| Label of blade | Flap height h | Height-chord ratio h/c | Flap attaching direction |
| NG0 | 0 mm | 0.00 | - |
| GI4 | 4 mm | 0.036 | Inward |
| GI6 | 6 mm | 0.055 | Inward |
| GO4 | 4 mm | 0.036 | Outward |
| GO6 | 6 mm | 0.055 | Outward |