sentences:  Ferber then built his fifth aircraft, based on photographs of the Wright's 1901 glider.This resembled the Wright glider in being a two-bay biplane with a forward elevator, but the resemblance ends there.As with Ferber's previous aircraft, the construction was crude in the extreme, the wings consisting merely of a simple framework of bamboo loosely covered with fabric, entirely lacking the ribs which formed the wings of the Wright's glider into a lift-giving aerofoil section.