Flight Testing: Analysis of the Spin Dynamics of a Single-Engine Low-Wing Aeroplane

This book investigates the spin regime for normal, utility, and aerobatic aircraft to better understand the phenomenon and its effects on aerodynamics, flight mechanics, and aircraft stability. It varies the main geometric parameters and investigates the subsequent effect on spin characteristic parameters. A literature review summarizes the technical aspects that affect the problem of spinning, and a conventional-geometry, single-engine low-wing aeroplane is instrumented with a digital flight measurement system to conduct 27 spins. Nine observations are proposed to improve flight test programmes, aircraft design processes, flight training materials, and flight safety.

Format: Paperback / softback
Length: 266 pages
Publication date: 07 March 2023
Publisher: Springer Fachmedien Wiesbaden

Spinning remains a significant contributor to around 60% of all aircraft accidents, despite its intricate nature and widespread occurrence. This aerodynamic phenomenon continues to elude a comprehensive understanding, despite the efforts of researchers and aviation authorities. U.S. and European Certification Specifications do not mandate recoveries from fully developed spins of Normal Category aeroplanes, thereby limiting the scope of certification test flights to identify potentially hazardous aeroplane mass and center of gravity combinations.

This book seeks to contribute to a deeper comprehension of the spin phenomenon by examining the spin regime for normal, utility, and aerobatic aircraft. Through a systematic exploration of the effects of varying key geometric parameters, such as center of gravity position and aeroplane mass, within the flight envelope, the book aims to unravel the intricate dynamics that govern the behavior of an aircraft during a spin.

The approach employed involves systematically varying these parameters and closely monitoring the subsequent impact on critical spin characteristics, including angle of attack, pitch angle, sideslip angle, rotational rates, and recovery time. By conducting a comprehensive literature review, the book provides a comprehensive overview of the technical aspects that influence the problem of spinning. It encompasses experimental measurement techniques, theoretical methods, and flight test results obtained by previous researchers. The published findings are analyzed to extract the influence of aircraft geometry, control surface effectiveness, flight operational parameters, and atmospheric effects on spinning behavior.

Furthermore, the book delves into the impact of spinning on human performance, considering factors such as the physiological and psychological effects on pilots. It examines current spin regulations and the availability of training material for pilots to enhance their spin recovery skills.

To facilitate the investigation, a conventional-geometry, single-engine low-wing aeroplane, the Fuji FA-200-160, has been instrumented with a proven digital flight measurement system and 27 sensors specifically designed to capture spin data. This instrumented aircraft serves as a valuable platform for conducting detailed research and analyzing the spin phenomenon from various perspectives.

In conclusion, the book aims to enhance the understanding of the spin phenomenon by investigating the spin regime for normal, utility, and aerobatic aircraft. Through a rigorous analysis of the effects of geometric parameters and a comprehensive review of the relevant literature, it seeks to provide valuable insights into the dynamics and challenges associated with spinning. By shedding light on the technical aspects and human factors that contribute to spinning accidents, the book aims to contribute to the development of safer and more effective flight operations.

Weight: 536g
Dimension: 240 x 168 (mm)
ISBN-13: 9783662632178
Edition number: 1st ed. 2023