Super Maramu

Sailboat specifications

The Super Maramu is a 52’6” (16m) cruising sailboat designed by Henri Amel (France) and Jacques Carteau (France). She was built between 1988 and 1999 by Amel (France) with 243 hulls completed.

Super Maramu's main features

Model: Super Maramu
Hull type: Monohull
Category: Offshore cruising sailboat
Sailboat builder: Amel
Sailboat designer: Henri Amel & Jacques Carteau
Country: France
Construction: Hull and deck: GRP (glass reinforced polyester)
Number of hulls built: 243
First built hull: 1988
Last built hull: 1999
Appendages: Keel : L-shaped keel (with bulb)
Helm: Single helm wheel
Rudder: Single rudder on skeg
Unsinkable: No
Trailerable: No
EC design category iThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions) A: Wind < force 9, Waves < 10m B: Wind < force 8, Waves < 8m C: Wind < force 6, Waves < 4m D: Wind < force 4, Waves < 0,5m: A
Former French navigation category: 1
Standard public price ex. VAT (indicative only): N/A €

Super Maramu's main dimensions

Hull length: 52’ 6”16 m
Waterline length: 41’ 4”12.6 m
Beam (width): 15’ 1”4.6 m
Draft: 6’ 8”2.05 m
Mast height from D_WL: 65’ 8”20.02 m
Light displacement (M_LC): 27558 lb12500 kg
Ballast weight: 10251 lb4650 kg
Ballast type: Lead
French customs tonnage: 30.10 Tx

Super Maramu's rig and sails

Upwind sail area: 1281 ft²119 m²
Downwind sail area: 1528 ft²142 m²
Mainsail area: 377 ft²35 m²
Mizzen sail area: 205 ft²19 m²
Mizzen staysail area: 215 ft²20 m²
Genoa area: 700 ft²65 m²
Jib area: 215 ft²20 m²
Symmetric spinnaker area: 732 ft²68 m²
Rigging type: Ketch Marconi (in-mast furling mainsail) masthead
Mast configuration: Deck stepped mast
Rotating spars: No
Number of levels of spreaders: 2
Spreaders angle: 0 °
Spars construction: Aluminum spars
Standing rigging: 1x19 strand wire discontinuous

Super Maramu's performances

Upwind sail area to displacement iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds. The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size. Upwind: under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 25 it indicates a fast sailboat.: 238 ft²/T22.09 m²/T
Downwind sail area to displacement iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds. The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size.: 244 ft²/T22.65 m²/T
Displacement-length ratio (DLR) iThe Displacement Length Ratio (DLR) is a figure that points out the boat's weight compared to its waterline length. The DLR is obtained by dividing the boat's displacement in tons by the cube of one one-hundredth of the waterline length (in feet). The DLR can be used to compare the relative mass of different sailboats no matter what their length: a DLR less than 180 is indicative of a really light sailboat (race boat made for planning), while a DLR greater than 300 is indicative of a heavy cruising sailboat.: 177
Ballast ratio iThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared. The higher the ballast ratio is, the greater is the stability.: 37 %
Critical hull speed iAs a ship moves in the water, it creates standing waves that oppose its movement. This effect increases dramatically the resistance when the boat reaches a speed-length ratio (speed-length ratio is the ratio between the speed in knots and the square root of the waterline length in feet) of about 1.2 (corresponding to a Froude Number of 0.35) . This very sharp rise in resistance, between speed-length ratio of 1.2 to 1.5, is insurmountable for heavy sailboats and so becomes an apparent barrier. This leads to the concept of "hull speed". The hull speed is obtained by multiplying the square root of the waterline length (in feet) by 1.34.: 8.62 knots