fly yours let me know if it will pull out of a hover? By the way are you going with the stock muffler? It looks great but I think Wade is right there isn't much worthwhile to lighten up.

Actually I mounted the motor but didn't get to fly it. I sold the plane yesterday...

The ST 90 will easily pull a UCD out of a hover, especially with an APC 15x4w.

I have just built mine and want to know what servos would match up best? I am using a Futaba 9CAF radio and installed a O.S. .70 Surpass II.

Thanks,