Zmaj R-1

The Zmaj R-1 was a twin-engine prototype bomber produced by Zmaj aircraft of the former Yugoslavia, designed in the 1930s.

The aircraft remained a prototype due to a number of difficulties in testing.

Specifications

Crew

3 – 4

Length

12.78 m (41 ft 11 in)

Wingspan

14.40 m (47 ft 3 in)

Height

2.50 m (8 ft 2 in)

Wing area

33.80 m2 (363.8 sq ft)

Empty weight

2,600 kg (5,732 lb)

Gross weight

5,094 kg (11,230 lb)

Max take-off weight

5,664 kg (12,487 lb)

Powerplant

2 × Hispano-Suiza 14AB 14-cyl air-cooled radial piston engine, 552 kW (740 hp) each

Propellers

3-bladed

Performance

Maximum speed

450 km/h (280 mph, 240 kn)

Cruise speed

320 km/h (200 mph, 170 kn)

Range

1,000 km (620 mi, 540 nmi)

Service ceiling

10,000 m (33,000 ft)

Rate of climb

5.55 m/s (1,093 ft/min)

Armament

Guns

2x 20 mm (0.787 in) Oerlikon cannon, and 4x 7.9 mm (0.311 in) machine guns

Bombs

1,600 kg (3,500 lb) of bombs carried internally.