The Dragonfly 800 is aggressively canvassed for its weight.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
6.7 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 24.9′, the Dragonfly 800 tops out around 6.7 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √24.9′ LWL = 6.7 kts
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
33.5
Performance-oriented — carries a lot of canvas for its weight.
Displacement / Length
70
Ultralight — responsive and fast, but carries less stores.
Hull Speed
6.7kts
PHRF Fleet Position
Where the Dragonfly 800 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Cork 1720
J/80
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° | 3.2 | 4.0 | 4.5 | 4.6 |
| Close Reach60° | 3.8 | 4.8 | 5.4 | 5.6 |
| Beam Reach90° | 4.7 | 5.9 | 6.6 | 7.2 |
| Broad Reach120–135° | 4.3 | 5.5 | 6.1 | 6.6 |
| Run150–180° | 3.5 | 4.4 | 4.9 | 5.1 |
These are simplified estimates based on hull speed (6.7 kts),
SA/D (33.5), 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 800 — based on sail area, ballast, and displacement characteristics.
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 800.
| Dragonfly 800 | Cork 1720 | First 26 Beneteau | J/80 | Twister 800 | Winner 8 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 26.3 | 26.3 | 26.3 | 26.3 | 26.3 | 26.3 |
| LWL | 24.9 | 23.3 | 22.9 | 22.8 | 25.6 | 24.0 |
| Beam | 19.9 | 8.2 | 9.2 | 9.4 | 8.9 | 9.4 |
| Displacement | 2 | 3 | 4 | 3 | 4 | 5 |
| Ballast | — | 1 | 1 | 1 | 1 | 2 |
| Sail Area | 377 | 358 | 291 | 338 | 333 | 430 |
| Performance | ||||||
| PHRF | — | 96 | — | 129 | — | — |
| SA/Disp | 33.5 | 27.6 | 16.4 | 24.8 | 18.7 | 22.8 |
| Bal/Disp | — | 46.3 | 30.2 | 42.7 | — | — |
| Comfort | — | 11.7 | 16.2 | 17.9 | 15.9 | 16.9 |
| Capsize | — | 2.27 | 2.18 | 1.80 | 2.10 | 2.15 |
| Hull Speed | — | 6.5 | 6.4 | 6.9 | 6.8 | 6.6 |