Paint Hangar for Wide-Body Aircraft

A global benchmark for STTS and WSP in paint hangars for wide-body aircraft


  • Toulouse, Haute-Garonne, France



  • Aviation Design
  • Aviation Planning
  • Project Management for Aviation
  • (View all)


  • STTS

Project Status

  • Completed in 2010

Paint Hangar for Wide-Body Aircraft

This paint hangar for wide-body aircraft was our first project for STTS (Société Toulousaine de Traitement de Surface). The design phase started in June 2008 and the project was delivered in March 2010, one month ahead of schedule. It has become a global benchmark for both STTS and WSP.

Floor area
9,600 m²
25 m
Usable volume
55,500 m³

Understanding the Mandate

STTS hired us to design and build a paint hangar for wide-body aircraft, to allow painting of A380 models. The cost of the work was EUR 24 million, and the floor area covers 9,600 m².

The main issue for the client was to optimize paint hangar operating costs, which is a significant factor in aircraft painting costs.

Our team delivered the following:

  • Agent for the project management team

  • Project management for the technical and structural work packages

  • Construction supervision

  • Site supervision and coordination

  • ICPE (Installations Classified for the Protection of the Environment)

  • Summary Report

  • Project management - paint (platform crane, tail dock)

We first sought to maximize the volume of the hangar while allowing for adequate ventilation and ensuring optimal air flow velocity in the painting areas.

The velocity must be less than 0.8 m/s to avoid clouds of paint forming between the gun and the surface to be painted, and more than 0.3 m/s in order to comply with the health and hygiene requirements of the French health authorities. Consequently, we:

  • Cut the volume of the painting hangar in half

  • Ran multiple airflow models in the hangar

  • Used induction air diffusion systems to further reduce the treated air flow rates

Finally, we tried to minimize the weight of the metal framework.

Ultimately, our work led to a two thirds reduction of air flow rates. In addition, the hangar is an optimized Fire Protection Facility.