BRT

   We do not know the names of the builders whose initials mark this odd biplane built and tested at Betheny before 1909. The uncovered rectangular-section fuselage carried a tractor engine and propeller at the front with the pilot seated aft of the lower wing trailing edge. The lower wing was mounted forward under the nose, and the upper wing very close above and behind it. A large cruciform tail unit was mounted on outriggers to the rear, supported on a pair of large semicircular hoops. Ailerons were fitted to the upper wing. The 2-wheeled undercarriage was high and fitted with 2 high skids curved forward.