Units for Speed

Verified from official sources
Chapter 6 -Human factors and safety managementVersion 2Effective -Verified 29 August 2026

In plain language

Speeds are normally written in knots (kt). If a speed is below 50kt, it may also be shown in metres per second (m/s).

Requirement as structured

Speed is expressed in knots (kt), but speeds below 50kt may also be expressed in metres per second (m/s).

Original regulatory text

• Speed is expressed in knots (kt) o Note: Speeds below 50kt may also be expressed in metres per second (m/s)

Applies when

country
United Kingdom
regulatory category
General