O.Thetford, P.Gray German Aircraft of the First World War (Putnam)

L.F.G. Roland D V
  Following the original triplane D IV, the L.F.G. D V was a development of the D III and in fact utilised the complete wing cellule of that type. The same type of ply-skinned, semi-monocoque fuselage was used although considerably lined down to slimmer proportions. Only the single prototype was built. Engine, 160 h.p. Mercedes D III.

W.Green, G.Swanborough The Complete Book of Fighters

LFG ROLAND D V Germany

  During the autumn of 1917, three prototypes of the D V were built in an attempt to eradicate the shortcomings revealed by the D III. Retaining the moulded two-piece shell-type fuselage construction of the earlier fighter, and being, in fact, the last LFG type to utilise this so-called Wickelrumpf, the D V employed the complete wing cellule of the D III. The fuselage cross section was reduced and the decking lowered to improve vision from the cockpit. Armament remained two 7,9-mm LMG 08/15 machine guns, and while one prototype retained the 180 hp Argus As III engine of the earlier D II and D III, the other two were powered by the 160 hp Mercedes D III. Testing revealed little advance over the D III and development was discontinued in favour of the D VI. No data relating to the D V are available.