TURBOJET 385 The Turbojet 385 comfortably seats five adults and one child with space for storage. It's perfect for days out, exploring hidden coves or pulling up on a secluded beach for a private picnic. Head off down the coast, drop anchor and lower the bathing ladder for a gentle swim in glistening turquoise waters. Then blast back to your yacht with a top end of 48 mph (77 kph) with the standard engine or 53mph (85kph) if you opt for the ‘S’ version engine.