| The
Classic Dinghy |
12' |
10
' |
8
' |
Data
Description |
| LOA (ft.) |
11.8 |
10.25 |
8.33 |
Length Overall |
| LWL (ft.) |
10 |
8.33 |
6.67 |
Length on the Design
Waterline |
| Maximum Beam (ft.) |
4 |
4 |
4 |
Located at Station 6 |
| Beam @ LWL (ft.) |
3.45 |
3.45 |
3.45 |
Located at Midship
Section (Sta. 5) |
| BM/LWL |
0.35 |
0.35 |
0.35 |
Beam to Waterline
Ratio |
| Draft - Fairbody (ft.) |
0.56 |
0.56 |
0.56 |
Depth of hull at
Station 4.5 |
| Draft - CB Down (ft.) |
3.5 |
3 |
2.5 |
Centerboard or
Daggerboard Design |
| Hull Weight (lbs.)
Min. |
85 |
76 |
62 |
Canoe Type Seats
Without Flotation |
| Displacement (lbs.
Seawater) |
398 |
333 |
266 |
At the Design
Waterline |
| Displacement @ Rise =
-.083 |
521 |
433 |
266 |
At 1" Below LWL |
| Displacemaent @ Rise =
LC |
835 |
676 |
512 |
Max Load Capacity @
9" Freeboard |
| PPI @ LWL (lbs.) |
123 |
100 |
81 |
Pounds Per Inch
Immersion |
| Displacement (Long
Tons) |
0.18 |
0.15 |
0.12 |
N/A |
| Displacement (Vol. cu.
ft.) |
6.22 |
5.20 |
4.16 |
N/A |
| LCB - X Dim (ft.) |
6.02 |
4.82 |
3.86 |
Longitudinal Center of
Buoyancy |
| LCF - X Dim (ft.) |
5.78 |
5.02 |
4.02 |
Longitudinal Center of
Flotation |
| VCB (ft.) |
-0.18 |
-0.18 |
-0.18 |
Vertical Center of
Buoyancy |
| WPA (sq. ft.) |
21.6 |
18.0 |
14.4 |
Waterplane Area |
| Cw |
0.63 |
0.63 |
0.63 |
Waterplane Coefficient |
| MSA (sq. ft.) |
1.25 |
1.25 |
1.25 |
Midship Section Area |
| MSBMLWL (ft.) |
3.45 |
3.45 |
3.45 |
Beam - Midship Section
at LWL |
| Cm |
0.65 |
0.65 |
0.65 |
Midship Section
Coefficient |
| LPA (sq. ft.) |
3.56 |
3.41 |
2.43 |
Lateral Plane Are
(Sailing Hull Info) |
| CLP - X Dim (ft) |
5.67 |
4.83 |
4.54 |
Center of Lateral
Plane (Sailing Hulls) |
| WS (sq. ft.) |
23.3 |
19.5 |
15.7 |
Wetted Surface Area |
| Cb |
0.32 |
0.32 |
0.32 |
Block Coefficient |
| Cp |
.50 |
.50 |
.50 |
Prismatic Coefficient |
| D/L |
178 |
257 |
400 |
Displacement to Length
Ratio |
| Sail Area (sq. ft.) |
55 |
48 |
42 |
Can be increased for
areas of light air |
| SA/D |
16 |
16 |
16 |
Sail Area to
Displacement Ratio |
| SA/WS |
2.36 |
2.46 |
2.68 |
Sail Area to Wetted
Surface Area |
| Load Capacity (lbs) |
750 |
600 |
450 |
Max.Weight for Cargo @
Passengers |
| Freeboard Fwd. (ft.) |
1.65 |
1.65 |
1.65 |
Measured from LWL at
Bow |
| Freeboard Minimum
(ft.) |
1.22 |
1.22 |
1.22 |
From LWL at Sta.7 |
| Freeboard Aft (ft.) |
1.28 |
1.28 |
1.28 |
From LWL at Transom |
| Outboard (HP) Long
Shaft |
2 |
2 |
2 |
With Minimum Flotation
Installed |
