RE: u-can-do 60
 

Hondalan,

Just to present the other side, I'm having complete success with my OS 91fx engines so you shouldn't give up hope.
I'm running three OS 91fx. Two of them are on UCD 60's with stock mufflers and the 3rd is on a Hobbico Extra 300 AWARF with a Bisson Pitts style muffler. All fuel tanks are in their stock locations and no regulators are being used.
Assuming that you already know how to adjust engines I can only offer two small suggestions.
1. Make sure that remote needle valve body is torqued tightly against the fuel nipple that goes to the fuel line to the tank. If you can rotate the nipple with your fingers its not tight enough and will leak and make adjustments difficult if not impossible. Mine was loose from the factory.
2. If fuels leaks out of your carb make sure your servo throw is great enough to completely close the carb (without binding the servo) when you shut off the engine. I have not found it necessary to lower the tank.
Even though Autoguns dislikes the OS 91fx, he was correct when he suggested: I tried 30% heli fuel in an OS 91fx but the engine sounded so ugly that I landed it and drained the tank.
I only use 30% heli fuel in my Saito engines.

RE: u-can-do 60
 

This thread was buried on page 4, thats the obituaries.
Matt, your on the carpet now, wheres the UCD maiden report? Don't leave out any detail, we want to hear about the flat spins and blenders.
J Dubya, the weather in Alaska must be co-operating or else your outa planes.
Dave, any forum, any catagory, you got somthing going on. Curious devil aren't you.
Roger, been following different posts on your success. Reaping the fruits of your labor I see. Great work and enjoy!
Rocketman, My next purchase.....30% heli, oh yeah!
Stoney, chin up.
I wish I was getting air mile credits on this UCD. Last night after traing was over it was UCD time. Low inverted pass, harrier attitude, sweet. On climb out, still inverted, angleing away from the field, fueless over the treetops. Whoa! Turned it over, banked right (at this point any other plane would have been done) still had enough float to go down field, with another right bank, brought it right in. Butter! Joe

RE: u-can-do 60
 

Hey Joe,

You know guys, I have said about all I can say about he UCD 60. It's still one of the most enjoyable airplanes in my hanger to fly. I have become a much better pilot as a result of flying it, which has helped me on my other airplanes. Mine is still in near perfect condition, though I have been putting it through the paces. Really, I'm flying the stew out of it and so far so good. I just adjusted the valves on the 91 Surpass, which really needed adjusting. I experienced a noticeable difference in performance after the adjustment. Like I said, I have about 125-140 flights on it by now, and it still gets much attention at the field. At least three others have purchased the same plane because they like what they have seen with mine, and another pilot who has ones well. This is just a very hard airplane to beat based on the design. You can't help but like this airplane.

RE: u-can-do 60
 

Ya the weather has been good ,however the wind has been kickin the last few days..It wouuld take me 6 months to run out of planes ...LOL...I could bury 1 a week at that rate......good news I did finsh the Sukhoi ...I took it to the field to just run in the engine ...after the first tank ,it was running so good I couldn't take it any more so I taxied it out and took it for it's first flight...with a couple of clicks on each trim it was flying great....on landing the grass was about 4"s deep at the downword end of the field and it went over.....No damage but it looked bad....the next few flights went real good ...the 61fx was runing good on 20/20 ...On the rest of the landings I switched to high rates as soon as it touched down .... no more nose overs....any way the UCD3D is ready to go ......I'll take it next trip....I'll give you a report....JW

RE: u-can-do 60
 

I talked to Great Planes about my problem and they told me to put a fuel pump on the engine so that the fuel would not drip out of the carb and so that the siphon effect would not flood the engine when it is running. I have had several people tell me this. I called every hobby shop in the area and no one has the pump in stock. So now I am waiting for it to come in late next week. I am hoping that someone in my club has one laying around that they will let me borrow so that I can try it out.

RE: u-can-do 60
 

Its all-ways good to try , be-fore you buy one.....JW

RE: u-can-do 60
 

Instead of using a pump like the perry, I'd recommend using a regulator like the cline. Pumps can be tricky and finicky to adjust. With a regulator there is no adjusting. The carb will only get fuel when it demands it therefore no flooding when the engine is not running. I use one with my Saito 100 on my UCD and it's worked flawlessly. There are a lot of other people with UCD's that use a regulator.

RE: u-can-do 60
 

Money well spent. Joe

RE: u-can-do 60
 

I am putting togather a UCD 60, with a Magnum 91 FS. I know that a YS is better, but that is what I have.

What about the fuel tank location? It is nearly an inch higher than the carb. Mounting the engine sideways would solve the problem, but looks would suffer.

Any suggestions?

RE: u-can-do 60
 

If you want to modify the hole in the firewall, the tank will drop another 5/8" I don't know how that effects the motor mount in relation to the firewall hole. If thats the case then pull the tank back an inch and just let the fuel lines go through. There is a 1/4" section to cut off the first former to allow for the drop and just glue another on 5/8" lower. Joe

RE: u-can-do 60
 

Guys...:)

It had gone a bit quiet here for a while..:) suppose were all outdoors more ..oneway or another ...fuchas, geraniums...arrrghhh...nearly as bad as drapes:)...

Been loking at Rogers super Pitts ...JW pointed something out to me though [:-]....Transport.[X(]..i'm struggling a bit now...let alone with a bipe ...not sure what to do 'bout it yet though...

Had a sniff at CH's " CAP X " ...Towers price for a 1.60FX is allmost to much to bear...dollar rate is still good ....the more ya spend the more ya save .:)

Finished th cyclone.. bar canopy and change of sevo's i think..Joe's shown me the light shining from digitals .....JW..had to make a header pipe for the 502 EX ...O.S must have stopped making the pukka one ..set all the house smoke alarms off braising and bending the 10mm pipe...:) not a popular chap:) .pic's for ya..Thanx for help anyway JW;)

Bank holliday w/end ...hence weather is iffy..;)..Dave

RE: u-can-do 60
 

Dave, your quite the plumber, impressive. No holiday here, 7:00 am till ? pm as usuall, including Sunday. They all end in day, don't they? Winds ripping right through here today, makes me feel better for not getting out. The boys will be putting the float together for Monday's small town parade. Going to miss that as well, I need a life!!!!

Just looking at the GP Super Stearman 1.20 $500.00 will put a ZDZ .50 gasser in it, 3.15 lbs W/ignition.

Been reading up on the RCS 1.4 gas for the UCD. Its been done and flight reports are great.

Got a price on converting the UCD to electric as well. Roughly $600.00 would wrap it up with a Hacker B50-XL 6-7.1 gearbox, Mas 70 speed controler, and a 6S4P Thunder power LiPoly pack. And all this electronic wizardry will spin a 20/8 E prop in a hover at under half throttle. All these options are to eliminate one nasty habit....nitro.
Happy Holiday to all. Joe

RE: u-can-do 60
 

Hey guys, here are a few new pictures of the Pitts in flight. Joe, the G.P. Stearman is a beautiful plane. One of our members has one and it's just absolutely beautiful. I think a 50 cc gasser might be a bit much for this plane though. I have had my Pitts out several times over the past few weeks. I have finally got the balance between the rudder and the throttle to get as good straight take off. It really responds on the ground much like a cub - will ground loop in heart beat if you don't have the right touch on the rudder and the throttle. I would suspect the Stearman would act about the same with a 50 cc engine........... I would look at maybe a 40 cc IMHO.

RE: u-can-do 60
 

Roger ..:)

Your second picture is now wallpaper...and i'm looking to see if i can get a u-haul or suchlike overhere....lovley..;)

RE: u-can-do 60
 

Roger, I originally looked at the ZDZ 40 and noticed that the 50 was only .22 oz. more in weight. You know how I think. The Stearman specs a 120 4 stroker at 35.3 oz. W/muff and still requires 18 oz. additional in the nose. Thats 3.31 lbs. and the 40 comes in at 3.15 lbs. W/ignition. With the right prop, who knows? Joe

PS. a buddy has the 3W24 and is great on his 11 lb. Extra Fun, but this plane is 5 or 6 lbs more.

RE: u-can-do 60
 

I saw a post about a wing folding up on the UCD-46. This was one of the reason why I fiberglassed the center section of my wing on the 60. Just thought I would pass this along. I would suspect the 46 and the 60 construction design would most likely be about the same, except the 46 would simply be smaller. I could be wrong, but thought I would mention.

Dave, thanks for the compliment on the Pitts. The Pitts is without a doubt my most favorite airplane in the hanger, but it's also the most challenging to take-off and land. It's a handful, but I keep getting better at it and the DA-50 is just plain awesome.

Joe, wasn't aware that the Stearman required dead weight on the nose. Arrgh ! I would much rather have engine weight than dead weight any day. Just keep this in mind., The DA-50 on my Pitts is very powerful and mine weighs in around 17.5 to 18 lbs dry. Put a 50 cc on the Stearman and look out for the wild thing.........:D

RE: u-can-do 60
 

On a thick wing like the UCd it only takes a little hole in the mono and a little speed, look out! On the SS, its just something I got rattling around upstairs for now. Does look slick though. Joe

RE: u-can-do 60
 

Gents ...:)

Disaster..[:-]..Tears..[:o]...bewilderment ...just been out to the field ...beutifull summers day...birds singing ....THE GATES WERE LOCKED :(...whats happened [X(]...the fullsize boys were buzzing arround ... Mr Blair will get to here about this ...came home distraught...she sez..." Go and find something to do in the garden then ....O.K..garden is looking nice...:)

RE: u-can-do 60
 

Update: went to the field yesterday after attending an all electric event in the area and was ready to maiden a few planes. As soon as we got to the field it started it raining. the saga continues next week.

at this rate I will schedule the UCANDO's maiden for July 2007 [&o]



matt

RE: u-can-do 60
 

I like the picture ...with the UCD3D in the backdrop.....JW

RE: u-can-do 60
 

Matt, aren't there certian steps to be taken when storing a plane over extended periods? If my memory serves me, that UCD purchase was in early November? Joe

RE: u-can-do 60
 

Rain, 54 degrees, its like Alaska. Gave my UCD some TLC this afternoon. New fuel lines and tightened up all those line clamps, flushed the tank, checked the regulator and backflow valve (very tempted to take the regulator apart, but my better judgment kicked in) adjusted the valve clearance on the rocker arms and installed new valve cover gaskets. Had the cowl off, so I figured that I would take advantage of it. Considerable play in the rocker clearance, should realize a little boost in power. I need some weather so I can finish off this 4 stroke fuel and try some heli fuel. Nice since Friday and now, that I'm finally finished work, it rains. Pulled 48 hours in three and a half days. I hear my couch calling me. Joe

RE: u-can-do 60
 

Not really much to it. I took mine apart when I had a deadstick landing a month or so ago. Was afraid that my cline went bad. Nothing but a flat piece of some type of bladder material. Very simple yet effective. The deadstick was caused by a loose fueltank stopper. My cline still works wonderfully. I really don't see any reason to take it apart though unless you experience problems with it.

RE: u-can-do 60
 

Coo, just snooping around for any forign debri. Sometimes I'm too thorough on the little stuff and the big stuff runs right past me. Joe

RE: u-can-do 60
 

I know, I know [:o]


this weekend looks promising!


btw guess who is the newest moderator here at RCU?!! [8D]