IRWIN 28 MK IV
Masthead Sloop • Fin with rudder on skeg • Built 1976–1981
Dimensions
- LOA
- 28.42 ft
- LWL
- 23 ft
- Beam
- 9 ft
- Max Draft
- 4.5 ft
- Displacement
- 7,800 lbs
- Ballast
- 3,200 lbs
Performance Ratios
- Capsize Ratio ⓘ
- 1.81 (offshore safe)
- SA/D Ratio ⓘ
- 15.3
- D/L Ratio ⓘ
- 286
- Ballast Ratio ⓘ
- 41.0%
Sail Plan
- Sail Area
- 377 sq ft
- I
- 37 ft
- J
- 12 ft
- P
- 31.67 ft
- E
- 9.75 ft
Construction
- Hull Type
- Fin with rudder on skeg
- Rig Type
- Masthead Sloop
- Hull Material
- FG
- Ballast Type
- Lead
Production
- First Built
- 1976
- Last Built
- 1981
- Number Built
- —
Notes: Keel/CB version also available.\n
Related Boats
| Name | LOA (ft) | Year | Rig |
|---|---|---|---|
| IRWIN 28 | 28 | 1970 | Masthead Sloop |