These files are large, so be patient during the download.
FrSky users, please read the readme.txt included in the ZIP
The S-39 is a relatively easy airplane to build, everything is very straightforward and no super building skills are required. Although it flies as easily as a trainer with no bad habits, I would highly recommend a person have some scratch-building experience before tackling the construction.
Since this is not a beginner's project, the designer highly recommend to read the instructions, study the plans, and look at the construction photos until everything is clearly understood..."
The plan of this model can be found on RCGroup
Scratch Build from Joshua O. available here
Some content in menu 2.
Wingspan: 1943 mm
Fuselage Length: 1245 mm
Wing Area: 38.83 dm²
Weight: 2500 g
Profile: Clark Y