J/70

J/70 photo J/70 drawing

Sailboat Specifications


Hull Type:
Fin w/transom hung rudder
Rigging Type:
Fractional Sloop
LOA:
22.74 ft / 6.93 m
LWL:
20.47 ft / 6.24 m
S.A. (reported):
226.00 ft2 / 21.00 m2
Beam:
7.38 ft / 2.25 m
Draft (max):
4.92 ft / 1.50 m
Draft (min):
Displacement:
1,790 lb / 812 kg
Ballast:
628 lb / 285 kg
S.A./Disp.:
24.58
Bal./Disp.:
35.08
Disp./Len.:
93.16
Construction:
FG
Ballast Type:
Lead
First Built:
2012
Last Built:
# Built:
1100
Builder:
J Boats (USA)
Designer:
Alan Johnstone
Website:

Sailboat Calculations

S.A./Disp.:
24.58
Bal./Disp.:
35.08
Disp./Len.:
93.16
Comfort Ratio:
9.12

Rig and Sail Particulars

I:
26.77 ft / 8.16 m
J:
7.68 ft / 2.34 m
P:
26.16 ft / 7.97 m
E:
9.44 ft / 2.88 m
SPL/TPS:
ISP:
30.15 ft / 9.19 m
S.A. Fore:
102.80 ft2 / 9.55 m2
S.A. Main:
123.48 ft2 / 11.47 m2
S.A. Total (100% Fore + Main Triangles)
226.27 ft2 / 21.02 m2
S.A./Disp. (calc.):
24.61
Est. Forestay Len.:
27.85 ft / 8.49 m

Sailboat Links

Notes

Spinnaker (asym.) area: 491 sq.ft./45 m² More than 1100 delivered as of 2016.



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