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The Aerodyne 47, a fractional solent-rigged sloop was designed by Roger Martin and built in South Africa by Aerodyne Marine.
Underwater Configuration: Shoal draft bulb keel & spade rudder
Hull Material: Composite
Length Overall: 46'7" (14.2m)
Waterline Length: 42'1" (12.8m)
Beam: 14'4" (4.4m)
Draft: 6'0" (1.8m)
Rig Type: Fractional solent-rigged sloop
Displacement: 25,370lb (11,532kg)
Designer: Roger Martin
Builder: Aerodyne Marine (South Africa)
Year First Built: 2001
Year Last Built: 2007
Number Built: 3 (The Aerodyne 47 pictured above, 'Pandora', was build #3)
1. Sail Area/Displacement Ratio: 17.5
2. Ballast/Displacement Ratio: 40.7
3. Displacement/Length Ratio: 152
4. Comfort Ratio: 26.0
5. Capsize Screening Formula: 1.9
1. A Sail Area/Displacement Ratio of 17.5 suggests that the Aerodyne 47 will, in the right conditions, approach her maximum hull speed readily and satisfy the sailing performance expectations of most cruising sailors.
2. A Ballast/Displacement Ratio of 40.7 means that the Aerodyne 47 will stand up well to her canvas in a blow, helping her to power through the waves.
3. A Displacement/Length Ratio of 152, tells us the Aerodyne 47 is clearly a light displacement sailboat. If she's loaded with too much heavy cruising gear her performance will suffer to a degree.
4. Ted Brewer's Comfort Ratio of 26.2 suggests that crew comfort of an Aerodyne 47 in a seaway is similar to what you would associate with the motion of a coastal cruiser with moderate stability, which is not encouraging news for anyone prone to seasickness.
5. The Capsize Screening Formula (CSF) of 1.9 tells us that an Aerodyne 47 would be a safer choice of sailboat for an ocean passage than one with a CSF of more than 2.0.
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