Harry Valentine

Author and Researcher

Harry Valentine

harrycv@hotmail.com

Mr. Valentine has a degree in mechanical engineering from Carleton University, Ottawa, Canada specializing in thermodynamics (energy conversion) and transportation technology. He has worked as a technical journalist for the past 10-years and has more than 2 decades of research in the transportation industry.

WIG plane

Lion Air Flight 610 and a Fast Maritime Alternative

By Harry Valentine 2019-11-09 19:43:10

Toward the end of October 2019, investigators released their findings into multiple factors which led to the crash of Lion Air flight 610 shortly after taking off from Jakarta on a short domestic flight of 280-miles to a nearby island. The growing demand for fast inter-city transportation in a nation like Indonesia invites discussion about unique market niches for alternative transportation technology that include the maritime option. Introduction While investigators released their findings, the CEO of Boeing Aircraft Company appeared...

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file photo

Revisiting the Case for Windmill Propulsion

By Harry Valentine 2019-10-26 01:30:00

Over a period of centuries, sails formed the basis of wind powered vessel propulsion until German aviation engineer Anton Flettner developed vertical-axis Magnus rotors that used the boundary layer effect to convert wind energy to vessel propulsion. During the latter 20th century, Canadian physics Professor Dr. Brad Blackford built windmill powered boats capable of sailing directly into the wind. During early 1980’s boat race at Halifax, his boat sailed into the wind at greater speed than sail-driven competitors.  Introduction At...

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file photo courtesy of Diamantino Rosa

Adapting the Free Wing to Sailboat Propulsion

By Harry Valentine 2019-10-20 01:27:26

During the mid-1940’s, an innovation called the “free-wing” was developed in the U.S. to improve flight stability of small aircraft. A flap mounted at the end of a long lever that extended rearward behind the wing, maintained wing angle during flight. The free-wing concept may be adapted to sailing vessels propelled by an aeronautical-style airfoil-sail or wing-sail in place of a more traditional fabric sail.  Introduction Using traditional sails to propel a boat requires that each crew member be highly...

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file photo

Future Arctic Navigation and Northwestern Atlantic Ports

By Harry Valentine 2019-10-13 18:21:10

The looming prospect of trans-Arctic ship navigation has prompted China’s ship industry to develop container ships capable of seasonally sailing through the Russian side of the Arctic, ferrying containers between Eastern Chinese ports and Western European ports. Due to comparatively shallow draft, Chinese trans-Arctic ships are being built to small size and intended to carry medium priority container traffic between China and Western Europe, with railways carrying high priority containers. The increased sailing draft through the Canadian side of the...

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Hydrofoil

Applying Rollers to Hydrofoils and Sails

By Harry Valentine 2019-10-05 22:50:47

Many technical innovations developed in the aeronautical industry have successfully been adapted maritime application. Several years ago, a model airplane builder installed transverse axis, cylindrical paddle wheels into the top sides of airplane wings to allow for extremely low flight speeds. Adapting that innovation to maritime application offers the promise of improving hydrofoil performance, airfoil-sail performance, boat rudder performance and kinetic ferry propulsive performance. Introduction It is possible in transportation history that innovations first developed in the maritime sector might...

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file photo

The Rise and Decline of Kinetic-Hydraulic Power

By Harry Valentine 2019-09-21 19:05:28

Some 10 years ago, there was great interest in kinetic free flow turbines able to generate electric power from rivers, ocean currents and tidal currents as well as from coastal ocean wave conversion. While still being considered in some regions, interest in the technology has declined. Introduction The practice of converting power of rivers to mechanical work dates back over some 4,000 years to Ancient Greece, when innovative people built a mechanism to use river energy to convert grain such...

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Cancun, Mexico

Cruise Ships and Caribbean Region Power Generation

By Harry Valentine 2019-09-05 19:08:11

Evolving developments in power generation in countries located around the Caribbean Sea enhances prospects of sailing LNG powered cruise ships in this region. Introduction Many of the countries and regions located in and around the Caribbean Sea have endured problems generating and distributing electric power. Several locations generate local grid scale electric power using marine piston engines that consume diesel fuel and even bunker fuel. The rise of fuel prices in recent decades, along with increasing demand for electric power...

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Images courtesy of EagleRail

Container Port Congestion and Overhead Railway Transfer

By Harry Valentine 2019-08-31 20:56:49

While container ships have increased in size to reduce transportation cost per container, ports have become congested increasing the amount of time required to transfer containers between larger and smaller ships, also between large ships and overland transportation. In the future, even larger container ships will require ports to develop faster methods for transferring containers off and on the super-size ships, using less waterfront port terminal area. Of the technologies being considered to facilitate faster transfer of containers at ports,...

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Courtesy of Greenbrier Marketing

Moving More Containers Through Congested Ports

By Harry Valentine 2019-08-22 18:46:18

The introduction and operation of ever larger container ships challenges ports to rapidly quickly move increasing volumes of containers through their terminals. One option could involve possible modifications to trucks and trains that move containers. Introduction On August 9, 2019, a ship carrying almost 24,000 TEUs sailed through the Suez Canal, and plans are underway to further develop the canal to transit deeper and possibly wider ships. Within the next few years, major Asian and European container transshipment terminals might...

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Jesse Richman, an American kitesurfer and kiteboarder (source Wikipedia)

Renewable Energy in Future Water-Based Sport

By Harry Valentine 2019-08-17 18:19:19

The combination of climate change, the growing need to convert to renewable energy and new technical developments in watercraft provides the basis to develop new forms of water-based competition. Introduction The history of athletic competition dates back to Ancient Greece. Competitive wind-powered sailing dates back to the late 1600’s with competitive rowing dating back to the same time period. Over the centuries and decades, the technology of both oar driven and wind driven boat propulsion has advanced. Modern wind-powered competition...

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