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Lioré et Olivier 300

From Wikipedia, the free encyclopedia

LeO 300
Paris Air Show 1932 1.jpg
Role Night bomber
National origin France
Manufacturer Lioré et Olivier
First flight 1933
Status retired
Number built 1

The Lioré et Olivier 300 (abbreviated to LeO 300) was a 1930s French prototype night bomber. Only one was built when the programme was abandoned.

Design and development

The LeO 300 was designed to meet a French requirement for a BN.5 category night bomber. It was a high-wing cantilever monoplane with a crew of five. The prototype first flew in September 1933, powered by four 500 hp (373 kW) Renault 12Jb engines mounted in tandem pairs on the wings. The LeO 300 was superseded by the LeO 301 with more powerful engines but with the withdrawal of the requirement it was abandoned in final assembly and work on the programme was stopped.


LeO 300
Prototype four-engine night bomber, one built.
Leo 301
Improved variant with more powerful engines, not completed.


Lioré et Olivier LeO 30 3-view drawing from L'Aerophile Salon 1932
Lioré et Olivier LeO 30 3-view drawing from L'Aerophile Salon 1932

Data from [1]

General characteristics

  • Crew: 5
  • Length: 23.98 m (78 ft 8 in)
  • Wingspan: 38 m (124 ft 8 in)
  • Height: 6 m (19 ft 8 in)
  • Wing area: 185 m2 (1,990 sq ft)
  • Empty weight: 7,600 kg (16,755 lb)
  • Gross weight: 14,800 kg (32,628 lb)
  • Powerplant: 4 × Renault 12Jb V-12 water-cooled piston engines, 370 kW (500 hp) each


  • Maximum speed: 210 km/h (130 mph, 110 kn)
  • Service ceiling: 5,000 m (16,000 ft)


  1. ^ Parmentier, Bruno (1998-12-14). "Lioré et Olivier LeO-300". (in French). Retrieved 10 October 2014.
This page was last edited on 8 December 2020, at 23:39
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