本文通过分析影响航速计算的主要因素，给出了适用于舰船实际航速计算的具体模式。

This paper put forward a model for calculating the actual speed of ships based on the analyse of the influence factors.

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应经常测定计程仪改正率，以便利用计程仪航速推算船位时，将计程仪显示的航速改正为船舶实际航速。

Should always correct determination of the rate-of-way, in order to take advantage of projected Cheng-speed vessel position, the Log will show the correct speed for the actual speed of the ship.

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VTS等海事管理部门及港口生产部门在实际工作中，通常根据经验制定船舶进出港的安全航速和安全距离。

The maritime management department such as VTS and port control usually regulate the ships safety speeds and safety distances when entering or leaving the port according to experience in practice.

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