Alfa Romeo II (rechristened Black Jack IV) is a maxi yacht designed in 2005 by Reichel/Pugh for yachtsman Neville Crichton.

[4] She features a 44 m (144 ft)[5] carbon fibre mast built by Southern Spars, water ballast, and a canting keel.

[7] Total crew of about seventeen sailors included Stanley Honey, navigator; Olympian Ben Ainslie, English Gold Medalist Finn sailor of the 2008 Summer Olympics; and members of the Ericcson 4 crew, recently victorious in the Volvo Ocean Race.

According to the 7 July 2009 morning report, Alfa Romeo II broke the Transpac race record for most miles covered in one day, set in the 2005 race by Morning Glory, by sailing 399 nautical miles (459 mi; 739 km) in 24 hours.

[10] She was first to finish the 2009 Transpac race, in which she set a new elapsed-time record[2][3] of 5 days, 14 hours, 36 minutes, 20 seconds.