The flat part of an oar that is immersed in the water.



Related Terms

STEERING BOARD

A long, flat board or oar that went from the stern to well underwater, used to steer vessels before the invention of the rudder. Traditionally on the starboard side of a ship (the 'steering board' side).

FEATHER

1) To turn the oar blade of a rowing boat horizontally with the top forward as it comes out of the water, so to skim above the water for the return stroke. 2) To point a sail boat higher into the wind to reduce pressure from the sails in a gust.

OAR

A wooden pole with a flat end, the blade, used to propel a small boat through the water.

SALT MARSH

A flat coastal area flooded by most high tides, characterized by various species of marsh grasses and animal life.

BREADBOARD MODEL

Uncased assembly of an instrument or other piece of equipment, such as a radio set, having its parts laid out on a flat surface and connected together to permit a check or demonstration of its operation.

ALLIGATOR SHEARS

A cutting tool with a fixed lower blade and a movable upper blade (shearing arm) that moves in an arc around a fulcrum pin; used mainly for shearing applications that do not require great accuracy.

BOW LINES

The mooring lines extending from the foremost part of a vessel to the shore usually leading forward preventing movement astern.

HATCH BATTENS

Flat bars which are wedged against hatch coamings to secure tarpaulin

FEATHERING

A pitch position in a controllable-pitch propeller; it is used in the event of engine failure to stop the windmilling action, and occurs when the blade angle is about 90 to the plane of rotation. Also known as full feathering.

FAN RING

Circular metallic collar encircling (but spaced away from) the tips of the fan blade in process equipment, such as aircooled heat exchangers; ring design is critical to the efficiency of fan performance.

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