Moonbeam IV
- Length on Deck: 29m / 95.1ft
- Beam: 5.45m / 17.9ft
- Built: 1920
- Designer: William Fife III
- Builder: William Fife & Son, Fairlie, Scotland
- Based: Brest, France
Commissioned in 1913, war prevented Moonbeam IV from being delivered, and she was laid up until 1920. With the return of peace, she was surveyed by Lloyds Register and found to be in such good condition that it was agreed that she be registered with 1920 as her year of build.
In her first year, Moonbeam IV raced against the legendary royal yacht Britannia and, whilst always intended as a cruiser/racer, won some notable victories, including winning the King’s Cup in both 1920 and 1923. Her rig was upgraded in 1927 to make her even faster, and it is that rig that she sports following her complete restoration.