Fiat B.R.

From Wikipedia, the free encyclopedia
  (Redirected from Fiat BR.4)
Jump to: navigation, search
BR
Fiat BR.jpg
Fiat BR
Role Bomber
Manufacturer Fiat
Designer Celestino Rosatelli
First flight 1919
Number built >250
Fiat BR.1
Fiat BR.2
Fiat R.22
Fiat BR.3
Fiat BR.3

The Fiat B.R. 1/4 was a light bomber series, developed in Italy shortly after World War I.

Design and development[edit]

The B.R was a development of the SIA 9 reconnaissance aircraft, incorporating major strengthening of that design. Its general layout was identical to its predecessor: a two-bay biplane with tandem, open cockpits for pilot and observer, and tailskid undercarriage. Shortly after entering service with the Regia Aeronautica, however, Rosatelli developed an improved version using the Warren truss-style bracing that would become a hallmark of his designs over the next decade.

The B.R. was evolved into a number of increasingly capable variants; however, by the time the later members of the family were produced, 15 years had passed since the initial design, and the type was already obsolete. At its peak, the BR equipped 15 light bomber squadrons of the Regia Aeronautica. Two examples were also exported to Sweden, and one to Hungary.

In 1922, a specially modified BR designated the R.700 was used to set the absolute world airspeed record at 336 km/h (210 mph). The same aircraft was used to contest the Coupe Deutsch de la Meurthe in September that year.

Variants[edit]

  • B.R. - initial production version with Fiat A.14 engine and conventional struts
  • B.R.1 - improved version with new radiator and landing gear, and Warren truss struts (150 built)
  • B.R.2 - strengthened structure, new landing gear, and Fiat A.25 engine
    • R.22 - reconnaissance aircraft of which two prototypes and 23 production versions were built. Although resembling the BR.2 it was of smaller dimensions and the wing and fuselage structures were all-metal. All examples flown by Regia Aeronautica with Fiat A.22 engine
  • B.R.3 - new landing gear, fitted with radio and panoramic camera and (in later versions) Handley Page-type slats (100 built)
  • B.R.4 - substantial redesign with revised aerodynamics, new landing gear, and new radiator arrangement (one built)
  • R.700 - racer for world airspeed record attempt

Operators[edit]

 Kingdom of Hungary
 Kingdom of Italy
 Sweden
 China

Specifications (B.R.2)[edit]

General characteristics

  • Crew: two, pilot and observer
  • Length: 10.66 m (35 ft 0 in)
  • Wingspan: 17.30 m (56 ft 9 in)
  • Height: 3.91 m (12 ft 10 in)
  • Wing area: 70.2 m2 (756 ft2)
  • Empty weight: 2,646 kg (5,833 lb)
  • Gross weight: 4,195 kg (9,248 lb)
  • Powerplant: 1 × Fiat A.25, 813 kW (1,090 hp)

Performance

  • Maximum speed: 240 km/h (140 mph)
  • Range: 1,000 km (621 miles)
  • Service ceiling: 6,250 m (20,500 ft)
  • Rate of climb: 4.2 m/s (830 ft/min)

Armament

  • 1 × fixed, forward-firing 7.7 mm (.303 in) Vickers machine gun
  • 1 × trainable, rearward-firing 7.7 mm (.303 in) Lewis Gun
  • 720 kg (1,590 lb) of bombs

See also[edit]

Related lists

References[edit]

  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 383. 
  • Illustrated Encyclopedia of Aviation. London: Aerospace Publishing. p. 1800. 
  • World Aircraft Information Files. London: Bright Star Publishing. pp. File 894 Sheet 18.