- Name: ROYONO
- Previous Names: MAN-DOO II
- Yacht Type: Sail Yacht
- Builder: Herreshoff
- Naval Architect: John G. Alden Design
- Exterior Designer: Nathanael G. Herreshoff
- Refits: 1938-01-01,2003-01-01,1989-01-01,1977-01-01
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