“…Let {T, P, U, N} be a Darboux frame field of first kind along r(u) and κ n , κ 1 g , κ 2 g , τ 1 g , τ 2 g are real valued functions in arc length parameter u of r. So, we have the following definition. In the following we continue our studies of special Smarandache curves that we started in [2,5,6]. Here we investigate some special Smarandache curves of first kind called TP, TU, PU and PN ( the other special Smarandache curves can be computed in the same manner) and then obtain some of their differential geometric properties which represent the main results.…”