Kitchen gear is opened up to direct an increasing proportion of thrust aft. As the balance changes the vessel will move ahead. Moving astern The Kitchen gear is closed to direct an increasing proportion of thrust forward. As the balance changes the vessel will move astern. See also Notes External links Description near the foot of the article under Pinnace Kitchen Rudder - Diagrams Kitchen Rudder - Discussion and diagrams Manoeuvring device for boats: United States Patent 4895093, expiring in fall 2007 Special rudders and manoeuvering devices U.S. patent 1,186,210 U.S. patent 4,895,093 Propellers Marine propulsion Fluid dynamics