steel
The additional underwater surface of the bilge keel creates extra resistance to the side-to-side rolling of the hull, but does not stop rolling altogether.
The bilge keel is fitted at right angles to the bilge radiused plating but does not extend beyond the extreme breadth line . It positioned after model test to ensure minimum resistance to forward motion of ship .
bow bilge stern deck mast sails keel rigging hull bulkhead
They are NOT very similar, although they may have a streamlined aerofoil cross-section (to reduce drag). Bilge keels (& most keels) serve to stabilise the vessels course and to prevent drift to leeward; so in some ways are similar to an aircrafts's fin (UK) or vertical stabilizer (US). The secondary function of a bilge keel is to allow the boat to settle in a stable manner at low tide.
the bilge
Bilge Elif Turhan's birth name is Bilge Elif Ozkose.
Bilge Kösebalaban was born in 1980.
Gazanfer Bilge died in 2008.
Gazanfer Bilge was born in 1924.
Bilge Ebiri was born in 1973.
Bilge Qaghan died in 734.