{"version":"1.0","type":"link","title":"S-IVB - Newikis","description":"The S-IVB (pronounced \"S-four-B\") was the third stage on the Saturn V and second stage on the Saturn IB launch vehicles. Built by the Douglas Aircraft Company, it had one J-2 rocket engine. For lunar missions it was fired twice: first for Earth orbit insertion after second stage cutoff, and then…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/5/54/Saturn_IB_S-IVB-206.jpg/1280px-Saturn_IB_S-IVB-206.jpg","thumbnail_width":1280,"thumbnail_height":1683}