Ballista made by a BBC team for «Building the Impossible: The Roman Catapult» (educational programm). Ballista weight was 8.5 t and it can throw the stones of 1 talent (26 kg).
Source
Ballista proportions are drawn from a photo in BBC technical note
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Captions
One talent ballista (26 kg [57 lb] weight projectile)
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{{Information |Description=Ballista made by a BBC team for «Building the Impossible: The Roman Catapult» (educational programm). Ballista weight was 8.5 t and it can throw the stones of 1 talent (26 kg). |Source=Ballista proportions are drawn from a pho