TS 2563

TS 2563 is a standard for the concepts, quantities, and symbols used in aircraft stability and control within the field of flight dynamics. It provides a common technical language for describing how an aircraft behaves in motion, how stability is assessed, and how control inputs are represented in analysis and documentation.

Common notation for stability and control work

Aircraft stability and control are built around the relationship between aerodynamic forces, moments, mass distribution, and motion about the aircraft axes. This standard supports consistent use of terms and symbols in those calculations, helping reduce ambiguity when the same quantity might otherwise be named or marked differently across design, analysis, and reporting activities. In general technical context, this means quantities such as velocity, angles, accelerations, moments, and control deflections are handled through shared definitions and notation.

What the standard covers

• Concepts used in aircraft stability and control calculations are included.
• Quantities and the symbols used to represent them are included.
• The purpose is to provide a consistent technical reference for flight-dynamics terminology.
• The reference basis stated for this edition is ISO 1151-4, second edition (1994).

Standards of this type are especially useful in engineering drawings, analysis reports, training materials, and calculation notes. When terminology is aligned, the relationships among aircraft axes, motion components, and control effects are easier to follow, and different teams can use the same physical quantities with the same meaning.