Aero Eli Servizi is a renowned name in the aeronautical industry, specializing in building ultralight helicopters that combine safety with superior performance. Founded on a passion for flight, the company has continually pushed the boundaries of innovation. Located near Aeroporto Dei Parchi in the Abruzzo region, Aero Eli Servizi produces most of the components for their helicopters in Italy, ensuring high quality and reliability. The YoYo Helicopter, their flagship product, has become renowned for its efficiency and has been certified by Aeroclub d’Italia for educational use, making it a staple in national flight schools.

In a significant step forward, Aero Eli Servizi has partnered with Auryn Aero to enhance the YoYo Helicopter’s technical capabilities. Auryn Aero, known for its cutting-edge aerospace technology solutions, has been tasked with conducting a comprehensive stress analysis and ensuring compliance with EASA CS-VLR regulations. This collaboration aims to elevate the YoYo Helicopter to new heights of performance, safety, and reliability.

Auryn Aero is undertaking a thorough general stress analysis for the YoYo Helicopter. This involves defining the scope of work and ensuring compliance with EASA CS-VLR, CAA BCAR Section VLH, and DFS LTF-ULH regulations. All calculations and assessments are meticulously performed to adhere to these international standards.

The engineering division at Auryn Aero is categorizing and analyzing design loads, including flight loads, ground loads, emergency landing loads, and other miscellaneous loads. This analysis covers symmetrical and asymmetrical maneuvers, gust loads, landing, taxiing, and emergency scenarios, ensuring the helicopter’s structure can withstand these conditions.
A comprehensive structural analysis of the YoYo Helicopter is being conducted, focusing on materials and construction, load paths, and stress distribution for the fuselage structure. The analysis extends to the main and tail rotor systems, including blade and hub design, as well as the landing gear, covering skid design and shock absorbers. Using modern computational techniques such as CAD Design and Finite Element Method (FEM) analysis, Auryn Aero is optimizing these components for enhanced performance and safety.

In evaluating the materials used in the helicopter’s construction, the engineers are looking at aluminum alloys and composite materials for primary structures, and steel and titanium for secondary components. The focus is on the properties of these materials, such as strength, fatigue resistance, and corrosion resistance, ensuring they meet the required standards.
Simultaneously, they are outlining and analyzing the load factors considered in the stress analysis, including flight load factors (positive and negative), ground load factors (taxiing and landing), and emergency load factors related to crash scenarios. This ensures the helicopter can handle these load conditions safely.

To validate the structural and aerodynamic performance of the YoYo Helicopter, Auryn Aero is designing and implementing flight testing procedures. This includes setting test conditions such as altitude, temperature, and load configurations, performing pre-flight checks and in-flight maneuvers, and evaluating test results for performance metrics and structural integrity.
A detailed analysis of the aerodynamics of the main and tail rotors is being conducted to optimize their performance. This involves examining the rotor blade profiles, airflow patterns, and overall aerodynamic efficiency to ensure maximum lift and minimal drag during flight. Alongside this, the Manned Vehicles Engineering Division is analyzing the flight mechanics and dynamics of the YoYo Helicopter to understand its behavior under various flight conditions. This includes studying the stability, control responses, and overall flight characteristics to ensure a safe and smooth flying experience.

Auryn Aero is also conducting rotor dynamics analysis to ensure the stability and performance of the helicopter’s rotors. This involves examining factors such as rotor vibrations, resonance frequencies, and dynamic loads to prevent any adverse effects during operation. Additionally, they are performing a stress analysis on the helicopter’s actuation and control systems, evaluating the loads and stresses on control linkages, actuators, and other control components to ensure they can withstand operational demands and provide reliable control inputs.

Based on the comprehensive stress analysis, Auryn Aero is confirming whether the helicopter’s structural components are correctly designed to withstand required load conditions. Any critical items with negative Margin of Safety are identified, and modifications are suggested to address these issues.

To support this work, Auryn Aero is preparing and providing all necessary documentation, including professional presentations, frame truss identification, stress analysis reports, and references to various amendments and regulations. This documentation forms an integral part of the final report to Aero Eli Servizi.

This strategic partnership between Aero Eli Servizi and Auryn Aero represents a significant advancement in the development of the YoYo Helicopter. By leveraging modern computational techniques and adhering to international airworthiness standards, we aim to enhance the helicopter’s structural integrity, performance, and safety, ensuring it meets the highest industry standards.

This collaboration underscores our commitment to innovation and excellence in the field of advanced aeronautical engineering and technologies.