The balsa version of the Vortex is now updated to version 3, to bring it up to the same specification as the composite version currently in production.

The main changes on this version are:

- larger stab with increased span to fix a pitch coupling in knife edge flight that could not be solved with conventional trimming methods;
- wing moved 28mm higher on the fuselage and dihedral angle reduced to 0 to fix the roll coupling in knife edge flight and make rolls more axial;
- stab moved lower by 8mm;
- modified incidence angles for wing and stab according to the attached drawing.

These changes were successfully tested on the prototype composite model and improved its flying characteristics by a large margin. The composite models produced now have all these modifications.

Here are the drawings for the Vortex V3 complete model:
https://drive.google.com/file/d/1M_5...GybIYpxbnIpDV7

If anyone built the first version of the Vortex and wants to update it with the new wings and stabs, I made separate drawings for them:
https://drive.google.com/file/d/1_rM...oYZwHVAa1LwiCQ
https://drive.google.com/file/d/1UQt...gBuoLijKpths5Y

If anyone wants to move the wing higher on the model, I can provide pictures to show how to do this modification for both the balsa and composite models.

The updated 3D models can be found at the link below. The mold plug models and a custom size 3D printed spinner are included:
https://drive.google.com/file/d/1qdJ...vyes08vk-eQ6gC
I can provide the spinner model for any diameter, just let me know if you need one. The material used for printing is Carbon PETG which is very tough and provides good strength for the backplate.

The color templates were adjusted for the higher wing position. PDF and DWG formats are included:
https://drive.google.com/file/d/18By...YSpslL9koNPx93

The instructions manual was updated to V1.3:
https://drive.google.com/file/d/1S_w...47QIueVgLSewlm