Dear Members,
We are working on a 50 feet semi displacement power catamaran. I have read lots of comments and examples about electric and hybrid systems, and examined them. But I still do not have courage to apply this to our project as a propulsion system. Since I haven't found a similar example to our project.
Do anyone have idea or advise about this subject or may help?
The main characteristics are;
LOA:14,9m
B:6,14m
D:2,9m
T:0,85m
Disp: 21,37 t. (Departure Cond.)
Solar Panel Area: 34 m^2
For Resistance, basicly Slender Body Theorm provides following;
(with %55 efficieny)
Speed Resist Power
(knots) (kN) (hp)
4.8 1.8 21.68
5.5 1.94 26.82
6.2 1.92 29.84
6.9 2.46 42.6
7.6 2.7 51.42
8.3 2.61 54.24
9.0 2.92 65.92
9.7 3.56 86.68
10.4 4.32 112.76
11.1 4.99 138.84
11.8 5.6 165.82
12.5 6.09 191.1
13.2 6.55 216.76
13.9 6.86 239.16
14.6 7.27 266.14
15.3 7.55 289.9
16.0 7.91 317.34
16.7 8.22 344.28
17.4 8.59 374.8
18.1 8.85 401.76
18.8 9.28 437.5
19.5 9.65 472.24
20.2 9.97 505.16
20.9 10.28 538.78
21.6 10.72 580.96
22.3 11.17 624.9
23.0 11.51 664.36
23.7 11.87 705.6
24.4 12.32 754.36
25.1 12.74 801.98
(The speed requirement and constant costs of material is not important if hybrid / electric system is feasible for operating.)
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