Abstract
In this paper, the authors tried to represent the manual or autopilot steering regulation by an autoregressive model. At that time, the order of the autoregressive equation was determined by the well-known minimum AIC (Akaike's Information Criterion) procedure. To conclude, it made clear that our stochastic model could describe precisely the steering regulation and moreover we could point out that it was rather disadvantageous in energy consumption of a steering gear that a small vessel armed with the autopilot having the differential (rate) control function.
