Caproni KB-11A (oz16479)
About this Plan
Caproni KB-11A. Free flight scale model for rubber power.
Direct submission to Outerzone.
Quote: "CAPRONI KB 11A
16” SPAN NEO-DIMER
DRAWN 30 MAY 2018
CONSTRUCTION:
WING: Typical Dimer style wing with sheet ribs and 1/16” sq and sheet balsa. You’ve gotta love the elliptical wing shape. The high wing setup reminds me of the Lysander. I got carried away with the cowling and it probably would have better been built with fewer discs of balsa in the front and a nice nylon prop button from Peck-Polymers.
FUSELAGE: The box technique is used in building this fuselage from 1/16” sq stringers and 1/16” sheet formers. For canopy and windscreen I use plastic from the clear bakery boxes that the cookies and donuts come in. Just have to remind my wifey not to throw them out!! The windscreen is made using paper patterns to fit the area and once I have the proper fit, I then cut out the plastic using the paper pattern.
EMPENNAGE: The horizontal and vertical surfaces are made from 1/16” sq and sheet balsa flat on the building board. This should make a nice flying model with the high wing. You probably won’t fine another one at the flying field.
Regards,
Tom Akery/Sky9pilot"
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User comments
Is it just me ,or are the wing ribs missing from the plan ?Mike Jones - 28/12/2025
The plan and the text contradict each other. The plan states a cracked rib construction using 1/16" sq balsa for the ribs and the text states ribs from sheet balsa. Most likely the correct method is on the plan.
pmw - 28/12/2025
The other name for ugliness is character. This only needs a second wing to be perfect, look at the Lysander and dare to disagree :)
Miguel - 29/12/2025
With the cracked rib wing constructions there is no wing rib patterns. The leading edge is laid in place with the trailing edge. The bottom of the rib(1/16" SQ) strip of balsa. Once the bottom of the wing is laid out, add the spar from sheet 1/16" balsa determine the thickness at the root by desired wing thickness. The upper rib section is made using 1/16" sq stringers, attaching the stringer at the trailing edge and laying this over the spar and gently cracking it to the leading edge. Trim to fit the leading edge and glue in place. A drop of glue on the cracked area of the upper rib strip where it meets the spar. This completes the rib. The turbulator strips are added between the spar and the leading edge and size is determined by the modeler's choice as well as whether one or two tubulator strips are used. Hope this has been helpful.
stickandtissue.com are off line at present and access to the ip is not presently available. My apologies to all of our modelers. I'm working on a solution.
Tom
Tom Akery - 31/12/2025
My apologies for the discrepancies in the discription/build instructions. I drew this plan for myself and when I submitted the plan I was asked for building instructions. Use any airfoil for ribs as you desire. I usually use my CAD program for sizing the airfoil, but if you're limited from a drawing program MSWord will do by inserting a drawing of the airfoil, highlighting the airfoil and dragging the corner out or in will change the size.
Tom
Tom Akery - 31/12/2025
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- Caproni KB-11A (oz16479)
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Notes
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Scaling
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