The S4 wind tunnel has been specifically designed and built for the calibration of anemometers. The flow in the test section and the procedures followed by the LAC/IDR meet all the requirements of ENAC, MEASNET e IECRE. It has been in operation since 2003 and has calibrated more than 30.000 anemometers.



It is a open-circuit, closed-chamber, current-blown wind tunnel. Its main features are:

  • Test chamber:
    • Square section of 0.9 m on each side.
    • Length 1.2 m.
  • Maximum speed 30 m/s
  • Turbulence intensity <0.1%.
  • Uniformity >0.1%.
  • Equipped with 4 fans
  • Total electric power 30 kW



Our officies

The University Institute of Microgravity "Ignacio Da Riva" is part of the Universidad Politécnica de Madrid. We have one site at the Escuela Técnica Superior de Ingeniería Aeronáutica y del Espacio, within the Moncloa campus, and another at the Montegacedo campus.

Campus Moncloa / Montegacedo

📍 Plaza Cardenal Cisneros, 3 28040 Madrid, España

📍 Calle de los Ciruelos S/N, 28223 Pozuelo, España

📧 secretaria.idr@upm.es

📧 Iac.idr@upm.es

📞+34 9106 76072

📞+34 9106 76073