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Nacelle cowl NExt generation Opening System


Nacelle cowl NExt generation Opening System

Call for proposal: 
Link to CORDIS:

NNEOS (Nacelle cowl NExt generation Opening System)

NNEOS project is born to enable the use of new engines architectures like the UHBR (Ultra-High Bypass Ratio) that require shorter and slimmer nacelles and as a result a new approach to maintainability and accessibility of the engine.

Main objectives of the project:

  • Improve safety and accessibility to engine zones for maintenance/reparation through the development of an electromechanical actuator that integrates the functionalities of opening/closing the cowls as well as holding them at the open position during maintenance task;
  • Optimize weight and dimensions with a design that favours the integration within the nacelle available space envelope;
  • At a system level, provide a potential reduction for the volume required for the equipment by 15%;
  • At a system level, the aim is to achieve a 10% weight reduction associated to the system and connections when compared to the current systems being used;
  • Contribute to the reduction of the development time of the future engine architectures by 10%, through the optimisation of system integration for the power plant systems Provide a friendly design that is easy to use but ensures a safe operation of the nacelles;
  • Bring the technology to TRL6.
Institution Type:
Institution Name: 
European Commission
Type of funding:
Programme Other: 
JTI-CS2-2018-CfP09-LPA-01-71 - Innovative Nacelle cowl opening system
Lead Organisation: 

Compania Espanola De Sistemas Aeronauticos

EU Contribution: 
Development phase: