the caudron c.570 was primarily designed to fill a gap in the types of aircraft available to french armed forces, that of a troop-carrier, though it could take on other roles. it was a low wing cantilever monoplane with wings in three parts, a span rectangular centre section and outer trapezoidal panels, ending in rounded tips. the wings were built around twin box spars made of spruce and plywood. the central section had an aluminium frame and light metal skin; the outer panels were ply-covered. multi-section ailerons filled more than half the span of the outer panels' trailing edges.