The fuselage of the LeO 8 was also built from duralumin, with four rectangularly braced longerons, assisted by internal wire bracing, forming a simple flat sided structure with forward aluminium panels at the front and fabric covering aft. The aluminium covered section included the nose mounted, , twelve-cylinder Renault 12F engine and the underwing region in front of the pilot's open cockpit. The nose was rounded in plan but not profile. The engine was liquid cooled by finned, cylindrical Lamblin radiators hung separately below it and had a tall, single, central exhaust above. Fabric covering began at front of the pilot's cockpit; the gunner's cockpit was immediately behind the pilot's and further aft the fuselage tapered to the tail, where a narrow chord, variable incidence tailplane was mounted on its top. All the rear surfaces were aluminium framed and fabric covered. The broad fin and rudder had vertical edges but an angled top; the rudder extended to the bottom of the fuselage, working through a small cut-out in the elevators. The fixed undercarriage of the LeO 8 consisted of a rectangular frame mounted from the lower fuselage longerons by a parallel pair of struts on each side. A pair of single wheels were attached to the frame, which was enclosed in a streamlined fairing of wing-like profile that added to the wing area. There was a sprung steel skid under the tail.
