|HYDRO LANCE CORPORATION|
The 'H.A.R.T.H.' TECHNOLOGY
High Aspect Ratio Twin Hull
Stability and Sea Keeping When It Counts - Always
What will real Ocean Vessel Stability Mean To Ocean Surface Transport Safety?
THE HYDRO LANCE HARTH TECHNOLOGY ...
|Additional Information: Click underlined highlighted links, pictures or light bars ...|
|All Hydro-Lance vessels
simple displacement hulls, with the same math
calculations used for weight displacement of a rowboat,
or a full sized cargo ship. However, because
conventional ships require large amounts of freeboard (that
distance from the water's surface to the top of the hull)
to prevent crashing waves from rolling over the
deck (deck-wash), the tonnage of conventional ship displacement often far
exceeds the intended use. For example, the cruise
ship Stattendam is a 55,451 metric ton vessel and will carry 1,266
passengers plus a crew of 704; that's 28 tons of ship for every person!
Conventional vessel design just gets real heavy simply to provide the
space demanded for luxury cruise passengers, such as ball rooms, suites,
formal dining rooms and swimming pools - all inside a heavily ribbed
tub. Otherwise that ship's displacement, with HARTH technology,
would diminish significantly, having the house and interior configured
in rectilinear space which can house an amazing amount of passengers and
cargo in comfort. The width and clear-span spaces is the
difference relative to the volume - and the laden weight required
Conventional ships have unlimited freeboard (extra tonnage and vertical size to the main deck) to accommodate the predictable hog and sag, bow plows and deck wash in elevated sea states. The Hydro-Lance formulates this excess and therefore a lesser tonnage ship may more efficiently and safely accommodate the same mission or application. Even the house is far above the oceans surface and is mostly rectilinear, though stream lined for aerodynamic air and wind management. The house is designed and frequently structurally separate (intimately adjoined) to the main structural components allowing for modular construction. One modest sized 2,000 gross metric ton Hydro-Lance vessel could carry a cargo of perhaps, 1,000 tons (that's a lot of people and baggage), while having a significantly higher interior volume of usable rectilinear space to accommodate passenger comfort, ball rooms, state rooms, and common spaces. This is due to the entirely different construction geometry of the Hydro Lance. With normal speeds of 3-7 times greater than that of conventional vessels, and seven times the fuel economy, many more routes are competed in the same time period that the conventional vessel completes just one trip. This of course, translates to revenue and economics.
The term 'bow wave' or 'bow wake' is often lumped together with the drag calculations of conventional vessels. While understandable, this can be a mistake. The reason is that the cruising speed of existing conventional ships is dramatically reduced in smooth or high force sea states from bow wake alone. The Hydro Lance has no, or negligible bow wake. Conventional ships follow ocean contours (waves) up and over each wave. Either that ship crashes directly into the wave (that wall of water) or it bow crashes into the trough on the down side of the wave. That slows down conventional ship speeds dramatically - and is why the rated cruise speeds are established only in calm seas. During passage over the crest or peak (the fulcrum) of the wave contour, today's ships experiences hog, sag and dangerous structural stresses, which has broken many large ships in half , then only to sink in minutes or seconds. Our research taught us that the ocean wave contours may appear to conventional ships as a "wall of water", but that is not quite true. The ocean surface is a pattern of moguls, and the Hydro Lance's unique design formulas, average these forces of wave contours to an approximately 'zero' influence, while penetrating each wave straight on, without experiencing heave, pitch, roll, yaw or sway. This is true in either a heading, following, quartering or beam seas.
The Hydro-lance ship is not a catamaran; which must also follow ocean contours and will frequently bow crash in just modestly elevated sea states of Force 5 or 6 Beaufort. The wave fills the tunnel between hulls with water (non-compressible) resulting with dangerous structural stresses - and is certainly very uncomfortable with slamming, not to mention heave. The hulls of large Hydro-Lance ships, may be from 60 feet to over 1,600 feet long(+). Such larger HARTH vessels may remain smooth in Force 9 -11 Sea States (Blue Water Class), even with the ship's rated higher speeds maintained. These HARTH vessels are first designed for the ocean, rather than for a boat slip. The stability of the HARTH Hydro Lance ship allows it to be safely moored outside a break water and it's ability of tractor-turns with reverse thrust allows for tight harbor maneuverability and superior station keeping. The shallow draft can allow access to unimproved beach access ... no heave or roll to chafe the hull ... and the hull design means low or no wake and low water disturbances.
HARTH OCEAN-LINERS HARTH PATROL INTERCEPTOR
Hulls are of aircraft type construction, though compartmentalized, and are foam back-filled for a safe reserve buoyancy. Smaller HARTH powered yacht type vessels will have hull lengths which are much shorter, depending on the customer defined mission, size and luxury features desired. Water plowing, bow plows, wake and hull drag are reduced by over 80% due to the specialized hull designs. View this typical hull frontal view of a HARTH MSAC Yacht.
.Wetted Drag: Surface wetted drag (friction), has
troubled marine designers throughout history, as the
second barrier to increased hull speed design. Hulls sliding through the water directly interfaces the
water with predictable resistance. The
Hydro-Lance HARTH technology has overcome this,
with reduced cross section, no bow wake, reduction of the
Bernoulli effect and a proprietary system, that provides for an efficient
layer, between the hull and the water resulting in further reduced drag, higher speeds
and significantly greater
Gas turbine turboprop drives or direct thrust gas turbines, mounted high above the ocean surface, near the rear of the house, is becoming a desirable option. Diesel engines with gear box drives, closed cycle systems, allowing use of bio-fuels, acetylene, LNG, CNG, hydrogen fuels, the newer SCORE direct-drive rotary diesel combustion engines, electric driven jet pumps, gas turbines with direct thrust, and even the newest rotary any-fuel engines, just to mention a few of the customer - partner-client options available. The Hydro Lance can utilize most all forms of prime and auxiliary power systems. Hydro Lance Engineering considers the power-to-weight-ratio and over-all efficiencies to be particularly significant with any combination of both prime and auxiliary power options.
Ecology Advantage: Some of these options, such as new closed cycle, totally silent, mono-tube closed cycle steam orbital piston systems can allow for the use of hydrogen fuel developments and most other available 'green fuels' leading to improved ecological benefits and any-fuel flexibility of availability. The greater fuel savings of the HARTH reduced drag design, regardless of the fuel medium, will immediately reduce pollution vs. the conventional ship having either clean or dirty burning fuel, by seven times - comparing the displacement ton mile or passenger mile operational economies of like-fueled conventional ships.
Fuel Use: Utilizing gas turbines, either JP-4, heating oil #2, or certain green fuels, such as certain vegetable oils, ethanol, acetylene and even Hydrogen, can be designed in, or even retrofitted at a later date. Having very significant reductions of drag, fuel consumption per ton nautical mile traveled, regardless of the power plant or fuel utilized, is reduced by up to seven times as compared with other existing powered ships, including mono-hull ships, SWATH, tri-hull, SLICE, hydroplanes, wave-piercing, ground effect vessels, hovercraft, tri-maran or catamaran vessels.
Efficiency: Each of these
other conventional vessels will typically
have deep drafts, relatively broad hull beams, bow wake and are all forced by design,
to follow ocean surface contours at even a modest
Force 6 Sea State. You may also note that
each of these conventional vessels have their speed ratings designated in calm water - while the Hydro Lance
designated it's speed rating at 80% the highest specific vessel
Sea State; which is a huge difference by itself. Those energy differences
may be even greater for systems such as
ground-effect ships and
hover-craft, which use significant
amounts of energy for lift to escape the drag of water. The
Hydro-Lance ship requires no lifting energy, and has
a shallow draft, low wake, and reduced
Because the Hydro-Lance ship has the
house separate from, and far above the displacement hulls, each component can be separately designed for the specific
client mission of the ship. The speed of the Hydro Lance
with higher fuel efficiencies allows for 3-8 times the trips in
market than today's existing conventional ships, and do so even
in elevated sea states.
Accordingly, the displacement tonnage
can be reduced while the cabin space can be increased,
for a better cost efficiency. Constructing up
to eight decks (the house) above
superstructure can be accommodated; and these decks are
big; perhaps 100 -250 feet wide and 200-600+ feet long, depending on
the ship size and mission design. HARTH technology changes the rules of
ocean transport and the design of
new ships - for the better.
However, sometimes two smaller HARTH ships, for market flexibility, may be a
better investment than one very large vessel .. especially if those smaller
ships have greater range, economies, comfort, speed and a shallow
draft. This then, affords new and
expanded market destinations and allows for
port changes coincidental with dynamic market demand
changes - even shallow bays and
HARTH HEAVY LIFT SHIPS
Aircraft Flight Pontoons:
Special modifications of the proprietary HARTH hulls can allow mounting of these fast hulls to large aircraft, including large jet aircraft, for landings and take-offs in the ocean with more safety and comfort in elevated sea-state environments. The stability and hull speed of the HARTH pontoon system provides for these landings or take-offs up to a low Force 6 Sea-State Beaufort ...
HARTH High-Speed Flight Pontoons HARTH Flightless Float-Plane Ferry
Flight-Less Float Planes:
Similarly, is the re-cycle of 'retired' airline passenger-liner aircraft which may be converted to Flight-Less Float Planes ocean surface fast ferries. These 'capital economic' conversions result in very high-speed passenger and cargo ferries capable of smooth sailing through calm or elevated sea-states - without sea-sickness, pitch. roll or heave .
Above: HARTH Super-Sized, Ultra-Stable Ocean-Based Platforms - Shown: Stable Ocean sea-steading Township and a Large LNG Terminal
Certainly there are many more questions that you may have, or an interest to secure License,. to purchase or to operate. You may wish to contact Hydro Lance Corporation or Hydro Lance Engineering, Inc., which may be accessed on the " Contacting Our Offices" page link below. Our senior staff will help with your questions, and assess your interests feasibility to an appropriate HARTH design and the appropriate license-procurement-build procedure for licensed operational participation. Or, you may wish to view the 'How Does It Work?' or the Site Directory pages.
And There Is So Much More ...
Above: New markets for Retired Airliners Fast HARTH LNG Transport Ships HARTH Fast Pleasure Boats
Copyrighted @2013-1999, Hydro Lance Corporation. ALL RIGHTS RESERVED.
Patents, Copyright, Intellectual Property and the
H.A.R.T.H. Technology is the sole property of the Hydro
Lance Corporation and the Inventor; Robert P. Price.
Reproductions to any part of this web site, or any use of
the H.A.R.T.H. technology is forbidden, unless
under specific license agreement with the Hydro Lance Corporation, or by specific written and signed permission being provided by the Hydro Lance