O'Day 28

1978 — 1986
Designer
Raymond Hunt (C.R. Hunt & Assoc.)
Builders
Bangor Punta Corp.
O'Day Corp.
Associations
?
# Built
507
Hull Type
Fin w/spade rudder
Construction
FG

Dimensions

Length Overall
28 2 / 8.6 m
Waterline Length
22 11 / 7 m
Beam
10 2 / 3.1 m
Draft
4 5 / 1.4 m
Displacement
7,300 lbs / 3,311 kg
Ballast
2,550 lbs / 1,157 kg
drawing

Rig and Sails

Type
Masthead Sloop
Reported Sail Area
370 ft2 / 34.4 m2
Total Sail Area
370 ft2 / 34.4 m2
Mainsail
Sail Area
152.5 ft2 / 14.2 m2
P
30 6 / 9.3 m
E
10 0 / 3.1 m
Mast Height
40 1 / 12.2 m
Foresail
Sail Area
217.4 ft2 / 20.2 m2
I
35 11 / 11 m
J
12 0 / 3.7 m
Forestay Length
37 11 / 11.6 m

Auxilary Power

Make
Universal
Model
12
HP
10
Fuel Type
Diesel
Fuel Capacity
18 gal / 68 l

Accomodations

Water Capacity
25 gal / 95 l
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
6.42 knots
Sail Area/Displacement
15.73
under powered
Ballast/Displacement
34.93
less stiff, less powerful
Displacement/Length
270.66
moderate
Comfort Ratio
20.59
coastal cruiser
Capsize Screening
2.11
better suited for coastal cruising

Notes

A keel/cb verion of the the O’DAY 28 was also available. Draft BU: 3.25’, BD: 6.83’
Later, the the keel/cb version was dropped in favor of a shoal draft fixed keel: Draft:3.67’
Deeper keel: Draft:4.67’/ 1.42m
Alternate tall rig:
I: 38.00’ / 11.58m
J: 12.08’ / 3.68m
P: 32.50’ / 9.91m
E: 10.00’ / 3.05m


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