Reportedly the same aircraft was subsequently fitted with the more powerful 105 hp Toma 4 engine, while the fuselage was lengthened to 26 ft 2.2 in (7.98 m). Redesignated Av-236 the modified aircraft had a generally better performance, including a maximum speed of 136 mph (219 kmh) and ceiling was 13,123 ft (4,000 m). The Av-236 was reportedly first flown in 1947 and retained the OK-AHZ registration, however, nofurther development took place."
The following data relate to the Av-36.
TYPE. Two-seat Cabin Monoplane.
WINGS. Cantilever high-wing monoplane. Wooden two-spar structure with plywood covering. Wooden ailerons with fabric covering, and all-wood trailing-edge flaps between ailerons and fuselage.
FUSELAGE. Welded steel-tube structure with fabric covering.
TAIL UNIT. Cantilever monoplane type. Wooden structure with ply-covered fin and tailplane, and fabric covering over rudder and elevators.
LANDING GEAR. Fixed two-wheel type. Each main wheel carried on single cantilever shock-absorber leg and faired by metal spat. Mechanically. operated brakes. Steerable tail-wheel.
POWERPLANT. A Walter Mikron 4-III four-cylinder air-cooled inverted in-line engine rated at 65 hp at 2,600 rpm at sea level, and driving Avia two-blade fixed-pitch wooden airscrew. Fuel capacity 11.9 gal (45 l); oil capacity 1.9 gal (7.3 l).
ACCOMMODATION. Enclosed cabin seating two side-by-side with dual controls. Access door on each side.
Span: 34 ft 9 in (10.59 m)
Length: 23 ft 3 in (7.09 m)
Height: 6 ft 5 in (1.96 m)
Wing area: 161.4 sq.ft (15 sq.m)
Empty weight: 1,003 lb (455 kg)
Loaded weight: 1,444 lb (655 kg)
Wing loading: 8.94 lb/sq.ft (43.64 kg/sq.m)
Power loading 22.2 lb/hp (10.18 kg/hp)
Max speed: 112 mph (180 kmh) at sea level
Cruise speed: 99 mph (99 kmh)
Landing speed: 42 mph (68 kmh)
Climb: 492 ft (150 m)/min
Service ceiling: 11,480 ft (3,500 m)
Cruise range: 320 mls (515 km)."