[TG11] Use Type 3 Hydraulic Pump With a 255 cm3 Cylinder

[Tom - Raymarine - Moderator]

It's difficult to give a realistic idea of average consumption because there are so many variables:

Factors which affect the load on the drive:
- boat weight
- rudder size
- internal steering resistance and losses
- sail trim
- sea-state and wind-speed
- point of sail
Factors which affect how frequently the pilot has to drive:
- sail trim
- sea-state and wind-speed
- point of sail
- pilot response level and calibration
- ...

We don't attempt to take all of these into account in order to come up with an average consumption over time. As a very rough guesstimate, though, I'd say that if your drive is averaging anything more than 10-15% of the peak current over time, you have something badly wrong in your setup or sail-trim.

Regards,
Tom