Lioré et Olivier LeO H-180

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

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

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)

See also

Related lists

• List of flying boats and floatplanes