pilot's upward view. Its fuselage was a steel tube lattice structure, largely fabric covered. Four longerons formed an almost rectangular quadrilateral, with the upper side slightly wider than the underside. Its Argus As 8B four cylinder inverted inline engine was mounted on steel bearers attached to the forward end of the fuselage frame. It produced and drove a two blade propeller. Its fuel tank was in the fuselage aft of the engine firewall. The wing was held a little above the fuselage by a short, outward leaning lift strut on each side from the upper longerons to the wing spar and by further struts from the spar at the centre of the wing. The open cockpit placed the pilot on the line of the outer trailing edge, looking forward between wing and fuselage. Both upper and lower fuselage cross sections were rounded and the sides appeared faceted, shaped by stringers. The tapered tailplane and vertical tail had straight edges and rounded tips, with the tailplane mounted at mid-fuselage height. Both fin and rudder were broad at the base, the latter extending to the keel and moving in a small elevator cut-out. The Ru.3 had a fixed, conventional undercarriage. The spatted mainwheels were mounted on long shock absorbing legs which leant inward to the upper longerons at the same points as the wing struts. Each axle was attached to a pair of V-struts, hinged on the fuselage underside and faired in. There was also a small tailskid. The Ru.3 was unarmed but instead was fitted with a camera for recording success or otherwise in combat simulations with another aircraft. Specifications References 1930s German military trainer aircraft