Scow Family Specifications Including Portsmouth and PHRF Numbers
Measurement |
MC |
M-16 |
Super Scow |
Melges 17 |
I-20 |
M-20 |
C |
E |
A |
L.O.A. |
16' |
16' |
16' |
16' 7 3/4" |
20' |
20' |
20' |
28' |
38' |
Beam |
5' 8" |
5' 8" |
5' 8" |
5' 6 3/8" |
5' 8" |
5' 8" |
6' 9" |
6' 9" |
8' 3" |
Sail Area (Sq. Ft.) |
Main |
135 |
108 |
121 |
154 |
114 |
114 |
216 |
228 |
350 |
Jib |
N/A |
39 |
44 |
66 |
62 |
62 |
N/A |
95 |
150 |
Spinnaker |
N/A |
N/A |
210 |
280 |
265 |
250 |
N/A |
550 |
1200 |
Weight (lbs) |
420 |
440 |
360 |
335 |
595 |
595 |
650 |
965 |
1850 |
Rudders |
1 |
1-2* |
1 |
1 |
2 |
2 |
1 |
2 |
2 |
Crew |
1-2 |
2 |
2 |
2 |
2 |
2 |
2-3 |
3-4 |
5-8 |
March 2008
Portsmouth
Numbers
@ Wind
Velocity |
Beaufort # |
Knots |
Mph |
MC |
M-16 |
Super Scow |
Melges 17 |
I-20 |
M-20 |
C |
E |
A |
0-1 |
0-3 |
0-4 |
89.5 |
94.2 |
N/A |
N/A |
[88.5] |
88.6 |
81.4 |
77.6 |
[63.2] |
2-3 |
4-10 |
5-12 |
87.4 |
90.6 |
N/A |
N/A |
(85.0) |
85.2 |
80.1 |
75.3 |
62.0 |
4 |
11-16 |
13-19 |
87.2 |
88.1 |
N/A |
N/A |
[81.4] |
81.5 |
78.1 |
70.8 |
[56.0] |
5+ |
17+ |
20+ |
86.5 |
87.4 |
N/A |
N/A |
[80.4] |
80.5 |
77.6 |
69.3 |
N/A |
Dixie Portsmouth Number (DPN) |
87.8 |
89.3 |
N/A |
[79.0] |
83.4 |
83.5 |
79.1 |
72.6 |
61.3 |
PHRF
= 6 * DPN - 330 |
196.8 |
205.8 |
N/A |
[144.0] |
170.4 |
171.0 |
144.6 |
105.6 |
37.8 |
|
* M-16: In 1999, the M-16 design was upgraded and converted to use the
MC hull and deck molds and now shares other rigging, such as a single rudder, with the MC.
The rear traveller was removed and the mast is now stationary.
( ) = between 5 and 15 data points
[ ] = calculated number or fewer than 5 data points
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