The Whitby 27 14 Ton is well-powered with enough sail area to move in light air, 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.
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 20.0′, the Whitby 27 14 Ton tops out around 6.0 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √20.0′ LWL = 6.0 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
18.2
Powerful cruiser/racer — quick in light air, reef early when it pipes up.
Comfort Ratio
14.7
Quick, snappy motion — better for day sails and racing than long passages.
Capsize Screening
2.24
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Pounds/Inch Immersion
622lbs
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
14.7
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
2.24
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 Whitby 27 14 Ton sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Cruiser/Racer 90–150
Cruiser 150–210
Heavy Cruiser 210–300
C&C 27
186s/nm
Cs 27
204s/nm
Tartan 27 2
234s/nm
Vancouver 27
258s/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° |
2.5 |
3.1 |
3.5 |
3.6 |
| Close Reach60° |
3.0 |
3.8 |
4.2 |
4.4 |
| Beam Reach90° |
3.7 |
4.6 |
5.2 |
5.4 |
| Broad Reach120–135° |
3.4 |
4.3 |
4.8 |
5.0 |
| Run150–180° |
2.7 |
3.4 |
3.8 |
4.0 |
These are simplified estimates based on hull speed (6.0 kts),
SA/D (18.2), 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 Whitby 27 14 Ton — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–6 kts
6–18 kts
18–26 kts
26+ kts
Ghosting
0–6 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
6–18 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
18–26 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
26+ 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 Whitby 27 14 Ton.
|
Whitby 27 14 Ton |
C&C 27 |
Cs 27 |
Elvstrom 14 Ton |
Tartan 27 2 |
Vancouver 27 |
| Dimensions |
| LOA |
27.0 |
27.0 |
27.0 |
27.0 |
27.0 |
27.0 |
| LWL |
20.0 |
— |
23.9 |
20.0 |
21.4 |
22.9 |
| Beam |
8.7 |
— |
9.3 |
8.7 |
8.6 |
8.7 |
| Displacement |
3 |
— |
6 |
3 |
7 |
8 |
| Ballast |
— |
— |
2 |
— |
2 |
3 |
| Sail Area |
273 |
— |
453 |
273 |
413 |
381 |
| Performance |
| PHRF |
— |
186 |
204 |
— |
234 |
258 |
| SA/Disp |
18.2 |
— |
21.8 |
18.2 |
17.5 |
14.2 |
| Bal/Disp |
— |
— |
39.3 |
— |
— |
— |
| Comfort |
14.7 |
— |
19.4 |
14.7 |
28.1 |
32.3 |
| Capsize |
2.24 |
— |
2.05 |
2.24 |
1.77 |
1.67 |
| Hull Speed |
6.0 |
— |
6.6 |
6.0 |
6.2 |
6.4 |