Removable stabilizing fin for a watercraft

A stabilizing fin assembly for use with a watercraft, said fin assembly comprising:

• a mounting structure constructed and arranged to be fixedly attached to a side portion of a hull of said watercraft;
• a stabilizing fin structure constructed and arranged to be removably mounted to said mounting structure such that when said mounting structure is fixedly attached to said hull said stabilizing fin structure being disposed externally of said hull and adjacent said side portion of said hull in an operative position wherein at least a portion of said stabilizing fin structure extends into a body of water while said watercraft is in a normal upright position;
• and
• a releasable securement structure constructed and arranged to be disposed in a releasably secured position wherein said releasable securement structure releasably secures said stabilizing fin structure to said mounting structure with said releasable securement structure and said mounting structure cooperating to releasably retain said stabilizing fin structure in said operative position thereof, said releasable securement structure constructed and arranged to be moved from said releasably secured position to a released position wherein said releasable securement structure releases said stabilizing fin structure from said mounting structure so as to permit said stabilizing fin structure to be removed from said operative position thereof, and being accessible entirely externally of said hull without the need for accessing an interior of said hull for movement between said releasably secured and released positions thereof,
• wherein said mounting structure has a threaded bore, said stabilizing fin structure has a fastener receiving opening, and said releasable securement structure comprises a threaded fastener, said threaded fastener being inserted through the fastener receiving opening of said stabilizing fin structure in said operative position thereof and threaded onto the threaded bore of said mounting structure to provide the releasably secured position of said releasable securement structure.

A stabilizing fin assembly for use with a watercraft, said fin assembly comprising:

• a mounting structure constructed and arranged to be fixedly attached to a side portion of a hull of a watercraft;
• a stabilizing fin structure constructed and arranged to be removably mounted to said mounting structure, said stabilizing fin structure being disposed externally of said hull and adjacent said side portion of said hull;
• and
• a releasable securement structure constructed and arranged to cooperate with said mounting structure to releasably secure said stabilizing fin structure to said mounting structure, said releasable securement structure being accessible entirely externally of said hull,
• wherein said mounting structure has a threaded bore, said stabilizing fin structure has a fastener receiving opening, and said releasable securement structure comprises a threaded fastener, said threaded fastener being inserted through the fastener receiving opening of said stabilizing fin structure and threaded onto the threaded bore of said mounting structure to releasably secure said stabilizing fin structure to said mounting structure.

A stabilizing fin adapted to be affixed to a watercraft via a mounting structure, comprising:

• a shell defining an elongated body of the fin having an interior surface defining an interior chamber, such that the elongated body is hollow;
• said interior surface including at least one interlocking member within the interior chamber;
• and
• said shell defining an opening through the body, permitting access to said interior chamber.