Shannon (ship)

	The SpaceX Crew Dragon Endeavour, with NASA astronauts Robert Behnken and Douglas Hurley inside, is seen aboard SpaceX’s Shannon recovery ship shortly after splashing down in the Gulf of Mexico off the coast of Pensacola, Florida, on Aug. 2, 2020.
History
United States
Name	Shannon (2022-present); GO Navigator (2018–2022); GIS Grizzly (2014–2018); Harvey Grizzly (2013–2014); Callais Navigator (2009–2013);
Namesake	Shannon Walker
Owner	Falcon Landing, LLC (2022-present); Guice Offshore (2013–2022);
Operator	SpaceX (2018-present); Guice Offshore (2013–2018);
Port of registry	Port Canaveral, Florida
Builder	Master Boat Builders, Coden, Alabama
Launched	2009
Completed	2010
In service	2010
Identification	Call sign: WDK3552; IMO number: 9566887; MMSI number: 367550000;
Status	In service
General characteristics
Class and type	Platform supply vessel
Tonnage	498 GT; 659 DWT;
Length	49.85 m (163 ft 7 in)
Beam	11 m (36 ft)
Draught	3 m (9 ft 10 in)
Depth	3.7 m (12 ft)
Decks	1
Installed power	1,750 hp (1,300 kW)
Propulsion	2 × Caterpillar 3508B
Speed	22 kn (41 km/h; 25 mph)
Capacity	20
Crew	6
Notes

MV Shannon, formerly known as MV GO Navigator, is one of SpaceX's two Dragon capsule recovery vessels. Owned by SpaceX through Falcon Landing LLC (which also owns SpaceX's faring recovery vessels and Elon Musk's private jet), this vessel, along with its sister ship, MV Megan, is designed to retrieve Crew and Cargo Dragon capsules after splashdown.

When a Dragon capsule is preparing to return to Earth, Shannon or Megan are dispatched to wait near the predetermined landing zone. After splashdown, fast boats deployed from the vessel, approach the capsule to perform safety checks, check on the crew, and prepare it to be lifted aboard the recovery vessel, where the astronauts can exit the capsule. NASA requires SpaceX to allow the astronauts to exit within 60 minutes of splashdown.

To support its mission, the vessel is equipped with a specialized crane on the stern to pull the capsule up from the water, a medical unit to treat astronauts, and a helipad to allow astronauts and any time-sensitive cargo materials returned from space to be quickly returned to shore.

History

GO Navigator's services were procured by SpaceX as a quick transport vessel, as a back-up to GO Searcher in the event of any technical failures.^{[citation needed]}

In 2018 and 2019, the vessel and its crew were deployed for several hours of training to prepare for the recovery of the Dragon 2 capsules and their astronauts. The vessel executed the recovery operations during the Crew Dragon In-Flight Abort Test.^{[citation needed]}

Between April and May 2019, GO Navigator was temporarily re-assigned to fairing recovery operations for the ArabSat-6A, Starlink 0.9, STP-2, and Amos-17 missions.^{[citation needed]}

The vessel played a key role in the recovery operation of SpaceX's first crewed mission – Crew Dragon Demo-2.^[3]^[4]^[5]^[6] along with Megan.^[7] Both the vessels are identical and equipped with a medical treatment facility, helipad, lifting frame, etc.^[8]

GO stands for Guice Offshore, the owner and operator of these type of vessels.^[9]

In early 2022, the vessel was renamed Shannon after SpaceX Crew-1 astronaut Shannon Walker, along with GO Searcher being renamed Megan after SpaceX Crew-2 astronaut Megan McArthur. They are registered to Falcon Landing LLC, a SpaceX-linked company that also owns recovery ships Bob and Doug and Elon's private jet.^{[citation needed]}

List of recovery missions

Date	Mission	Role
11 April 2019	ArabSat-6A	Fairing recovery support
24 May 2019	Starlink	Fairing recovery support
25 June 2019	STP-2	Fairing recovery support
6 August 2019	Amos-17	Fairing recovery support
11 November 2019	Starlink-2	Fairing recovery support
2 August 2020	Demo-2	Crew Dragon recovery
14 January 2021	CRS-21	Cargo Dragon recovery
11 March 2021	Starlink 20	Fairing recovery support
14 March 2021	Starlink 21	Fairing recovery support
2 May 2021	Crew-1	Crew Dragon recovery
26 May 2021	Starlink 28	Fairing recovery support
6 June 2021	SXM-8	Fairing recovery support
10 July 2021	CRS-22	Cargo Dragon recovery
8 November 2021	Crew-2	Crew Dragon recovery
6 May 2022	Crew-3	Crew Dragon recovery
12 March 2023	Crew-5	Crew Dragon recovery
15 April 2023	CRS-27	Cargo Dragon recovery
30 June 2023	CRS-28	Cargo Dragon recovery
22 December 2023	CRS-29	Cargo Dragon recovery
9 February 2024	Axiom-3	Crew Dragon recovery
30 April 2024	CRS-30	Cargo Dragon recovery
15 September 2024	Polaris Dawn	Crew Dragon recovery

Mission Overview

Demo-2

For the Crew Dragon Demo-2 mission, the GO Navigator had a broken backup generator; however it still completed its mission and recovered the Endeavour capsule from the sea. The recovery was impeded by private boats which circled the capsule in the water.

GO Navigator Demo-2 recovery mission

GO Navigator in the dock showing capsule "nest" and retractable arch recovery device.
NASA Chief Astronaut Patrick G. Forrester, left, and NASA astronaut and Crew Recovery Chief Shane Kimbrough.
GO Navigator deploying a fast boat off the rear of the boat.
GO Navigator approaches the capsule.
Crew Dragon Endeavour being hoisted onto aft of GO Navigator vessel.
Robert Behnken, left, and Douglas Hurley are seen inside Endeavour onboard GO Navigator being greeted by SpaceX flight surgeon Anil Menon.

References

^ "Advanced Masterdata for the Vessel Go Navigator". VesselTracker. 2010. Retrieved 31 May 2020.
^ "SHANNON, Offshore Tug/Supply Ship - Details and current position - IMO 9566887 - VesselFinder". www.vesselfinder.com. Retrieved 2024-06-21.
^ "SpaceX Crew Dragon: everything you need to know about the Demo-2 space launch". BBC Science Focus Magazine. Retrieved 2020-05-31.
^ Sheetz, Michael (2020-05-26). "Everything you need to know about SpaceX's historic Demo-2 launch, its first with NASA astronauts". CNBC. Retrieved 2020-05-31.
^ "Launch America – a partnership between NASA and private space companies – will help open the space above Earth to people besides government astronauts". NASA. Retrieved 2020-05-31.
^ "GO Navigator". SpaceXFleet. Retrieved 2020-05-31.
^ "GO Searcher". SpaceXFleet. Retrieved 2020-05-31.
^ "Crew Dragon Recovery". SpaceXFleet. Retrieved 2020-05-31.
^ Ralph, Eric (2018-11-05). "NASA shows off SpaceX's upgraded Crew Dragon recovery vessel, tests helipad". TESLARATI. Retrieved 2020-05-31.

External links

[vesseltracker-1] "Advanced Masterdata for the Vessel Go Navigator". VesselTracker. 2010. Retrieved 31 May 2020.

[2] "SHANNON, Offshore Tug/Supply Ship - Details and current position - IMO 9566887 - VesselFinder". www.vesselfinder.com. Retrieved 2024-06-21.

[3] "SpaceX Crew Dragon: everything you need to know about the Demo-2 space launch". BBC Science Focus Magazine. Retrieved 2020-05-31.

[4] Sheetz, Michael (2020-05-26). "Everything you need to know about SpaceX's historic Demo-2 launch, its first with NASA astronauts". CNBC. Retrieved 2020-05-31.

[5] "Launch America – a partnership between NASA and private space companies – will help open the space above Earth to people besides government astronauts". NASA. Retrieved 2020-05-31.

[6] "GO Navigator". SpaceXFleet. Retrieved 2020-05-31.

[7] "GO Searcher". SpaceXFleet. Retrieved 2020-05-31.

[8] "Crew Dragon Recovery". SpaceXFleet. Retrieved 2020-05-31.

[9] Ralph, Eric (2018-11-05). "NASA shows off SpaceX's upgraded Crew Dragon recovery vessel, tests helipad". TESLARATI. Retrieved 2020-05-31.

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