Stratospheric Balloons

Exploration & Science

HAPS

Equipment for CNES stratospheric balloons (more than 20 successful flights)

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Stratospheric Balloons

explorations-and-sciences

- HAPS

Image Stratospheric Balloons
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CNES’s balloons activity consists in designing and operating aerostatic vehicles to carry scientific instruments.

As part of the modernization of the flight chain, COMAT was asked to study, design, manufacture and then qualify equipment composing the flight chain of OSB balloons:

  • NSO Lay Bin (gondola)
    • Ballast tray structure
    • Ballast shedding valve
    • Force sensor (real-time measurement of the light bin mass)
  • Valve (load shedding valve)
  • Fittings (interface accessories of the various components of the flight chain)

Key
Features

T° Range

-110/+50°C

Flush Section

590 (or 1,190) cm²

Actuation Time

< 12 s

Pressure

1 → 1050 hPa

Safety

Fail-safe

Gas He or H

OK

Mass

9.8 (or 12) kg

Leak Rate

Conform to CNES spec

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