In 2005 Andre Hoek analysed the potential of the seven remaining hulls designed by Burgess and Stephens for the Vanderbilt syndicate. It is hull 77-F that has now been built as Lionheart, 75 years after she was conceived on the drawing boards. The hull was eventually built by Freddie Bloemsma and Claassen Jachtbouw was responsible for building the yacht. She was launched 5 years after the project started, in the summer of 2010. Lionheart arrived at the racing scene in 2012.

Back in 1937 the original "Endeavour II" was built in steel at the Nicholson's Yard and designed by Charles Nicholson. She was scrapped in 1968.Dykstra Naval Architects oversaw the re-build of Endeavour II's hull in Alustar, with spars and rig in carbon composite to create a yacht that should demonstrate the full potential of the original design. Hanuman joined the J-Class racing circuit in 2009.