The Lioré et Olivier 300 (abbreviated to LeO 300) was a 1930s French prototype night

bomber A bomber is a military combat aircraft designed to attack ground and naval targets by dropping air-to-ground weaponry (such as bombs), launching aerial torpedo, torpedoes, or deploying air-launched cruise missiles. The first use of bombs dropped ...

. 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 A cantilever is a rigid structural element that extends horizontally and is supported at only one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached. Like other structural elements, a canti ...

monoplane A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes. A monoplane has inherently the highest efficiency and lowest drag of any wing confi ...

with a crew of five. The prototype first flew in September 1933, powered by four

Renault 12Jb Groupe Renault ( , , , also known as the Renault Group in English; legally Renault S.A.) is a French multinational automobile manufacturer established in 1899. The company produces a range of cars and vans, and in the past has manufactured ...

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 The LeO 300 was superseded by the LeO 301 with more powerful engines but with the withdrawal of the requirement it was abandoned in final assembly and work on the programme was stopped.

Variants

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

Specifications

References

;Notes ;Bibliography * {{DEFAULTSORT:Liore et Olivier 300 1930s French bomber aircraft

300 __NOTOC__ Year 300 (Roman numerals, CCC) was a leap year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantius and Valerius (or, less frequently, ...

High-wing aircraft Four-engined push-pull aircraft Aircraft first flown in 1933