The ACE project was created with the aim of designing, developing and validating an electro-mechanical microactuator that will be part of the landing gear blocking system of a civil aircraft, replacing conventional hydraulic systems.

The equipment in which the actuator will be integrated consists of a hook that secures both the trains and the doors in their retracted position. The unlocking of the hook allows the opening of the doors and the extension of the trains at the time of landing. The normal operation of the equipment is carried out by means of a hydraulic system, while the electro-mechanical microactuator to be developed in the project will be used for emergency unlocking in case of failure of the main system.


The process begins with the elaboration and establishment of the technical specifications with the client, agreed and studied later with each partner. This stage is extremely important as it allows the first prototype to be developed through the research and development of these technical specifications.

In Skylife Engineering our team of engineers raises the functional tests, to perfect the project, we come to incorporate improvements in the design, more compact and integrated and the development of a linear current limiter, completely passive, designed with power electronics.


This R+D project is carried out together with companies from the Aeronautics and Aerospace sector, such as Aerotecnic, Catec (Advanced Center for Aerospace Technologies) and the coordination of CESA, through the co-financing of the European Regional Development Fund (FERDER) and the Ministry of Economy and Competitiveness, under the State Program for Research, Development and Innovation Oriented to Social Challenges.

Technical specifications

Design and manufacture of linear EMA with integrated ECU for emergency door release.

  • Function: 2500N Actuator for Uplock Landing Gear
  • Very high reduction ratio
  • Weight: 750 g
  • Program: Falcon 5x

Compliance with standards:

  • MIL-STD-704F
  • DO-160 y MIL-STD-461


At Skylife Engineering, we adapt our products to different industries and according to the needs of each client.
ACE, belongs to the On board System and Movility business line, is part of the pieces we have in production, upon request.