Results tagged “boats” from Green Mesh

Baltimore Boat Show at the Baltimore Convention Center
Wednesday, January 21 through Sunday, January 25, 2009.

The Green Boating Zone will feature eco-friendly boats and accessories, including hybrid boats and products that reduce water and air pollutants.

Featured manufactuer Torqeedo, was awarded start-up company of the year, producing ultra-lightweight, foldable, strong electric outboard motors.

Torqeedo produces lithium-manganese battery systems which allow increased energy density over heavy lead batteries and improved cold operating performance. The batteries also aren't subject to memory effect and according to the manufacturer are more resistant to a reduction of charge capacity over time.

Read on for Baltimore Boat Show schedule.

I am fascinated by machines that blend methods of locomotion we are familiar with and executes them in different combinations. Larry Weirich recently flew his home built hovercraft off of the Goldsboro Marina into the Susquehanna River.

Instead of cutting though the water like a standard boat, a hovercraft floats on a cushion of air and is propelled by pushing air.

Weirich says that if a standard boat and a hovercraft have the same horsepower, the hovercraft will go faster because it doesn't have to deal with the friction of cutting through water.

Some other vehicles and their frictional properties...