Method for simulating an engine failure in an aircraft

The method simulates engine failure in SEO mode by desynchronizing engines without standby, ensuring safe training conditions and effective preparation for critical flight scenarios.

FR3161976A1Pending Publication Date: 2025-11-07SAFRAN HELICOPTER ENGINES
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Patent Information

Application Number
FR2024004743
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-05-06
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

Existing training methods for multi-engine aircraft pilots do not adequately simulate critical situations where one engine fails while the aircraft is in Single Engine Operative (SEO) mode, which is a crucial scenario due to the loss of rotor power, and existing simulations are not conducted under safe conditions.

Method used

A method and system that desynchronizes one engine to simulate a failure without putting it into standby, maintaining power to the rotor, and sends a message indicating the failure, allowing pilots to train for engine loss scenarios in SEO mode safely.

Benefits of technology

Enables pilots to train for engine failure in SEO mode under controlled conditions, ensuring safe operation by maintaining power availability and allowing quick resynchronization, thus preparing them for critical flight situations effectively.

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Abstract

This method simulates an engine failure in an aircraft with at least one first engine and one second engine, each engine having a gas generator configured to drive a free-spinning turbine mounted on an output shaft of said engine, each output shaft being coupled to the same aircraft rotor. It comprises the following steps: - desynchronization (M30) of the first engine; - desynchronization (M70) of the second engine without putting it into standby mode; - transmission (M90) of a message representing a failure of the second engine (M1). Figure 2
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