The Intermediate eXperimental Vehicle is ready to fly and has left the Netherlands for the launch site in French Guiana.

In preparation for its arrival, the first stage of the Vega rocket that will loft IXV has already been moved to the launch pad. This marks the beginning of the campaign for Vega's fourth flight, planned for mid-November.

Once Vega is fully assembled, IXV will be placed inside the protective fairing.

The spaceplane will reach an altitude of around 420 km before starting its descent. Using its sleek aerodynamic shape, thrusters and two tail flaps, it will return through the atmosphere as if from a low orbit.

The measurements collected by IXV during its hypersonic and supersonic flight to a splashdown in the Pacific Ocean will be invaluable for designing future reentry vehicles. This information is not attainable in the laboratory.

Extensive testing over July and August at ESA's Technical Centre in Noordwijk shows that IXV can withstand the demanding conditions during ascent.

The craft was exposed to the noise and vibrations it will experience at liftoff and the shock of separation from Vega. Then, it had a thorough health check to make sure that the systems and structures were unaffected by the tests.

A series of mission simulations verified that the guidance, navigation and control system and all the functions managed by the onboard computer are working well. One simulation included the Mission Control Centre in Turin monitoring the telemetry.