DOLPHIN 25 (HELMS)

DOLPHIN 25 (HELMS) drawing

Sailboat Specifications


Hull Type:
Keel/Cbrd.
Rigging Type:
Masthead Sloop
LOA:
24.85 ft / 7.57 m
LWL:
21.67 ft / 6.61 m
S.A. (reported):
260.00 ft2 / 24.15 m2
Beam:
7.95 ft / 2.42 m
Draft (max):
5.00 ft / 1.52 m
Draft (min):
1.67 ft / 0.51 m
Displacement:
3,950 lb / 1,792 kg
Ballast:
300 lb / 136 kg
S.A./Disp.:
16.69
Bal./Disp.:
7.59
Disp./Len.:
173.29
Construction:
FG
Ballast Type:
First Built:
1968
Last Built:
# Built:
Builder:
Jack A. Helms Co. (USA)
Designer:
Jack A. Helms
Website:

Sailboat Calculations

S.A./Disp.:
16.69
Bal./Disp.:
7.59
Disp./Len.:
173.29
Comfort Ratio:
17.05

Rig and Sail Particulars

I:
30.50 ft / 9.30 m
J:
10.50 ft / 3.20 m
P:
25.50 ft / 7.77 m
E:
9.00 ft / 2.74 m
SPL/TPS:
ISP:
S.A. Fore:
160.13 ft2 / 14.88 m2
S.A. Main:
114.75 ft2 / 10.66 m2
S.A. Total (100% Fore + Main Triangles)
274.88 ft2 / 25.54 m2
S.A./Disp. (calc.):
17.65
Est. Forestay Len.:
32.26 ft / 9.83 m

Sailboat Links

Notes

Said to have been first built by Advance Sailboat Corp.? Very similar to what later became the HELMS 25.



.