Mistral T-21
Mistral Sailboats · designed by Mistral Sailboats · 1978
CentreboardBermuda rigCanada
The Mistral T-21 is a 21-foot bermuda rig sailboat designed by Mistral Sailboats and built by Mistral Sailboats, first launched in 1978.
General
| Builder | Mistral Sailboats |
|---|---|
| Designer | Mistral Sailboats |
| Years built | 1978 |
| Hull type | Centreboard |
| Rig type | Bermuda rig |
| Construction | fiberglass |
| Origin | Canada |
Dimensions
| LOA | 21.00 ft6.40 m |
|---|---|
| LWL | 18.67 ft5.69 m |
| Beam | 8.16 ft2.49 m |
| Draft (max) | 5.10 ft1.55 m |
| Displacement | 2,700 lb1,225 kg |
| Ballast | 770 lb349 kg |
| Sail Area | 228 ft²21.2 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 18.81 Cruiser — good all-round performance
Ballast / Displacement 28.5 % Higher = stiffer / more sail-carrying power
Displacement / Length 185 Light
Comfort Ratio 13.1 Racing / light coastal
Capsize Screening 2.34 Better suited to coastal use (> 2.0)
Hull Speed 5.8 kn Theoretical max displacement speed
How these numbers are calculated
- SA / Displacement
SA ÷ (Disp ÷ 64)^(2/3)— Power-to-weight. < 16 under-canvassed, 16–20 cruiser, > 20 racer.- Ballast / Displacement
Ballast ÷ Disp × 100— Stability/stiffness. Higher carries sail better.- Displacement / Length
Disp(lt) ÷ (0.01 · LWL)³— < 100 ultralight, 100–200 light, 200–300 moderate, > 300 heavy.- Comfort Ratio (Brewer)
Disp ÷ (0.65 · (0.7·LWL + 0.3·LOA) · Beam^1.33)— Motion in a seaway. Higher = more comfortable offshore.- Capsize Screening
Beam ÷ (Disp ÷ 64)^(1/3)— ≤ 2.0 favored for offshore; > 2.0 better for coastal use.- Hull Speed
1.34 · √LWL— Theoretical max displacement speed in knots.
Estimated price
$12,000 typical range $9,500 – $14,500
⚠ Rough estimate only — not market data. Derived from a simple model based on length and hull age; actual asking prices vary widely with condition, equipment, engine hours and location.
