Jeanneau Sun Fast 1/2 Ton

1984 — 1986
Designer
Tony Castro
Builder
Jeanneau
Associations
Sun Fast (Jeanneau)
Half Ton Class
# Built
10
Hull
Monohull
Keel
Fin
Rudder
Spade
Construction
FG w/carbon & kev.

Dimensions

Length Overall
29 10 / 9.1 m
Waterline Length
24 7 / 7.5 m
Beam
10 2 / 3.1 m
Draft
5 5 / 1.7 m
Displacement
7,280 lb / 3,300 kg
Ballast
2,430 lb / 1,100 kg (Lead)

Rig and Sails

Type
Sloop
Reported Sail Area
559′² / 51.9 m²
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Mast Height
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

Make
?
Model
?
HP
?
Fuel Type
?
Fuel Capacity
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
6.65 knots
Sail Area/Displacement
23.82
high performance
Ballast/Displacement
33.33
less stiff, less powerful
Displacement/Length
217.9
moderate
Comfort Ratio
19.24
lightweight racing boat
Capsize Screening
2.11
better suited for coastal cruising

Notes

Prototype was ‘Sun Fast’.
Limited edition IOR 1/2 ton racer from Jeanneau. Options included special carbon and or kevlar reinforced hull and deck.
A number of later Jeanneau production models were based on this design. (ARCADIA, SUN WAY 28, etc.)
(prev. listed here as JEANNEAU 1/2 TON).

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