The second pusher biplane design built by the Herzog brothers of Harvard, Nebraska, USA, in 1909. It had a span of 48 ft, with a characteristic wavy W-shaped top wing and small horizontal stabilizing surfaces at the tips of the lower wings. The apparently tail-less plane had biplane elevators and rudders at the front, a three-wheel undercarriage and an aircooled engine of 21 hp of unknown make.
All Aero 