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Post  NEW222 on Thu Nov 21, 2019 9:48 pm

So I thought I brought this up before, but cannot find anything. Last year, I picked up this plane from the estate of a fellow modeller, not knowing what it was. Turns out it is a Goldberg Skylane 42. Wing and horizontal stab/elevator were all white plastic covering that needed a cleaning. Fuselage was white, red, and black dope that was badly cracking. So I had to remove it. Sanding was not going well, so I resorted to a razor blade. Windows were cracked, front nose gear was ripped out from the former. first step was clean the wing and tail. Second was remove what was left of the windows and make templates. Second was strip the fuselage. Turned out not too bad with a few gouges here and there. I used lightweight spackle on the fuselage before priming and painting white to match the wing and tail. It is good from far, and far from good, has a flow indicator or two, but adds character. Very Happy If it survives this coming year, I may disassemble it again, and give it a nice paint job. I would like to repaint it the same as he had it in his honor, but I had lost a whole bunch of pictures and I no longer have anything of it in its prior state. So, now to add a stripe of sort to it. It was bare, so I installed a Futaba S-148 servo in it, and the mounts and control horn all lined up great! Besides that I need to install a battery, receiver, and a Golden Bee to match what the plans have listed. This should be interesting as a single channel rudder only model for someone learning to fly nitro RC in 2020.....

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Post  NEW222 on Thu Nov 21, 2019 10:29 pm

Also, any tips, help, opinions or experience with single channel planes are also welcome.
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Post  getback on Fri Nov 22, 2019 5:25 am

NEW222 wrote:Also, any tips, help, opinions or experience with single channel planes are also welcome.
Looks good from here , Left is Left , Right is Right (single channel) Kim would bee the one to tell you all he knows about flying them and maybe Rene RC Plane
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Post  DrCox on Fri Nov 22, 2019 7:38 am

From where I sit, that is a very nice restoration job. I was always, back in the day, going to fly single channel with the Ace Pulse Commander system, but alas too expensive. I'll bee following your progress as a single channel rudder plane. Thumbs Up
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Post  Kim on Fri Nov 22, 2019 8:52 am

Probably be a good idea to get Tony in here for some comments, he's also logged a LOT of rudder-only flying.

Most of the stuff you need to know is on the plan sheet if you have it, but most of the rules apply to both rudder flying and others with more controls.

You can treat it as a free flight plane as far as it's set-up:  It's important to have the CG correct, which is usually a bit past 1/3 of the chord back from the leading edge, AND something that's often neglected---the "left and right" CG.  This helps the plane fly true and straight when you're not giving it a control command.

I like to sit the plane on a high table or shelf, and sight it head-on from ten-twenty feet.  This makes it easier to see if the wings have any twist, and also how the tail lines up with the fuselage and wing.

You certainly don't need much throw in the rudder...at least for the first flights.  A heavy input of rudder can roll the plane into a dive that can't be saved.  An 1/8th" in each direction will probably be enough.

The engine is usually mounted with some down and right thrust to help control the torque.

If you've got a hill with the proverbial "tall grass", some powerless glides might be a good idea.  Besides that, a BIG field is almost mandatory.  This will allow you to fly the plane without worrying about dodging obstacles...remember that any control input can cause the plane to dive, and it has to recover without elevator input.  Right turns are generally more friendly than left turns because the torque acts as a buffer.

With a huge field, you can let the plane glide down with just tiny inputs to keep it close to you.  This is all felt out in the test flights.  

Another GREAT idea is to test the engine on the plane to see how much fuel it takes to run it for 30 seconds or so after start-up, and do that for the first flights.  Trust me that 30 seconds can be a LONG time with a cranky-flying plane!

Hope this helps, I'm sure Tony would have more tips.

I "cheated" with my Goldberg Skylane back in the 1980's...adding an elevator to the little plane.  I also copied the paint scheme from the Skylane my brother flew with the Missouri Highway Patrol back in the day:

Carl Goldberg Skylane 42 2_79

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Post  NEW222 on Fri Nov 22, 2019 4:17 pm

Thank you all for the comments, help and replies. Kim, yours looks amazing. I had actually thought that was the real deal in the airport pictures. I also like the idea of timing it for a short runtime at first to see how it handles. Unfortunately, I do not have anything close for a hill to throw it off of. And lastly, I really appreciate the tips on the elevator control movement. I would have personally tried to get the max throws I could out of it! Shocked
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Post  GWILLIEFOX on Fri Nov 22, 2019 5:45 pm

O,Carl Goldberg Skylane 42 Cgsky010
Carl Goldberg Skylane 42 Cgsky011
My Fox 049 single channel Skylane.  Hundreds of flights.  Rudder only, Babcock escapement.  Trim it glide flat and straight.  If it won't fly without the radio, it won't fly with it.

Rudder only ships were trimmed to fly with a slight climb.  Upplying  rudder will cause a turn, but you can't just hold the rudder.  As the plane turns it will bank steeper and steeper dropping the nose.  So you must learn to apply rudder in short bursts.  

If you hold the rudder and get the nose down and apply opposite rudder, the plane will stop turning and the nose will be down.  This causes a lot extra airspeed and the ship will zoom up.  Learning to control this zoom will let you do rolls, loops, immelman turns, and wingovers, all with no elevator.

If you want to fly faster in a straight line, give it right the left rudder, reversing just as the nose drops.  Kind of like tacking.  

Don't let th3 plane get downwind.  You'll have to have mastered tacking to ever get it back.

Years of flying in a few sentences.
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Post  NEW222 on Fri Nov 22, 2019 6:17 pm

Thank you for the advice and tips. Greatly appreciated! ANother thing I learned now. Do NOT hold rudder in one direction. Definately something I would have done.
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