- F3-6A: Prototype based largely upon the F3-5E; 1 built
- F3-6B: Developmental variants with various features integrated for testing; 5 built
- F3-6C: Production version: 2 built
- F3-6D: Variant outfitted for use with RC powerplant and controls, ventral skids added; 1 conversion from F3-6C
Note: The above production numbers only include aircraft made by OrigamiAirEnforcer
Instructions for the F3-6C Omniwing Zeta variant can be found here.