Boat with reconfigurable running surface for wake adjustment

A watersports boat comprising:

• a hull having an underside extending from a forward bow to an aft transom along a longitudinal centerline, the underside defining a running surface that contacts water when the hull moves therein, the running surface including a planing mode trailing edge and a pre-planing mode trailing edge;
• an aft running surface section of the hull including port and starboard recesses formed in opposed corners of the aft running surface section and spaced outboard the centerline, each of the recesses having a substantially continuous upper surface extending from a respective step at a forward end thereof aft to a respective aft edge thereof;
• and
• port and starboard aft hull side surfaces tapering inboard and downwardly toward the centerline moving aft, the upper surface of the port side aft hull side surface sharing a common boundary line with the port recess, the upper surface of the starboard aft hull side surface sharing a common boundary line with the starboard recess;
• wherein:
• the steps form the planing mode trailing edge where water disengages from the aft corners of the aft running surface section when the boat travels in planing mode and
• the aft edge of the recesses form the pre-planing mode trailing edge where water disengages from the aft corners of the aft running surface section when the boat travels in pre-planing mode;
• and
• no repositionable surface is located below the substantially continuous upper surface of either the port or starboard recess;
• and
• an opposed pair of extendable plates configured to move between a stowed position and an active position wherein, in the stowed position, a terminal edge of each stowed extendable plate is located aft the transom such that it does not substantially redirect water flowing past the transom, and, in the active position, the terminal edge of each extended extendable plate extends beneath the aft running surface section such that it redirects water flow leaving the aft running surface section.

A watersports boat comprising:

• a hull having an underside extending from a forward bow to an aft transom along a longitudinal centerline, the underside defining a running surface that contacts water when the hull moves therein;
• the running surface including a bow section and port and starboard midship running surface sections separated by a keel member distinct therefrom and extending port and starboard of the keel line, the port and starboard midship running surface sections becoming more horizontal in an outboard direction at a greater rate than the keel member moving aft to an aft running surface section;
• the keel member having a keel member lowest point lower than an aft running surface section lowest point, the keel member inclining toward the aft running surface section aft the keel member lowest point and forward a propeller positioned beneath the aft running surface section;
• and
• an opposed pair of extendable plates configured to move between a stowed position and an active position wherein, in the stowed position, a terminal edge of each stowed extendable plate is located aft the transom such that it does not substantially redirect water flowing past the transom, and, in the active position, the terminal edge of each extended extendable plate extends beneath the aft running surface section such that it redirects water flow leaving the aft running surface section.