Elon Musk’s commercial space launch company, SpaceX, may have deployed the largest fully unmanned commercial vessel in operation, reports Satnews.
A Shortfall of Gravitas
The 10,000 dwt, 300-foot deck barge Marmac 302 was recently converted at Bollinger’s Port Fourchon yard and renamed A Shortfall of Gravitas. She has been outfitted with a wider deck and a set of four thruster pods, enabling her to hold station and catch SpaceX’s booster rockets on their return to earth.
SpaceX owns two similar vessels built from the hulls of Marmac 302’s sister barges, the Marmac 303 and 304, and both are DP-capable without crew on board. However, SpaceX says that A Shortfall of Gravitas (dubbed ASOG by SpaceX fans) can drive itself to and from the port, without crew and without a tow.
Autonomous SpaceX droneship,
A Shortfall of Gravitas pic.twitter.com/hNZ5U7nxUg— Elon Musk (@elonmusk) July 9, 2021
Fully automated vessel
In a follow-up tweet, Musk confirmed that ASOG is fully automated and requires no tugboat for transits. (It is, however, getting a tow from the Gulf of Mexico to its homeport in Port Canaveral.)
The largest existing autonomous cargo vessel, the Yara Birkeland, is still operating in a fully-crewed test phase. She is somewhat smaller than ASOG at 3,000 dwt and 260 feet in length.
SpaceX conducted its first successful rocket landing at sea in 2016, setting a new technological milestone that has allowed the company to greatly reduce its operating cost per launch.
SpaceX’s Falcon 9 boosters are designed for refurbishment and reuse, a departure from the disposable-booster business model used by its competitors. Musk has compared the traditional approach to “disposable airplanes” and claims that SpaceX saves money after the third flight on each booster.
A Shortfall of Gravitas and Finn Falgout captured by Sentinel-2 @ 2021-07-12 16:15:27 UTC. https://t.co/LD0YciajZz pic.twitter.com/qxigF2Iq5W
— Harry Stranger (@Harry__Stranger) July 12, 2021
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Source: Satnews