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Disgrifiad

Balŵn wedi ei llenwi gyda hydrogen a'i hangori ger Gwaith Nwy Doc Penfro, 1906. Yr enw roddwyd ar y cynllun hwn oedd balŵn hydrogen Charlière. Gyda'i gondola o wiail, net a system falf a balast, dyma fu cynllun y balŵn hydrogen am 200 mlynedd.

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