Carat (mass) Despite its being a non-metric unit, a number of metric countries have used this unit for its limited range of application. The Board of Trade carat was divisible into four "diamond grains", but measurements were typically made in multiples of carat. There were also two varieties of "refiners' carats" once used in the United Kingdom — the pound carat and the ounce carat. The pound troy was divisible into 24 "pound carats" of 240 grains troy each; the pound carat was divisible into four "pound grains" of 60 grains troy each; and the pound grain was divisible into four "pound
AMS-Flight Carat are mounted on the upper surfaces of the inner panels, with turbulators on the underside to ensure a controlled boundary layer transition from laminar to turbulent flow without separation. The wings have 3° of dihedral. Though the Discus and the Carat share wings, they position them differently: the Discus is a mid-wing aircraft, the Carat a low-wing one. Like the Discus, the Carat has a high T-tail with separate tailplane and elevators. The tailplane, like the wings, is detachable for easy transport. The cockpit, enclosed in a large clear single piece canopy, is at the trailing edge of the wing,