CHALLENGER 7.4

CHALLENGER 7.4 photo

Sailboat Specifications


Hull Type:
Fin w/spade rudder
Rigging Type:
Masthead Sloop
LOA:
24.33 ft / 7.42 m
LWL:
22.17 ft / 6.76 m
Beam:
8.17 ft / 2.49 m
S.A. (reported):
230.00 ft2 / 21.37 m2
Draft (max):
3.42 ft / 1.04 m
Displacement:
4,000 lb / 1,814 kg
Ballast:
2,090 lb / 948 kg
S.A./Disp.:
14.64
Bal./Disp.:
52.25
Disp./Len.:
163.88
Construction:
FG
Ballast Type:
Iron
First Built:
1974
Last Built:
1980
# Built:
800
Builder:
Challenger Yachts Ltd. (CAN)
Designer:
Alex McGruer

Sailboat Calculations

S.A./Disp.:
14.64
Bal./Disp.:
52.25
Disp./Len.:
163.88
Comfort Ratio:
16.50
Capsize Screening Formula:
2.06
S#:
2.77

Rig and Sail Particulars

I:
26.50 ft / 8.08 m
J:
9.50 ft / 2.90 m
P:
23.80 ft / 7.25 m
E:
8.25 ft / 2.51 m
S.A. Fore:
125.88 ft2 / 11.69 m2
S.A. Main:
98.18 ft2 / 9.12 m2
S.A. Total (100% Fore + Main Triangles)
224.05 ft2 / 20.81 m2
S.A./Disp. (calc.):
14.27
Est. Forestay Len.:
28.15 ft / 8.58 m

Notes

Also known as the CHALLENGER 7.5 and CHALLENGER 24.
Most of the boats are powered by an outboard, although the original design called for a Renault diesel.

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