Tiara 3800 Open Yacht Search Stock & Used Yachts The 3800 Open is a fisher from American builder Tiara Yachts. The 3800 Open is a yacht built from GRP, the planing hull design will reach a top speed of 30 knots. Read More Specs Length 40' 9" Materials GRP Hull & Superstructure Show Full Specs Hide Full Specs Full Specification Principal Characteristics Length overall 40' 9" Beam 14' 2" Draft (full load) 3' 6" Fuel capacity 411 Gallons Fresh Water capacity 110 Gallons Black water capacity 40 Gallons Max speed 30 Knots Cruising speed 26 knots Hull GRP Superstructure GRP Engines & Performance Standard Option Cummins QSB6.7 480mhp QTY x 2 Performance 473 HP (353 Kw) each @ 3300 rpm Maximum Speed 30 knots Engine Details Show Full Specs Hide Full Specs