Free Tack Adaptor on CX-drum with

GX-halyard swivel

A CX drum is combined with a Free Tack Adapter and a GX halyard swivel. The furled sail is hoisted with the gennaker halyard, and the drum and furling line can be permanently installed.

Calculation table for AT-cable, length and maximum sail space.

		AT-cable length (mm)	Max sail space (mm)
ID	Total distance between the halyard shackle and the attachment in the deck/bowsprit
SD	Standard deduction (recommended):	- 100	- 100
TS	Total system length	= -100	= -100
HS	Deduction for halyard swivel	- 70
E	Deduction for lower swivel	- 115
AS	Reduction for adaptor	- 30
	Any other deductions such as 2:1 bridle below lower swivel and / or 2:1 halyard system	-	-
ATS	Max space for the AT-cable	= -315
%	Deduction (1%) for the elongation of the AT-cable = ATS x 0.01	- -3	-3
SDH	Deduction for halyard swivel		- 70
SDA	Deduction for lower swivel adapter		- 35
CRL	Cover length of the AT-cable NOTE! This is NOT the cutting length!	= -312
B	Addition for Line-lock terminal (halyard swivel)	+ 120
A	Addition for Line-lock terminal (lower swivel)	+ 120
ATL	AT-cable total length (cutting length)	= -72
MSS	Max sail space (including space for lashing)		= -202

Control measurement of assembled system		Total system length
TL	Total system length (SDA + MSS + SDH):	-97 mm