SIRIUS (CAN)
Fractional Sloop • Swing Keel • Built 1976–1985
Dimensions
- LOA
- 22.17 ft
- LWL
- 18.75 ft
- Beam
- 7.92 ft
- Max Draft
- 5 ft
- Min Draft
- 1.33 ft
- Displacement
- 2,000 lbs
- Ballast
- 525 lbs
Performance Ratios
- Capsize Ratio ⓘ
- 2.51 (use caution offshore)
- SA/D Ratio ⓘ
- 20.5
- D/L Ratio ⓘ
- 135
- Ballast Ratio ⓘ
- 26.2%
Sail Plan
- Sail Area
- 203 sq ft
- I
- 25.58 ft
- J
- 8.25 ft
- P
- 20.75 ft
- E
- 8.75 ft
Construction
- Hull Type
- Swing Keel
- Rig Type
- Fractional Sloop
- Hull Material
- FG
- Ballast Type
- Iron
Production
- First Built
- 1976
- Last Built
- 1985
- Number Built
- 500
Engine & Accommodations
- Mast Height
- 24.5 ft
- Headroom
- 4.75 ft
Also known as the SIRIUS 21 (later to become SIRIUS 22).
The SIRIUS 21 is said to be the first North American production-built, ballasted cruising boat with positive flotation. In a more expensive procedure, closed-cell foam was injected into some compartments, then into the gap between the inner and outer hull the full length and up to the deck level.
In the early 1980s, the hull was modified to include a reverse sheer transom at which point the boat was renamed the SIRIUS 22. A fixed-keel model was also offered. (See related sailboat SIRIUS 22).
Headroom increases to 6.25 ft / 1.9 m with the pop-top up.
Sail Area:
-Mail: 93 ft² / 8.64 m²
-Jib: 110 ft² / 10.23 m²
-Genoa: 156 ft² / 14.5 m²
Designer
Builder
- Vandestadt and McGruer Ltd. (CAN) (1965–1987)
Related Boats
| Name | LOA (ft) | Year | Rig |
|---|---|---|---|
| SIRIUS 22 (CAN) | 24.83 | 1985 | Masthead Sloop |