![](../I/Tacite_french_sounding_rocket.jpg.webp)
![](../I/Tacite_sounding_rocket_scheme.jpg.webp)
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The inaugural member of ONERA sounding rockets fleet, the Tacite (Tentative d'Analyse du Contraste Infrarouge Terre-Espace, for Attempt to Analyze the Earth-Space Infrared Contrast), was a single-stage vehicle, used between 1965 and 1968.[1][2][3][4]
Description
Designed and developed by the Office national d'études et de recherches aérospatiales (ONERA), it was a single-stage vehicle equipped with a SEPR 739-2' Stromboli engine fueled by Plastoline' propellant, offering a propulsion duration of 20 seconds.[1][3][4] The rocket incorporates small nitrogen ejection nozzles to induce rotation and employs aerodynamic stabilization by a cruciform tailfin.[1][3][2]
With a total mass of 1738 kg (excluding the useful tip), Tacite reached a height of nearly 8 meters. It had the capability to propel a 285 kg payload to an altitude of 160 km.[1][3]
Launches
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Operational between 1965 and 1968, this rocket underwent four launches, experiencing one failure.[1][3][2]
Date | Launch Site | Mission Description | Agency | Apogee (km) |
---|---|---|---|---|
1965 June 15 | Biscarosse | Infrared Horizon Study Aeronomy | ONERA | 182 |
1967 Nov 23 | Ile du Levant | FU-169 X-ray astronomy | CNES | Failure |
1968 May 15 | Ile du Levant | Earth Infrared Aeronomy | CNES | 175 |
1968 Oct 15 | Ile du Levant | Sun pointing test / Solar observations | CNES | 140 |
See also
References
- 1 2 3 4 5 "Fusées de l'ONERA". 2013-01-15. Archived from the original on 2013-01-15. Retrieved 2023-11-14.
- 1 2 3 "La fusée Tacite". eurospace.free.fr. Retrieved 2023-11-14.
- 1 2 3 4 5 "Tacite". www.astronautix.com. Retrieved 2023-11-14.
- 1 2 "SEPR-739". Gunter's Space Page. Retrieved 2023-11-14.