ST1000 Plus Tiller Pilot. ST1000 Plus tiller autopilot for tiller steered sailing vessels up to 6,600 lbs (3,000 kg), *Note: Always take the fully laden displacement weight of the vessel into account; this is often 20% above the designed displacement,Includes: Instruction Manual, Plus Tiller Pilot 12V Socket, Tiller Pin (sold in packages of 5), Mounting Socket (sold in packages of 5).