FIREFLY — SWE 39
Model: X-35
Updated
FIREFLY (SWE 39) is a X-35 designed by Niels Jeppesen and built by X-Yachts. She has been racing since 2024. Against a typical X-35 she is slower on a beam reach.
Racing record
Races with at least six boats11
Race starts
0
Wins
36%
Podiums
75
Race Edge
X-35: 78
543.2s/mile
Rating 2026
Race Edge by wind strength: how much she delivers beyond her rating, compared with the other boats in her class.
Length
10.60 m
34′ 9″
Beam
3.25 m
Draft
2.16 m
Displacement
4.5 t
Sail area
75 m²
On the podium
Where FIREFLY finishes when she goes racing.
On the podium
36%
of 11 starts · X-35 fleet: 24%
Wins
0%
Regattas
Every regatta we found with FIREFLY on the start line, named as the organisers publish them.
Marstrand Big Boat Race2026434473
DH-Dm2024311295
Is there a race missing?Send us the results and we will add them here.
Report a regattaRound the buoys, or offshore
A short windward-leeward and a night at sea ask different things of a boat.
Round the buoys
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Not enough data yet: 6 races of 10 NM or less carry a published distance.
Offshore & coastal
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Not enough data yet: no races over 10 NM carry a published distance.
5 more races without a published distance count in the podium figures, not in this split.
Who she races against
The boats FIREFLY meets most often on the start line. The bar shows how those meetings ended, on corrected time.
Other competitors (12)
Met too few times for a figure.
KWANZA (Fareast 28, 6 meetings), BLUR (J/99, 6 meetings), PATENT 4 (Italia 9.98, 6 meetings), LA PRIMERA (Sun Fast 3600, 6 meetings), VINDRUS (Xp 33, 6 meetings), FARRARI (Farr 30, 6 meetings), BELLATRIX (X-35, 6 meetings), ALSYDBANK (X-35, 6 meetings), EMMA (X-99, 5 meetings), EXOLIST (X-362, 5 meetings), ANDREA (X-362, 5 meetings), HENDRIX (Xp 33, 4 meetings)
How FIREFLY compares with a typical X-35
Her main 2026 measurements against the middle of the fleet: one boat per sail number, the latest full-crew configuration with spinnaker, X-35s measured since 2025.
Above the line she is quicker than a typical X-35; below, slower. Move the wind: plenty of boats sit on one side in the light and the other when it blows.
Full width is 0.4 kn either way.
At 10 knots she gives away time to a typical X-35 on the beam reach.
Speed at every angle
FIREFLY in blue, a typical X-35 dashed.
FIREFLY in blue, a typical X-35 dashed; green marks the closest useful beat and the deepest run worth sailing.
Other X-35s racing
Every sister ship with results on TackRegatta, the most recently raced first.
More about the X-35
Speed at every angle, Race Edge, the race record of the whole fleet and how the boats are set up.
Something wrong in FIREFLY's data? A regatta, a result, her design or her sail number.
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