Lioré et Olivier LeO H-180

LeO H-180
Role	Two-seat flying-boat
National origin	France
Manufacturer	Lioré et Olivier
First flight	1928
Number built	6

The Lioré et Olivier LeO H-180 was a 1920s French two-seat flying-boat built by Lioré et Olivier.^[1]

Development

The H-180 first flew in 1928 and was a cantilever high-wing monoplane flying-boat.^[1] Powered by a 120 hp (89 kW) Salmson 9Ac engine strut-mounted above the fuselage.^[1] It had two side-by-side seats in an open cockpit but the following year it was fitted with an enclosed cockpit and re-designated the LeO H-181.^[1] The company intended to build a production batch of ten aircraft but only five H-181s were built.^[1] One aircraft was destroyed and the others finding no buyers were used as test aircraft by the company.^[1]

Variants

H-180: Two-seat touring / training flying boat; 1 built.^[2]
H-181: An enclosed cockpit version, with increased span and longer fuselage; 5 built.^[3]

Specifications (H-180)

Lioré et Olivier LeO H-180 3-view drawing from L'Aéronautique June,1928

Data from Flight,^[4] Jane's all the World's Aircraft 1928^[5]

General characteristics

Crew: 2, (1 pilot)
Capacity: (1 pax)
Length: 7.25 m (23 ft 9 in)
Wingspan: 11.2 m (36 ft 9 in)
Height: 2.2 m (7 ft 3 in)
Wing area: 17.2 m² (185 sq ft)
Empty weight: 680 kg (1,499 lb)
Gross weight: 960 kg (2,116 lb)
Powerplant: 1 × Salmson 9Ac 9-cylinder air-cooled radial piston engine, 89 kW (120 hp)
Propellers: 2-bladed fixed pitch pusher propeller

Performance

Maximum speed: 165 km/h (103 mph, 89 kn)
Cruise speed: 140 km/h (87 mph, 76 kn)
Range: 520 km (320 mi, 280 nmi)
Service ceiling: 3,500 m (11,500 ft)
Time to altitude: 20 min to 2,000 m (6,600 ft)
Wing loading: 55.8 kg/m² (11.4 lb/sq ft)
Power/mass: 0.09341 kW/kg (0.05682 hp/lb)

References

^ ^a ^b ^c ^d ^e ^f The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing. p. 2334.
^ Parmentier, Bruno (13 December 1998). "Lioré et Olivier LeO H-180, Hydravion d'entrainement par Aviafrance". Aviafrance (in French). Pariz. Retrieved 18 February 2018.
^ Parmentier, Bruno (13 December 1998). "Lioré et Olivier LeO H-181, Hydravion d'entrainement par Aviafrance". Aviafrance (in French). Pariz. Retrieved 18 February 2018.
^ "The Leo H.18". Flight. Vol. XXI, no. 29. 18 July 1929. pp. 724–725. Archived from the original on 22 December 2017.
^ Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. p. 108c.

Bibliography

Hartmann, Gérard. Les Avions Lioré Et Olivier. Boulogne-Billancourt, France: ETAI. 2002. ISBN 2-7268-8607-8 (in French)

[orbis-1] ^ ^a ^b ^c ^d ^e ^f The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing. p. 2334.

[avh-180-2] Parmentier, Bruno (13 December 1998). "Lioré et Olivier LeO H-180, Hydravion d'entrainement par Aviafrance". Aviafrance (in French). Pariz. Retrieved 18 February 2018.

[avh-181-3] Parmentier, Bruno (13 December 1998). "Lioré et Olivier LeO H-181, Hydravion d'entrainement par Aviafrance". Aviafrance (in French). Pariz. Retrieved 18 February 2018.

[flight_29_p724-5-4] "The Leo H.18". Flight. Vol. XXI, no. 29. 18 July 1929. pp. 724–725. Archived from the original on 22 December 2017.

[JAWA1928-5] Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. p. 108c.

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