This fuselage connects directly to Cedrus Evolution Masts, no adapter needed. It accepts all Armstrong foils and tails using the A+ connection, offering a super clean, stiff, strong connection. Like all carbon/aluminum joints, it's best to dis-assemble after use and rinse to prevent galvanic corrosion. This is true for Armstrong's S1 fuselage as well. If you already have an Armstrong S1 fuselage, we offer an adapter to that over here. But if you have an A+ carbon fuselage, we are unable to adapt to that, and offer this fuselage instead.