RE: U Can Do 3D
 

Giddyap!!!!!! It will handle the wind and make for great fun, just use some caution on a cross wind landing. Remember, with rudder application it will drop the opposite wing and go to the wheels. Get it up high and try the rudder just to see how it reacts. For warned is for armed. Good luck, Joe

RE: U Can Do 3D
 

well i maidened today and you were right cumn thru (great fun!!!!!).i am just out of my trainer and i never expected a plane to fly like this. vertical was great and i wanted to see for myself but i need 3 deg right thrust. but man what a great plane. the more i flew the better my saito 100 ran. i checked the idle after my #4 flight and it was idling at 2100 smooth. cant wait for tommorrow.. will start adding to my travel adj after tommorrow. good day!!!!

RE: U Can Do 3D
 

You guys that are waiting for the wind to die down before you fly really crack me up. If you guys that don't like wind lived where I do you would have to find another hobby.

On a different note the Kavan starter is the way to go.

Knife edge flight with mine is great, it only needs a little elevator to maintain. As far as the spins are concerned this plane will not flat or do a knife edge spin. After flying mine all summer about 8 gals worth I've come to the conclusion of 3 things.
#1 it hovers great
#2 knife edge flight is great
#3 this is the first plane I've had that will do a knife edge loop well.

This plane has a lot to be desired in my opinion, but for the money it's a good throw in the truck knock around plane.

RE: U Can Do 3D
 

WILL THE MAGNUM 80 4 STROKE BE OK FOR THE UCD 60? ALL OPINIONS WELL TAKEN.

RE: U Can Do 3D
 

well cap232cm i know the bugs in mo are way bigger but i dont think the winds are and i will get better. thanks for the encouragement.

RE: U Can Do 3D
 

A guy at our flying field has a Magnum 80 in his UCD 60. Flies it pretty good, but most 3D Manuvers are not possible. Plus we're only about 400-500 ft above sea level. The Magnum 80 has about as much power as most 70 size four strokes, but it's a good engine non the less. I will I had one to put in my Something Extra, but I may try a Magnum 70.

RE: U Can Do 3D
 

I have to disagree with you CAP232CM. I have a UCD 60 with a YS91fz and it will do staggering flat and knife edge spins as well as blenders, waterfalls, etc. The only thing I found it really has a tough time doing are Cobras and such because of the wide wing and proportionately small ailerons. But overall it is a terrific first 3d plane or a good standby to keep in the hangar for seasoned pilots.

RE: U Can Do 3D
 

CAP232CM

I got my UCD .46 to flat spin inverted. I do it to the left side. I have not got it to flat spin while upright.

JC

RE: U Can Do 3D
 

Maidened my ucd 60 a month ago, still very happy with this plane!
But currently i'm trying to tune it for best 3d'ying. Several questions:
1. I'm using the Cline on Saito100 and when I quickly move the throttle stick from full throttle to iddle the engine does not drop the RPM immediately, there is a noticeable delay after I lowered the throttle and corresponding RPM drop. Is the fuel tubing between the carb and cline controller too long? It is about 1/2 inch long...and it seems no way to get it shorter. This is only complain to cline system, everything else is awesome (full throttle, transition and iddle).
2. In hover it attempts drop to the canopy...how to resolve this? I mean the tendency (not to apply some down elevator :) )? In inverted flight almost no down elevator required to keep horizontal, but in normal flight a little up elevator is required. I feel there is something wrong with CG or engine vertical thrust angle...or may be wing incidence? I started with 4-7/8 CG for first flights and then shift a little for each flight. Now it is about 5".
3. As to CG location, it seems I'll have to move it more aft. Now I can see how the CG shift affects the flight but cannot figure out what should I change on landing. What is the difference between landings say with 4-7/8CG and 6"CG?

Would like to thank all you guys who posted their findings on improving the construction of the bird in this thread. I read complete thread and it seems implemented almost all improvements you suggested.

thx

RE: U Can Do 3D
 

Crank,

Are you flying the 60 sized or the .46? If the .46, I have logged my observations on my website at www.johnecramer.com.

I also need up elevator trim for level flight. Even when I had the CG way back >6 inches. Moving the CG way back harmed the hover but improved the elevators/parachutes. It caused a wild coupling of the rudder and elevator making the airplane go berserk when trying to control a TR.

My UCD pulls to the wheels right now in TR. I am going to try a little up-thrust.

Landings at 6" were still OK for me.

JC

RE: U Can Do 3D
 

Crank, not sure on the delay in idleing down, but the Cline can get right on the carb if your elbows are glued on in relation to this position. I checked it before I glued them. If they are not in the right position, and are already glued, then you may not get this close. Just wondering if with the length of fuel line you have now, maybe the delay is caused by a little bit of pressure in that line, untill it bleeds off.

As far as hover goes, mine favors the canopy. Now, just for clarity, does it pull to the canopy and want to go over? Or does it hang, but just at an angle?

No elevator in inverted flight means that you are at the CG limit. Any further back then it will climb.

In normal flight, if you have to hold up elevator, check your ailerons, they may be angled up from the center line of the wing and that will force the nose down. To start, shorten the linkage one turn on each side and give it a try. Also notice that, with this change, it will affect inverted flight.

As far as CG and landing goes, you will notice the further aft you go, the more sensetive the elevator gets. It will develop a tendency to porpoise the further back it gets and if you push it back to where you need down elevator to land, well then, your my hero, cause that far back is not for me. Good luck, Joe

RE: U Can Do 3D
 

Joe
Not sure what happens in hover if I don't correct it applying some down elevator, will try. About landing with the CG too aft, do I need to keep higher speed on landing in that case? Just asking because since I moved CG from standard manual's position to its current position (not sure where it is exactly now, but think it is about 5" ) I started to experience difficulties on landing and want to figure out what I should do different on landing. Landing with 4-7/8CG was so easy, it just landed almost itself.

RE: U Can Do 3D
 

Actually, it will land easier with an aft CG, just needs less elevator. Too far back and it gets touchier. If you come in hotter, make sure you have plenty of fuel, cause its not going to land unless you force it down. This frame needs almost 0 airspeed on touch down. Picture the plane landing on a piece of tissue paper, thats all it takes. Its the ones landing hotter that are knocking the LG off. Not knowing what your used to, this is no trainer or sport plane and will basically float in and touch down wherever you target. I'm at 5-5/8 inches back. Good luck and enjoy, Joe

RE: U Can Do 3D
 

crank i just finished my ucd60 and my cg on my first flight was at 5.25 and man am i impressed with this plane. im fresh off my trainer and man this plane lands just like cumn thru says you just need to slow down and let it float down and no one has ever said but this plane taxies better than i ever expected on my blacktop runway. a also started with min throws but found i can start opening them up a bit. good luck also since im self taught and i havent anyone around here to ask but does chicken sticking my saito 100 backwards to start it hurt because if i crank it counter clockwise it starts backwards and if i crank it backwards it starts right. thanks you guys

RE: U Can Do 3D
 

gjeffers,

I start my Saito .91 the same way. When she is ready to fire I get a kick-back if I try to prop it though forwards. I pop it backwards against compression and she kicks forwards and starts. Shouldn't hurt anything.

JC

RE: U Can Do 3D
 

I have been trying to do a harrier with my ucd3d 60 with no success: the wing wobbles to left and right making the airplane very unstable and impossible to control.
I am using an OS 90 FX, APC 16x5, and started with the CG 5 1/2 inches from the l.e. ... I have gradually added weight o the tail and now the c.g. is almost 7" behind the wing l.e. - the wobbling is less intense, but still unstable and difficult to control.
I have my good old morris hobbies sudokhoi .40, and I can perform a very decent harrier, and even do harrier landings under total control...
Has anyone done a good harrier with the ucd3d? I would apreciate if you could share some tips on how to set up the plane to achieve a good harrier.

Thanks and happy flying!

RE: U Can Do 3D
 

Whats the best way to learn how to prop hang? Please help!!

RE: U Can Do 3D
 

Rotoflyer,

I have tried to get my UCD .46 to harrier with little success. I moved the CG back, ensured elevator and aileron deflections were equal, and mixed in reflex in my ailerons. The result was a decent elevator and parachute, but no harrier. Once you try getting the nose elevated she goes berserk.

I pretty much gave up on the harrier and other stalled maneuvers with the UCD. It has a strong rudder and is good for the rolling stuff like rolling circles and harriers. It is also supposed to be a good TR ship, but I am still working on that.

JC

RE: U Can Do 3D
 

Denno,

I learned how to torque roll this year and here is how I did it:

1. Do you have realflight G2? I have a couple of airplanes that I can send you that are good TR trainers. The airplanes that come with G2 do not model the TR very well. I have a couple of airplanes (*.pln files) that do. They are quite forgiving and TR very nice.
2. Make a foamy, like a foamyfactory.com Yak. Put a brushless himaxx and use 3-cell Lipos. Excellent TR trainer and when you screw up there is little if any damage. See mine here: www.johnecramer.com
3. Transfer the above skills to your glow/gas birds.

It is important to note that you need to build reflexes to be able to TR. Just like riding a bike or flying your airplane in forward flight. If you have to think about it - it is too late. The best way to build these reflexes are with a lot of practice without losing your airplane in the process.

JC

RE: U Can Do 3D
 

Rotorflyer - I know it's obvious but check your lateral balance and engine thrust line. I had to add 3 washers behind my mount for thrust angle with my YS 91. Also try mixing some spoilerons.

Denno - I practiced alot with the sim. I use Aerofly because it has much better physics than G2. G2 is flawed in many ways especially when it comes to 3d and high alpha. Then just start practicing high and get comfortable in the "real world" and gradually get lower and lower. The problem with a foamy is that the wing design causes the plane to behave much different than a "real one". And also the smaller the plane the more difficult it is to hover because of the smaller sweet spot and less physical size to telegraph where the plane is going to move. Picture using a 40% plane to practice hovering, you could see everything at 50 ft up and easily tell where it is going to go, whereas a .40 size would have to be at 20 ft to have the same visual detail. That is why the UCD60 is great, it's big - cheap - and a great performer for the beginner and experienced 3d pilot.


P.S. Just in case you couldn't tell I love my UCD!!!

Brillon1

RE: U Can Do 3D
 

I don't have any sims, how much is aerofly it looks a cracking sim.

p.s thanks for all the tips. :D

RE: U Can Do 3D
 

Look here > www.OhioModelProducts.com

RE: U Can Do 3D
 

i'm looking to get aerofly in the near future so look out everyone i'll be on the loose

RE: U Can Do 3D
 

You won't regret it, it is spectacular. And there are a ton of free downloadable planes. Check this site out.
http://www.rc-sim.de/dl_engine_eng/i...449bda11ac6bc6

RE: U Can Do 3D
 

Just ordered mine today. They said i can use my G2 controller:D .OMPs message board