X 4
X-Yachts · Niels Jeppesen · 2016
Updated
Measured under the previous VPP (2021–2024)
The X 4 is a 12.48 m displacement racing yacht designed by Niels Jeppesen and built by X-Yachts, first launched in 2016. It races in Class B.
Length
12.48 m
40′ 11″
Beam
3.97 m
Draft
2.52 m
Displacement
9.9 t
Sail area
97 m²
On the podium
Where a X 4 finishes when she goes racing.
0
Wins
0
Seconds
0
Thirds
2
Starts
Not enough races yet for a percentage — these are the counts so far. We keep collecting results, so this will fill in.
Read from 2 starts by 1 boat between 2026, counting races with six boats or more.
Recent regattas
The latest events where a X 4 was on the start line, named as the organisers publish them.
59.Kihnu Regatt 2026 (ORC EKV etapp)2026
Raced one we are missing?
Report a regattaRound the buoys, or offshore
A short windward-leeward and a night at sea ask different things of a boat. Here is how this one does in each.
Round the buoys
—
Not enough data yet: no races of 10 NM or less carry a published distance.
Offshore & coastal
—
Not enough data yet: no races over 10 NM carry a published distance.
Who she races against
The designs a X 4 actually lines up with, most often first. The bar shows how those meetings ended.
Met too few times for a figure:
First 44.7 (2 meetings), First 36.7 (2 meetings), X-34 (2 meetings), Ridas 35 (2 meetings), Corsa 915 (2 meetings)
Speed at every angle
The shape of this design's speed, drawn from the measured fleet. Pick a wind and watch it stretch.
Speed in knots at 20 knots of true wind. Green marks the angles that pay: the closest useful beat and the deepest run worth sailing.
How fast is a X 4
Boat speed in knots, by true wind angle and wind strength.
| Angle | 6 kn | 10 kn | 14 kn | 20 kn |
|---|---|---|---|---|
| Beat VMG | 4.29 | 5.29 | 5.55 | — |
| 52° | 6.59 | 7.65 | 7.94 | — |
| 60° | 7.11 | 7.86 | 8.16 | — |
| 75° | 7.55 | 8.17 | 8.44 | — |
| 90° | 7.65 | 8.38 | 8.78 | — |
| 110° | 7.40 | 8.40 | 8.97 | — |
| 120° | 7.18 | 8.34 | 9.23 | — |
| 135° | 6.57 | 8.08 | 8.92 | — |
| 150° | 5.68 | 7.52 | 8.27 | — |
| Run VMG | 4.92 | 6.56 | 7.37 | — |
How they are set up
The range each sail spans across the fleet.
Nearly all carry a folding propeller. A bowsprit is standard across the fleet. Crew weight is declared around 820 kg.
Rigging
X 4 rig and sail dimensions
A X 4 carries 16.36 m of mainsail hoist on a 5.73 m boom, a forestay 17.43 m above the deck and a 5.63 m bowsprit. Typical figures across the 3 boats measured under the current VPP, with the range each one spans.
Rig
Sails