The 7147 is a compact but powerful cylinder that can be configured to turn manual steering into power-assisted steering, by adding a full power follow-up valve and servo-cylinder onto the main cylinder.
The 7147 is best used on boats that are 30' to 80' long (9.15m to 24.4m) long, where less turns in manual mode are desired. A source of hydraulic pressure is required to govern this cylinder, and it is capable of handling up to 8 gallons (36.3L) of fluid per minute at 1000 PSI (68.7 BAR). A key feature is redundancy, allowing for switching back to manual steering should the full power follow-up functionality fail.