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Verified rig dimensions & sail specifications

X-Yachts X-79

Fractional sloop
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Rig dimensions

Spar measurements for the X-Yachts X-79. All dimensions are metric and used to calculate square and linear meterage to develop a quote. When you go ahead we'll confirm your boat's specific measurements and fitment details.

P
10.0m
Main luff
Maximum Halyard Hoist to Top of Boom
E
3.5m
Main foot
Back Surface of Mast to Max Outhaul
I
9.0m
Forestay height
Maximum Hoist to Sheerline at Mast
J
2.8m
Forestay to mast
Distance from Forestay Attachment to Front Surface of Mast
Calculated mainsail area
Pin head 17.5m²
Square top m²
In-mast furling — battenless m²
In-mast furling — battened m²

Calculated areas are indicative. Final area confirmed at measure.

Headsail dimensions

LP (luff perpendicular) is measured from the clew to the luff, perpendicular to the luff. It's given as a percentage of the J measurement (2.8m). It can also be used to estimate headsail size for given wind strengths.

Genoa size LP (m) Notes
110% 3.03m Tighter sheeting, better upwind performance. Suits windier conditions.
120% 3.3m Versatile all-rounder. Most popular choice for coastal cruising.
130% 3.58m Maximum light-air power. Suits passage-making and light-wind sailing.

Ordering sails for your X-Yachts X-79

Kraken Sails uses these rig measurements to quote on your sail area and provide you a very close cost estimate. We never build sails to rough rig measurements — if you go ahead we will work with you to build truly custom sails built for your specific boat and your use case.

To get a quote, use the button below. Include your boat details and we'll confirm rig measurements and send a firm price within 24 hrs. No phone calls, no sales pressure — just a clear number you can act on.

Request a quote for the X-Yachts X-79

Rig dimensions sourced from manufacturer specifications and verified sailmaker measurements. Always confirm against your own rig before ordering. Last updated 2026-03-26.