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PilotSchool Knowledge Base

Units of Measurement in Aviation

This section outlines the standard units of measurement used in Australian aviation as defined by the Civil Aviation Safety Authority (CASA). Understanding these units is crucial for the safe and efficient conduct of aviation operations. These units are aligned with international standards to facilitate global aviation practices.

Units of Measurement

Weight

  • Unit: Kilograms (kg)
  • Explanation: Kilograms are the primary unit of measurement for weight in aviation, used for determining the weight of passengers, baggage, fuel, and the aircraft itself.
  • Source: Part 91 Manual of Standards 2018 - CASA

Volume (Liquids)

  • Unit: Litres (L)
  • Explanation: Litres are commonly used to measure the volume of liquids, particularly aviation fuel.
  • Source: Part 61 MOS Schedule 3 - CASA

Atmospheric Pressure

  • Unit: Hectopascals (hPa)
  • Explanation: Atmospheric pressure is measured in hectopascals, which is essential for altimeter settings and weather reporting.
  • Source: Part 91 Manual of Standards 2018 - CASA

Runway Dimensions

  • Unit: Meters (m)
  • Explanation: Runway dimensions are typically measured in meters, both in length and width, for consistency and precision in operations.
  • Source: Part 61 MOS Schedule 3 - CASA

Visibility

  • Unit: Meters (m)
  • Explanation: Visibility is expressed in meters and is critical for assessing the minimum conditions for safe takeoffs and landings.
  • Source: Part 91 Manual of Standards 2018 - CASA

Temperature

Understanding these units is fundamental for aspiring pilots, allowing them to interpret critical data and ensure compliance with aviation safety standards. Each unit serves a distinct purpose in the operation and navigation of aircraft, contributing to the overall safety and efficiency of aviation activities.