Riviera 4000 Offshore Yacht Search Stock & Used Yachts The 4000 Offshore is a sportsboat from Riviera. This planing yacht is constructed from fibreglass and can deliver speeds in excess of 30 knots. Read More Specs Length 40' Materials Fibreglass Hull & Superstructure Show Full Specs Hide Full Specs Full Specification Principal Characteristics Length overall 40' Beam 14' 4" Draft (full load) 3' 11" Fuel capacity 394 Gallons Fresh Water capacity 119 Gallons Black water capacity 40 Gallons Max speed 30 Knots Cruising speed 25 knots Hull GRP Superstructure Fibreglass Show Full Specs Hide Full Specs