IRWIN 28 MK III
Hull
Fin with rudder on skeg
Rigging
Masthead Sloop
LOA
28.5 ft i.e. 8.69 m
LWL
23 ft i.e. 7.01 m
Sail Area
377 ft² i.e. 35.02 m²
Beam
9 ft i.e. 2.74 m
Displacement
7800 lb i.e. 3538 kg
Ballast
3000 lb i.e. 1361 kg
Max Draft
4.5 ft i.e. 1.37 m
Construction
Fiberglass
Ballast Type
Lead
First Built
1974
Last Built
N/A
Maker
N/A
Design
Ted Irwin
Make
Atomic 4
Type
N/A
Fuel
N/A
Water
N/A
Headroom
N/A
Blue Water Surf Value
0.06
S.A. / Displ.
15.39
Bal. / Displ.
38.46
Displ. / Length
286.2
Comfort Ratio
26.2
Capsize Screening Formula
1.82
Hull Speed
6.43 kt
Pounds/Inch Immersion
739.63 pounds/inch
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