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Building Tips and technical articles. => 1/2 A building. => Topic started by: Jeremy Chinn on November 19, 2023, 06:49:16 PM
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For the recent Ringmaster Flyathon, I built a pair of Baby Ringmasters for my son and I to fly. This would be his first model (yeah, kinda crazy choice in hindsight) and my first CL model in probably 15 years.
I started by tile printing the plans off the Outerzone website. I printed a couple sets so I could use a set for templates. I then stack cut all my parts (for two builds) on my jigsaw and finish sanded them.
From there, I was able to frame up the first one very quickly. The second build was a little quicker as I'd just finished one. At that point, I had two framed up and finish sanded in two nights of work.
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Next up, I moved to covering and finishing. I've always been more of a film covering guy, so these were covered with partial rolls of Monokote I've got left in my stash.
This also seemed more appropriate for the abuse they are going to see.
In all, I had them ready to fly in 5 nights building after work (excepting a little time for soccer practice).
Power came from a Cox TD.049 and a Medallion. Both fed by 1/2oz tanks.
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We made it to the flyathon and had a great time. Though it was pretty windy, we got a bunch of flights in on both planes.
I have them on 35ft spectra right now, but want to try them on 40-42ft as well.
My buddy Lester had the honor of the maiden flight on the purple/silver plane.
Finished weight was about 6.5ozs for each.
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Nice! I especially like the Purple Pilot Eater! The Medallion is an excellent choice for a very capable plane. Hope you get lots of flights out of your "one-week miracles...."
The Divot
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Great to hear you guys got your flights in. Planes look great also. D>K
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That takes me back in time. As kids, we had a blast with those Baby Ringmasters, Baby Flight Streaks, Lil Jumpin' Bean, etc. Cox Golden Bee, a pint of fuel, and spend a few hours on a Sunday afternoon having a good time.
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Very nice builds! I suspect they flew good, too.
Is that translucent purple covering "Ultra Coat"?
Andre
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Jim, I had always wanted a Jumping Bean!
Andre, it might be Ultracote or Monocote, I don’t remember which.
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Hello,
I am new to this forum, and was just browsing and found this topic. I saw this topic, and thought I'd introduce myself and throw in a photo of my Baby Ringmaster that I just finished building. A am excited to be a part of the community and hope I can be of help.
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Nicely built and finished Ralph!
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This model started out as a PDF plan downloaded through the OZ website. I converted it to DXF format to work with AutoCad and scaled it up to a 21 inch format, then decided the TD 051 was too much for such a light model, and more specifically, my advanced age and unknown ability to not get dizzy and fall on my face when I tried to fly it. So I upscaled it to 25 inch wingspan, and the only modifications due to the change in size was to go back and redraw the spar cutouts in the ribs to accommodate 1/4 inch square spars for the wing. I had just gotten a laser cutter, and was able to load the DXF file directly into the controller program for the laser (lightburn) and make the cuts for the individual parts including the ply doublers for the nose. The beauty in doing the laser cuts, is they are all generated from the original CAD files, and I knew they accurate because everything fit properly in AutoCad.
The build went uneventfully and the result is what is pictured. I will say that covering a lightweight 1/2 plane with monokote is really much more difficult than doing a larger C/L or RC plane. I now have all the parts cut for its big brother, a 42 inch Ringmaster for my Fox 35, and to follow it with the Daddy of the group, the Ringmaster Imperial, but those are for later times and posts.