Tacite

The Onera Tacite was a French rocket of the 1960's, first successfully launched in 1965, designed to carry out measurements of infra-red emission around the horizon, as seen from outer space. Tacite was a single-stage solid-propellant rocket, 680 cm long and had a diameter of 56 cm.
Found on http://www.probertencyclopaedia.com/browse/IT.HTM
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