Scow Family Specifications Including Portsmouth and PHRF Numbers
(last updated:

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" 7' 6' 9" 8'
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 2000
Weight (lbs) 420 440 360 300 595 595 650 965 1850
Rudders 1 1-2* 1 1 2 2 1 2 2
Crew 1-2 2 2 2 2 2 2-3 3-4 6-8
April 2006
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 89.6 94.4 N/A N/A [88.5] 88.6 81.4 77.6 [63.2]
2-3 4-10 5-12 87.5 90.7 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) 87.9 89.4 N/A N/A 83.4 83.6 79.1 72.6 61.3
PHRF = 6 * DPN - 330 197.4206.4N/AN/A170.4171.6144.6105.637.8

* 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