Our most commonly used drive types for sailing vessels. Raymarine mechanical linear drives provide powerful thrust, fast hard-over times and quiet operation. Mounted below decks, the linear drive moves the rudder directly by pushing the tiller arm or a rudder quadrant.

A linear drive unit connects to the rudder stock via an independent tiller arm. Accessory fittings from your steering manufacturer may be required. Must be able to back-drive steering system from the rudder.

Mechanical Linear Drive

Drive Type

Type 1

12V: M81130

Type 2 Short

12V: M81131

24V: M81133

Type 2 Long

12V: M81132

24V: M81134

Maximum boat displacement

11,000 kg

(24,000 lb)

15,000 kg

(33,000 lb)

20,000 kg

(44,000 lb)

Peak thrust

295 kg (650 lb)

480 kg (1,050 lb)

480 kg (1,050 lb)

Maximum stroke

300 mm (12")

300 mm (12")

400 mm (16")

Hard-over to hard-over times

11 seconds

11 seconds

14 seconds

Maximum rudder torque

735 nm

(6,500 lb.in)

1,190 nm

(10,500 lb.in)

1,660 nm

(14,700 lb.in)

Power consumption

18-36 W

48-72 W

48-72 W

Corepack used

ACU-200

ACU-400

ACU-400

• A linear drive unit connects to the rudder stock via an independent tiller arm. Accessory fittings from your steering system manufacturer may be required.
• An authorised Raymarine dealer is best suited for installing a linear drive system.
• Must be able to back-drive steering system from the rudder.