ROSS 780

ROSS 780 photo ROSS 780 drawing

Sailboat Specifications


Hull Type:
Lifting Keel
Rigging Type:
Fractional Sloop
LOA:
25.58 ft / 7.80 m
LWL:
23.25 ft / 7.09 m
Beam:
8.08 ft / 2.46 m
S.A. (reported):
293.00 ft2 / 27.22 m2
Draft (max):
5.92 ft / 1.80 m
Draft (min):
0.92 ft / 0.28 m
Displacement:
2,490 lb / 1,129 kg
Ballast:
1,012 lb / 459 kg
S.A./Disp.:
25.58
Bal./Disp.:
40.64
Disp./Len.:
88.45
Construction:
FG
Ballast Type:
Lead
First Built:
1980
# Built:
70
Builder:
Austin - Hopwood Boats (NZ)
Designer:
Murray Ross

Auxiliary Power/Tanks (orig. equip.)

Type:
Outboard
Fuel:
3 gals / 11 L

Sailboat Calculations

S.A./Disp.:
25.58
Bal./Disp.:
40.64
Disp./Len.:
88.45
Comfort Ratio:
9.93
Capsize Screening Formula:
2.39
S#:
5.86

Rig and Sail Particulars

I:
25.75 ft / 7.85 m
J:
8.50 ft / 2.59 m
P:
28.75 ft / 8.76 m
E:
12.75 ft / 3.89 m
S.A. Fore:
109.44 ft2 / 10.17 m2
S.A. Main:
183.28 ft2 / 17.03 m2
S.A. Total (100% Fore + Main Triangles)
292.72 ft2 / 27.19 m2
S.A./Disp. (calc.):
25.56
Est. Forestay Len.:
27.12 ft / 8.27 m

Accommodations

Water:
11 gals / 42 L

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