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Performance

Dragonfly 25 Performance

How the Dragonfly 25 performs on the water — racing handicap, sail-carrying power, stability and comfort.

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The Dragonfly 25 is aggressively canvassed for its weight, with a quick, snappy motion best suited to day sailing.

Hull Speed

The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.

6.2 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.

Performance Ratios

Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.

SA / Displacement
38.1
Performance-oriented — carries a lot of canvas for its weight.
Displacement / Length
68
Ultralight — responsive and fast, but carries less stores.
Comfort Ratio
1.9
Quick, snappy motion — better for day sails and racing than long passages.
Capsize Screening
6.88
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Hull Speed
6.2kts
Pounds/Inch Immersion
9lbs
Weight needed to sink the hull one inch — loading sensitivity.

Motion & Offshore Suitability

Two ratios that matter most when you're planning passages — how the boat feels in a seaway, and whether the hull geometry is suitable for open ocean.

Comfort Ratio
1.9
Quick, snappy motion — better for day sails and racing than long passages.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
6.88
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Under 2.0 — Acceptable for offshore
Over 2.0 — Coastal / protected waters

PHRF Fleet Position

Where the Dragonfly 25 sits on the PHRF handicap spectrum — lower numbers mean faster boats.

Cruiser/Racer 90–150
Cruiser 150–210
Heavy Cruiser 210–300
Kirby 25 174s/nm

Estimated Speed by Wind

Rough boat speed estimates at different true wind speeds and points of sail — derived from hull speed, SA/D, and displacement, not measured polars.

Point of Sail 6 kts TWS 10 kts TWS 15 kts TWS 20 kts TWS
Close-hauled40–50° 2.9 3.7 4.1 4.3
Close Reach60° 3.5 4.5 5.0 5.2
Beam Reach90° 4.3 5.5 6.1 6.6
Broad Reach120–135° 4.0 5.1 5.7 6.1
Run150–180° 3.2 4.1 4.5 4.7
These are simplified estimates based on hull speed (6.2 kts), SA/D (38.1), and empirical efficiency curves — not instrument-measured polars. Real-world speed varies with sea state, bottom condition, sail trim, and current. Speeds in gold approach hull speed; bold gold means near or at hull speed.

Wind Range & Comfort Envelope

Estimated wind ranges for comfortable sailing on the Dragonfly 25 — based on sail area, ballast, and displacement characteristics.

Ghost
Sweet Spot
Reef
Heavy
0–5 kts 5–16 kts 16–24 kts 24+ kts
Ghosting
0–5 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
5–16 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
16–24 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
24+ kts
Storm conditions. Storm jib or bare poles. Seek shelter if coastal.

How It Compares

Side-by-side with the boats most often cross-shopped against the Dragonfly 25.

Dragonfly 25 Cc 25 Contessa 25 Peterson Kirby 25 Mirage 25 Perry Surprise 25 Archambault
Dimensions
LOA 25.3 25.2 25.2 25.2 25.2 25.1
LWL — 20.7 21.0 20.8 21.0 21.7
Beam 19.7 8.6 9.4 8.8 9.5 8.1
Displacement 1 4 4 3 4 2
Ballast — 1 2 1 1 1
Sail Area 311 306 350 289 — 296
Performance
PHRF — — — 174 — —
SA/Disp 38.1 18.6 20.3 21.6 — 24.2
Bal/Disp — 44.2 45.7 — — —
Comfort 1.9 17.2 16.1 12.3 15.2 11.5
Capsize 6.88 2.11 2.27 2.39 2.32 2.33
Hull Speed 6.2 6.1 6.1 6.1 6.1 6.2