Aviation of Word War II

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Breguet Br.730

Reconnaissance Flying Boat

Breguet

Breguet Br.730

Breguet Br. 730 is a flying boat with a gull wing. In October 1936, construction of an experimental aircraft began. The wing with a box spar held 18,450 liters of fuel and a tunnel in the leading edge through which the flight mechanic could get close to any engine in flight. On each wing was one Gnome-Ron 14N2 and one 14N3, with counter-rotating propellers. The power of each engine was the same - 1010 hp. from. at an altitude of 1500 m. The armament was to consist of one 25-mm cannon on the turret above the cockpit and five 7.5-mm Darn machine guns. Two machine guns fired from the hatches under the cockpit, two more - from the hatches behind the wing and one - down through the hatch behind the rear step.

Prototype Br.730-01 took off for the first time at Le Havre on April 4, 1938. A little more than three months later, the flying boat collapsed when the pilot casually landed it in a large wave.

At the plant of the company "Latecoer", at that time associated with "Breguet", just started the manufacture of the fuselage of the first production vehicle. The boat differed from the prototype only in small details. By the time of the surrender on June 25, 1940, when production stopped, four fuselages were almost complete.

In 41, work resumed again, already by order of the Vichy government. The following year, the boat of the first production vehicle and the surviving wing of the prototype were transported to the Burr naval airbase, where the Br.730 No. 1. Equipped with four Gnome-Ron 14 N44 / 45 1120 hp engines. c, the flying boat was ready to fly when German forces occupied territory previously under the Vichy government. The tests did not take place.



Br.730 Specification
Crew 6
Dimensions
Wingspan, m 40.35
Length, m 24.35
Height, m 8.60
Powerplant
4 × PE Gnome-Rhone 14N-44 power, h.p. 4 × 1,120
Weight, kg:
Empty 16,100
Loaded weight 28,500
Performance
Maximum speed, km/h 330
Cruising speed, km/h 287
Service ceiling, m 5,800
Service range, km 6,900

Eleven boats were at various stages of assembly when, on April 6, 1944, an Allied air raid caused great damage to the enterprise. Only three survived. In the last days of August, retreating German forces destroyed the air base in Berr, but the Br.730 No.1 received only minor damage. In December, its flight tests began on Lake Berr.

Official acceptance tests were completed in mid-February 1945 Br.730 No. 1, christened Vega, was transferred to the 9FTr flotilla. One of the three surviving fuselages was transported to Biscarossa for rework in Br.730 No.2. This aircraft made its maiden flight in May 1946. On the two remaining boats, the bow section, underwing floats were altered and Gnome-Ron 14R200 / 201 engines of 1350 hp were installed. from. This modification was designated Br.731. Both vehicles of this type entered Squadron 33S under the names Altair and Bellatrix. Subsequently, they were scrapped, as well as the Br.730 No.2 Sirius, but the Vega crashed in December 1948 in North Africa, where it was used as a long-range transport aircraft.

Photo Description
Drawing Br.730

Drawing Br.730

Drawing Br.731

Drawing Br.731

Bibliography

  • Aviation in World War II. Aircraft of France / Aviation collection 10 /
  • Reconnaissance - patrol seaplane Breguet Br.790 "Nautilus" / Andrey Krumkach /