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Goldberg Extra 300

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Goldberg Extra 300

Old 12-21-2016, 03:26 AM
  #1676  
OldScaleGuy
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unodinoi, i think i am the Steve Gray Beard is referring to. Will do some checking, i think i have the fuselage former templates that you need.
Old 12-21-2016, 03:44 AM
  #1677  
unodinoi
 
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Originally Posted by OldScaleGuy View Post
unodinoi, i think i am the Steve Gray Beard is referring to. Will do some checking, i think i have the fuselage former templates that you need.
It would be great. My Christmas gift
Old 12-21-2016, 06:12 AM
  #1678  
OldScaleGuy
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Please let me know your e mail address, i will scan and send one former as a test, then the rest if it works ok. Much cheaper than mailing from the U.S. to Europe....
Old 12-21-2016, 08:00 AM
  #1679  
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Ah. I see the difficulty now. I often traced all the parts onto the plans. But just as often not. So no ideal if I have usable patterns or not.
I'll look when I get a chance.
Old 12-21-2016, 11:30 AM
  #1680  
unodinoi
 
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Originally Posted by OldScaleGuy View Post
Please let me know your e mail address, i will scan and send one former as a test, then the rest if it works ok. Much cheaper than mailing from the U.S. to Europe....
Hi OldScaleGuy, my email address is stdellas@libero.it
Thank you very much
Old 12-21-2016, 12:55 PM
  #1681  
OldScaleGuy
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First test scan sent. Please let me know how it does for you.
Old 12-27-2016, 06:49 PM
  #1682  
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I was wondering how this kit/plane compares to the Great Planes Extra 300S 60 kit. I know this plane is bigger but is one kit better then the other and how about the flying ability? I was thinking about getting the GP's kit but should I look for one of these?


Old 12-28-2016, 03:28 PM
  #1683  
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Originally Posted by OldScaleGuy View Post
Here is a kit available for any one looking (not mine, just passing information)
https://www.rcgroups.com/forums/show...IPPED%21%21%21
I got this kit.
Old 12-29-2016, 04:16 AM
  #1684  
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Good for you! Enjoy!
Old 12-29-2016, 04:24 AM
  #1685  
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So what changes if any should I make? I'll get a fiberglass cowl. It will have a gas engine not sure what one yet. I started reading through this thread.
Old 12-29-2016, 04:36 AM
  #1686  
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I would suggest getting the fiberglass wheel pants along with your cowl. One important point (in my opinion) is to use 3/16 aluminum landing gear, it is available from TnT.
http://www.tntlandinggear.com/
Old 12-29-2016, 08:24 AM
  #1687  
Gray Beard
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This is a very old thread but the plane is such a good one it will stay alive. Mine was built about 1986 and I'm using the YS 120 which was state of the art when it was installed. Through the thread you will see the then new Zinoah 20 cc used then the DLE. Lot of nice choices these days and gas is the way to go.
Old 12-29-2016, 12:29 PM
  #1688  
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The Goldberg 300 kit is one of the very best flying built up fuse airframes in it class
I was at the field years ago when one of my good friend was flying one
The kit called for a 60 size engine but he had an ASP 1.08 two cycle in it
They do require more power than a 60 or 61

He was doing the nose up -rotating the plane on its access and we were just starting to see that manuver being developed at the fiield
We had the pleasure of watching Yuri haguchi on L I N Y who is responsible for designing some of the 3D manuvers used in competion today
Yuri is as good as it gets at flying RC in competion sometimes just inches off the runway

Enjoy
Old 12-29-2016, 01:13 PM
  #1689  
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Thanks for the feedback. I will get aluminum landing gear for it. Are there any structural changes that should be made other than whats needed for the landing gear? I noticed some talk about the fuse area in front of the wing. I'm a sport flyer and don't fly 3D but it sounds like the plane can do most types of flying.

I always wanted an Extra 300 kit but kind of gave up till I attended the Red Bull Air race in Indianapolis last October. After that race I started looking and found this thread.
Old 12-29-2016, 01:35 PM
  #1690  
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Best of luck with your Goldberg Extra 300 build!
Sadly, mine was lost a few years back due to an aileron servo failure;-(
A 20cc gas engine is the ticket for the Goldberg Extra. My first choice would be the DLE 20RA, which is cheaper than a DLE20 when you factor in a Pitts muffler for the standard 20.
My Extra was built with dual elevator servos. It was very easy to lay out a mirror image arrangement with the servo pushrods.
The Goldberg Extra is not a 3D machine. It would take some major mods in the control surfaces to go there, also it isn't built quite as lightly as most modern Extra 300 ARF's, but the Goldberg Extra is one super nice flying airplane!
Pete
Old 12-29-2016, 04:36 PM
  #1691  
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This old design was developed for IMAC, not 3-D. The reason for the added mod just in front is because it's the weakest point in the plane and installing an engine bigger then the original .60 two stroke adds stress in this area. Every time the plane is landed there is usually a jolt and it is felt by the plane in the weak area. Mine lasted for almost two decades though before the front of the plane fell off.
It's not really a big mod, it's just installing a better doubler.
Your call, look at that area as your building.
Old 01-04-2017, 04:28 PM
  #1692  
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I should get me kit tomorrow. Just finished reading all 68 pages of this thread, lots of good info. The DLE20RA is tops on my list but I don't care for the sound of it. What about the 20GX? I will trace the die cut parts and might just cut a kit to build and keep this one intact.
Old 01-04-2017, 04:36 PM
  #1693  
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What about an FG-21 Saito?
Old 01-04-2017, 06:05 PM
  #1694  
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By all means make a template of every part in the kit. Nice dark ones on butchers paper. If you can get them on disc it would be great to post them as a file right here so we can all have a good fresh copy!
Old 01-04-2017, 06:17 PM
  #1695  
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I second graybeard, on both suggestions
Old 01-06-2017, 06:15 AM
  #1696  
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Got the kit. Looks like it just came from the factory.
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Old 01-06-2017, 10:34 PM
  #1697  
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Recently just picked up a half complete kit - Any one every put flaps on?

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Old 01-15-2017, 04:43 AM
  #1698  
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Never heard of any one adding flaps to this one, it slows down very nicely without them but it will interesting and some added fun.
Old 01-15-2017, 05:32 AM
  #1699  
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My CG Extra is more than two decades old and never been damaged possibly due in part to my using most all of the strengthening tips etc. suggested in this thread at one time or another, including the one for the fuse recently one mentioned by Grey Beard. Over the years it has had several engine changes starting with a .60, .75, .90. glow engines and finally now with a Ralph Cunningham lightened with CD ignition Zen G23. With an AUW of 9.5 lbs it's a real joy to fly with absolutely no bad habits and like most Goldberg designs, it lands like a trainer.

There is a saying "The devil finds work for idle hands" so at one time I played with the idea of building new wing with thicker balsa sheeting as the stock sheeting is quite thin and fitting flaps, but was talked out of the idea by my flying bud who reminded me of just how much it can be slowed for landing. That was the end of that thought but it would be interesting to see someone give it a try.

Last edited by karolh; 01-15-2017 at 05:48 AM.
Old 01-15-2017, 07:41 AM
  #1700  
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You could experiment with flaperons if your radio supports it and you have at least a 6 or 7 channel RX. I did that on a 4*120, With them deployed I can have it just hang in the sky.

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