Liore et Olivier LeO 451

LeO 45 was a French medium bomber used during World War II. The LeO 451 was conceived as a second-generation strategic bomber for the new French Air Force. In contrast to its predecessors which relied on machine guns for protection, the emphasis was placed on high-speed high-altitude cruise. 

The first production LeO 451 was built in 1938. At the start of the Battle of France on 1940-05-10, only 54 of the 222 LeO 451 were considered ready for combat, the remainder being used for training, spares, or undergoing modifications and repairs. Following the Armistice, LeO 451s continued to fly, now under the Vichy government, that used them during the Syria-Lebanon Campaign. Following the war, the 67 surviving aircraft were mostly used as trainers and transports. The LeO 451 was finally retired in September 1957, making it the last pre-war French design to leave active duty.

Liore et Olivier LeO 451
Class Aircraft
Type Bomber
Manufacturer Liore et Olivier
Origin France
Country Name Origin Year
France 1937
ManufacturerName Production From Production To Quantity
Liore et Olivier 561 View

General characteristics

  • Crew: 4
  • Length: 17.17 m (56 ft 4 in)
  • Wingspan: 22.52 m (73 ft 11 in)
  • Height: 5.24 m (17 ft 2 in)
  • Wing area: 66 m (710 ft)
  • Empty weight: 7,530 kg (16,600 lb)
  • Max takeoff weight: 11,398 kg (25,130 lb)
  • Powerplant: 2 x Gnome-Rh x ne 14N 48/49 or 38/39 14-cylinder air-cooled two-row radial engine, 790 kW (1,060 hp) each
  • Fuel capacity: 3,235 l (855 US gal)

Performance

  • Maximum speed: 480 km/h (260 knots, 300 mph) at 4,000 m (13,125 ft)
  • Cruise speed: 420 km/h (225 knots, 260 mph)
  • Range: 2900 km (1,565 nm, 1,800 mi)
  • Service ceiling 9000 m (29,530 ft)

Armament

  • Guns:
    • 1 x 20 mm Hispano-Suiza HS.404 cannon in dorsal turret, 120 rounds
    • 1 x 7.5 mm (0.295 in) MAC 1934 fixed forward-firing machine gun, 300 rounds
    • 1 x 7.5 mm MAC 1934 in "dustbin" retractable ventral turret, 500 rounds
  • Bombs: Up to 1500 kg (3,305 lb) of bombs in fuselage and wing root bomb bays

End notes