It is characterized by the famous “worm screw” coil drive that grants a correct stowage of the furling line avoiding all possible overlaps while furling. The coil drive is made of silver anodized aluminium machined with CNC machines, and integrates a ball bearing bush protected by seals and ORs.
Another important mechanical component is the halyard swivel that connects the halyard to the sail. It is made of silver anodised aluminium machined with CNC machines, and rotates on ball bearings protected by seals and ORs that grant its tightness.
The manual external mainsail furler kit includes:
- sail stowing foils
- furling foils and connectors
- halyard swivel
- terminal fitting
- gooseneck connecting the boom to the mast
- “worm screw” coil drive with furling line
- screws and rivets
- boom modification: track with terminals, screws and fixing plates, cars running on ball bearings, three blocks to take the line down to the mast foot
| Model | Max E* m | Max P m | Ø A mm | Ø B mm | C mm | Ø D mm | E mm | F mm | G mm | Ø H mm |
| BA70 | 3,2 | 13 | 74 | 70 | 10 | 8 | 995 | 505 | 135 | 68 |
| BA80 | 4,2 | 15,5 | 84 | 80 | 10 | 8 | 1065 | 575 | 150 | 77 |
| C | 5,7 | 18 | 94 | 90 | 13 | 10 | 1095 | 610 | 150 | 88 |
| D | 6,7 | 20,5 | 110 | 105 | 13 | 10 | 1.255 | 765 | 160 | 103 |
| E | 10 | 30 | 158 | 150 | 22 | 12 | 1.500 | 1000 | 140 | 147 |
Model |
BA70 |
BA80 |
C |
D |
E |
I (inner foil type) |
BMG 30T |
BMG 30T |
BMG 30T |
BMG 30T |
BMG 52 |
Halyard swivel kg |
1 |
1,5 |
2 |
3 |
4,5 |
Inner foil kg/m |
0,62 |
0,62 |
0,62 |
0,62 |
1,77 |
External foil kg/m |
1,72 |
2,7 |
3,3 |
4,18 |
6,1 |
Coil drive kg |
4 |
5 |
6 |
12 |
16 |
| * Data expressed are indicative and need to be checked with the sail-maker depending on cut, cloth and thickness of the sail | |||||