Breda-Zappata BZ.309

B.Z.309
General information
TypeTwin-engined airliner
National originItaly
ManufacturerBreda
Designer
Number builtNone

The Breda-Zappata B.Z.309 was an Italian twin-engined airliner project by Breda.

Design and development

Aircraft designer Filippo Zappata developed a short range twin-engined civil transport for 11 to 15 passengers and a crew of two. The BZ.309 was a twin-engined all metal high wing transport aircraft that was designed for short-range airline routes within Italy.[1] The aircraft was envisioned to be powered by two inline engines of an unspecified make producing between 900 and 1000 horsepower each, with a top speed of 217 mph.[2][1] The empty weight was designed to be 8,050 lb, and maximum gross takeoff weight was 12,125 lb.[1] It had tricycle landing gear, and single fin and rudder.[2] The completion of the design phase was announced by the company in July 1947.[1] The Breda company had financial problems which led to the project being abandoned.

Specifications (estimated)

Data from Jane's all the World's Aircraft 1947[2]

General characteristics

  • Crew: 2
  • Capacity: 11-15
  • Length: 14.75 m (48 ft 5 in)
  • Wingspan: 20 m (65 ft 7 in)
  • Wing area: 36.7 m2 (395 sq ft)
  • Empty weight: 3,650 kg (8,047 lb)
  • Gross weight: 5,450 kg (12,015 lb)
  • Max takeoff weight: 6,450 kg (14,220 lb)
  • Powerplant: 2 × unspecified , 750 kW (1,000 hp) each

Performance

  • Maximum speed: 400 km/h (250 mph, 220 kn)
  • Cruise speed: 330 km/h (210 mph, 180 kn) at 2,500–3,000 m (8,200–9,800 ft)
  • Service ceiling: 7,000 m (23,000 ft) +
  • Wing loading: 161 kg/m2 (33 lb/sq ft) at 5,950 kg (13,120 lb)

References

  1. ^ a b c d "Italians Start Work on Two New Transports". Aviation Week. 47 (1): 44. 7 July 1947 – via Archive.org.
  2. ^ a b c Bridgman, Leonard, ed. (1947). Jane's all the World's Aircraft 1947. London: Sampson Low, Marston & Co. p. 144c.