We just linked to an interesting little blog, Naval Architect and His
Profession. One of the postings on there was a basic “How to Measure
Pitch” article that gives a very simple overview of pitch and how to
visualize pitch.
A propeller can be defined as follows: A mechanical device formed by two or
more blades that spin around a shaft and produces a propelling force in
ships/boats.
There are various technical terms to define the propeller’s characteristics
such as: diameter, pitch, disc area relation, hub, bore etc. All these
characteristics are calculated to design the optimal propeller accordingly to
specific needs of the ship owner and ship characteristics.
In this blog entry, we are going to define what is the propeller pitch and
the importance at the time to select it.
Pitch: Is the displacement a propeller makes in a complete spin of 360°
degrees. This mea... (more)
NEW YORK, Jan. 25, 2012 /PRNewswire/ -- Reportlinker.com announces that a
new market research report is available in its catalogue:
Energy Harvesting in Action
http://www.reportlinker.com/p0184197/Energy-Harvesting-in-Action.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Electric_power_energy
Ambient energy
Energy harvesting is the use of ambient energy to provide electricity for
small and or mobile equipment, whether electrical or electronic. It is
concerned with providing relatively maintenance free, long life equipment,
reducing the need for batteries. As is typical in... (more)
CORONADO, CA -- (Marketwire) -- 01/26/12 -- With Valentines' Day just around
the corner, couples from coast to coast are looking for the perfect romantic
getaway -- and Coronado Island fits the bill. A favorite among San Diego
locals, this relaxed California beach town features a flat sand beach, spas,
art galleries and yacht marinas, as well as a tree-lined, mile-long Main
Street. In fact, exploring Coronado by bike is a wonderful way for couples to
see the sites and spend quality time with one another.
Located just across the bay from downtown San Diego, the Coronado Island
Ma... (more)
When we design surface drive systems, we always look at hull design in terms
of the need to measure resistance. However, there is another critical factor
that is often overlooked when fast craft are designed: Crew and passenger
comfort.
From a design or engineering standpoint, any vessel can be made to go fast or
achieve certain speeds, given enough power, torque, and propeller thrust.
However, the human body can only withstand a certain amount of force before
sustaining injury. Going fast provides no benefit if your personnel or
passengers are injured during the voyage.
Fran... (more)
SEATTLE, Jan. 26, 2012 /PRNewswire/ -- Windstar Cruises, which operates a
fleet of three luxury sailing yachts that explore hidden harbors and secluded
coves of the world's most treasured destinations, offers two Greek Isles &
Turkish Delights itineraries between Athens, Greece and Istanbul, Turkey this
spring, summer and fall on the 148-guest Wind Star and Wind Spirit.
Greek Isles & Turkish Delights I
Set sail from Athens on a journey through history, from Minoan ruins on
Santorini to the Celsus Library at Ephesus. As you pull in to the harbor, the
stunning white-washed building... (more)
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