Caproni Ca.67

The Caproni Ca.66 and Caproni Ca.67 were Italian night bomber aircraft designed to re-equip the post-World War I Regia Aeronautica.

Caproni Ca.67
Role Night bomber aircraft
National origin Italy
Manufacturer Caproni
First flight 1923
Number built 2
Variants Caproni Ca.66

Design and development

The Ca.66 was a well built wooden aircraft with ply venner and fabric covering, intended to carry out night bombing. The single-bay inverted sesquiplane wings were braced with streamlined struts and wires and were characterised by their squared off wing-tips, constant chord, and moderate 3° 30' dihedral on the lower mainplanes. The square section fuselage, rounded off at the nose, housed the four crew in three open cockpits with pilot and co-pilot side by side. At the aft end of the fuselage a large triangular fin, with rudder, supported the biplane tailplanes, which were also strut-braced. The tail-skid undercarriage had mainwheels on divided axles, strut-supported beneath the engines and attached to the lower longerons of the fuselage. Controls were conventional with elevators on upper and lower tailplanes, large horn-balanced rudder and horn balanced ailerons on the lower wings only.[1]

The Ca.67 was similar to the Caproni Ca.66 in overall design and span but differed in having 2 Lorraine-Dietrich 12Db engines and increased payload. Flight tests offered no real improvement in performance over the Ca.66, and the Regia Aeronautica did not order the aircraft into production.[1]

Variants

Ca.66
inverted sesquiplane bomber powered by four 200–220 hp (150–160 kW) SPA 6A engines in strut-supported tandem pair nacelles between the mainplanes; one built.
Ca.67
A Ca.66 powered by two 400 hp (300 kW) Lorraine-Dietrich 12Db (Isotta Fraschini 12Db?) engines in tractor nacelles mounted on the lower mainplanes; one built.

Specifications (Ca.67)

Data from [2], Aeroplani Caproni dal 1908 al 1935[1]

General characteristics

  • Crew: Four, pilot, co-pilot plus two gunners
  • Capacity: 2,400 kg (5,300 lb) payload
  • Length: 12.50 m (41 ft 0 in)
  • Upper wingspan: 17 m (55 ft 9 in)
  • Lower wingspan: 25 m (82 ft 0 in)
  • Height: 5.60 m (18 ft 4 in)
  • Wing area: 143 m2 (1,540 sq ft) excluding ailerons
  • Empty weight: 3,300 kg (7,275 lb)
  • Gross weight: 5,700 kg (12,566 lb)
  • Powerplant: 2 × Lorraine-Dietrich 12Db , 300 kW (400 hp) each
  • Propellers: 2-bladed fixed-pitch propellers

Performance

  • Maximum speed: 180 km/h (110 mph, 97 kn) at ground level
  • Cruise speed: 155 km/h (96 mph, 84 kn)
  • Stall speed: 80 km/h (50 mph, 43 kn)
  • Endurance: 4 hr with 1,000 kg (2,200 lb) bomb-load
  • Service ceiling: 5,500 m (18,000 ft)
  • Time to altitude: 1,000 m (3,300 ft) in 5 minutes ; 1,000 m (3,300 ft) in 48 minutes

Armament

  • Guns: 4 × 7.7 mm (0.303 in) machine guns in front and rear gunners cockpits on flexible mounts
  • Bombs: 12 × 100 kg (220 lb) Lancia bombs

References

  1. Caproni, Gianni (1937). Aeroplani Caproni dal 1908 al 1935 (in Italian). Milan: Edizioni d'arte Emilio Bestetti. pp. 168–174.
  2. "Caproni Ca.67". Airwar.ru. Retrieved 2019-02-03.
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