'Long Island' 78 Power Cat Signed By JFA A new project has been signed by French builder JFA. It is from their 'Long Island' series... which essentially are sailing catamarans. This one is a power cat and is just under 80-feet long. As a catamaran the twin hulls will give the sub-100-foot yacht plenty of room from the main deck up. The beam is around 36-feet (11.17-meters). Marc Lombard is onboard once again on the exterior design. On the interior, Franck Darnet penned the light and airy interior that focuses on light and contrasting dark timbers.