The hydraulic linear drive system is designed for boats with existing mechanical steering systems, not hydraulic steering systems. It provides a totally isolated autopilot steering system consisting of:

Hydraulic ram: a self-contained autopilot steeringcylinder with a load limiting system and a built in clutch (to allow friction-free steering when the autopilot is not in use).

Reversing hydraulic pump: powers the hydraulic ram.

Hydraulic fluid reservoir: supplies hydraulic fluid to the system

Helm speed	Hardover to hardover time (+/- 35º, no load) 10 sec
Maximum rudder torque	11,300 lb.in(1,270 Nm)
Maximum stroke	10 in(254 mm)
Maximum vessel displacement	48,500 lb(22,000 kg)
Peak thrust	1,290 lb (585 kg)

• hydraulic ram
• hydraulic pump
• hydraulic pipes
• fluid reservoir (supplied fitted with transit cap; standard cap also supplied)
• hydraulic fluid (to fill reservoir)
• tiller pin assembly consisting of: tiller pin,R-clip, top washer, lock washer, nut (UNC nylock)