Crossbow II (proa)

Crossbow II was a late 1970s proa (or asymmetrical catamaran) sailboat, the successor craft to Crossbow.

It was built by "former Olympian Tim Whelpton" at his boatyard in Upton near Acle.

It revised the world sailing speed record of its predecessor until 1980, finally reaching 36 knots (41 mph), a record it held until 1986.