Sorry, you need to enable JavaScript to visit this website.
An official website of the European UnionAn official EU website
English (en)

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: