Radio-telescopes

Multiplast was selected by Thales Alenia Space for the production of 25 composite 'Cabin Receivers' composites for the scientific programme, 'Alma'.

During the 3 years of the project, Multiplast processed 4.5 tonnes of pitch carbon fibre every 6 weeks. The choice of this particular carbon fibre (very high modulus but weak resistance under compression) was dictated by the near zero expansion coefficient of this material which as a result assured an exceptional dimensional stability for the antenna. (CTE 10 times less than invar)
In order to guarantee these performances, tolerances in the order of 2/100th of a millimetre for the coaxiality of the elevation axis; or 5/100th of a millimetre for the magnetic steering rack, were required.