Issue 16

Fun Fact: Sea Dragon

Fun Fact: Aerojet’s 1963 Sea Dragon concept was a massive reusable sea-launched rocket designed to lift about 1.1 million pounds to low Earth orbit.

Fun Fact: In 1963 Aerojet provided initial designs for the Sea Dragon sea-launched rocket, the largest rocket ever proposed. Sea Dragon would be a two-stage rocket with only one engine in each stage and stood a staggering 400 feet with a diameter of 75 feet at its widest point. It was heavy, weighing in at about 40 million pounds. Sea Dragon could lift 1.1 million pounds to LEO.

It was also designed to be almost entirely reused in an effort to keep launch costs down. There were even plans to support refueling…the basic payload was imagined as an aluminum tank containing more than a million pounds of LH2 for orbital refueling. Alas, Sea Dragon never flew. It was ultimately a concept study that didn’t have a place the 1960s landscape. NASA was dominating the space game with support from the military and its focus was firmly on getting to the Moon, not a rocket that could make spaceflight routine without immediate lunar applications.

However, this did not stop people from creating an amazingly cool video of a Sea Dragon launch.