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Note: Sistership Photos only Now you can be sailing on the award winning and innovative HH44 SC (Sports Cruiser) catamaran sooner, with a production slot now available that has just started construction and is due for completion in June 2026.
The SC already comes standard with eco-drive hybrid diesel / electric motors, lithium batteries, 4.1 kw of Solar, carbon fibre mast / longerong beam / daggerboards, and twin Jefa rotating wheel pedestals as to name a few inclusions, but this boat is fully spiced and loaded with optional extras, which you may choose to alter, but currently includes:
- Workshop / Pantry in Starboard Cabin - Gas BBQ - Side Boarding Gates at Helm Station - 2 x Trampoline Lights - 2 x Davit Lights - Anchor Windlass Chain Counter at Helm - B&G Navigation Package including 3 x 12” Zues3 Plotters, Wind, Depth, Speed, Radar, VHF, AIS - B&G Triton 2 Autopilot and Secondary Autopilot - Hybrid Dual Motor Radio Link - 8kVA Inverter Upgrade - Freezer beneath starboard floor - Folding Panels and Adjustable Legs in Indoor and Outdoor Dining Tables - Schenker Zem100 Watermaker - Clothes Washer / Dryer - 5 Fans - Exterior Canvas Package - Stainless Steel Rocna anchor - Secondary Anchor - Fuel Polishing and Transer pumps - Safety Kit for offshore sailing - Seafire Extinguishers in battery spaces - Side storage pouches in berth - Highfield Ultralight 310 RIB - Rope Cutters - Pre for Starlink - Coppercoat Antifoul - Pre for Self-Tacking Staysail - Prep for reacher / assym - Electric Antal line drivers for daggerboards - Chain plate pin load cells - Harken electric performa winch upgrade - Mast jack cylinder hydraulic pump and hose - Spare parts - North Sails including 3DI Mainsail, Genoa, Staysail, Reacher, Gennaker and Stormsail
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
SA/D = SA ÷ (D ÷ 64)2/3
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Ballast / Displacement * 100
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
CSV = Beam ÷ ³√(D / 64)
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