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 √LWLA 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)
The Hylas 44 from designer German Frers is a center cockpit offshore cruiser known for her good looks and build quality from Queen Long Marine of Taiwan. Introduced in 1984 production spanned eight years before ending in 1992. These days Hylas 44s are particularly popular for their accommodation layout, her idiosyncratic hull shape carries her maximum beam far aft allowing for a wide aft stateroom. You can find them on the market today with variations in the keel configuration (deep or shoal) as well as their rigs with both cutter and sloops being offered.
Queen Long Marine commissioned German Frers to design two cruising sailboats in the early 1980’s. These became the racy Hylas 42 and the more “cruiserly” Hylas 44 in 1984 which now are part of a well known Hylas series of yachts.
The Hylas 44 in particular became popular among charter boat circles in the Caribbean with Bill Stevens of Stevens Charters and then Dick Jachney of Caribbean Yacht Charters (CYC) purchasing most of the boats. Private dealers throughout the world also sold these Hylas yachts. In 1990, CYC became the sole importation agent for new Hylas yachts. By 1992, CYC had Queen Long add a sugar scoop stern to the 44. In 1995, they introduced a wholly new German Frers designed 46 footer with a different cabin trunk, deeper forefoot, and fully integrated swim platform. These 46 Hylas yachts are currently in production as of 2010.
The accommodations are the most attractive feature. All 44’s have a offset berth forward and settee with a private head and shower. The main salon includes a dinette arrangement to port and a starboard settee. Leading to the master stateroom are dual walk-throughs, a tremendously popular feature. Along the port side is the master head and shower while the galley is along the opposite side. The master stateroom has a centerline queen on all except the first thirteen hulls which had a berth offset starboard side.
The hull is solid hand laid up fiberglass by Queen Long Shipyards, the Taiwanese builder. The construction includes an impressive stiffening network of full length fore and aft stringers and transverse floors. The deck is balsa or Airex cored and fastened to the hull via stainless bolts and 5200. Chainplates are massive and tie into glassed over stainless steel I-beams. Queen Long was already well known for their Kelly Petersons and Stevens 47’s before producing the 44.
The Hylas 44 is a wet boat. Offshore, a steady stream of water slides over the fine bow and back to center cockpit because of the low freeboard. You often see complete enclosures. She never pounds but slices through waves. Downwind with her sexy beam at 3.8 ratio, she surfs down waves.
Many Hylas 44s underwent the hard life of a Caribbean bareboat charter. Caribbean Yacht Charters ran a purchase and charter operation out of the British Virgin Islands. The owner saved on the purchase of a new Hylas 44 from Queen Long but leased the yacht into charter for four years. It is difficult to tell between non-chartered and chartered 44s. Tell tale signs are high engine hours, eyebrows along the cabintrunk, and a Hylas logo in the cockpit. Late in production in 1992, Queen Long decided to extend the 44 with a swim platform into the 45.5. This 45.5 has a different deck mold. Subsequently, owners retrofitted 44s with swim platforms. These aftermarket 45.5s often have unique issues.
As of 2010 the asking prices are in the approximate range of:
Hylas 44, 1984-1986 $100k-$150k USD (have smaller cockpits and offset aft berths)
Hylas 44, 1986-1992 $150k-$175k USD
Hylas 45.5, 1989-1992 $175k-$200k USD (aftermarket swim platform)
Hylas 45.5, 1992-1994 $200k-$250k USD (new deck mold, factory swim platform)
This listing is presented by SailboatListings.com. Visit their website for more information or to contact the seller.
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