Latécoère 380
Latécoère 380 | |
---|---|
Role | Flying boat mail plane |
National origin | France |
Manufacturer | Latécoère |
First flight | 24 August 1930 |
Primary user | Aéropostale |
Number built | 5 |
The Latécoère 380 was a
The Latécoère 380 was a largely conventional flying boat design, being a parasol-wing monoplane equipped with sponsons set either side of the hull. It was powered by a pair of Hispano-Suiza 12Ydrs engines installed in a tandem push-pull paired arrangement. During September 1931, the first aircraft was used to set six world seaplane records, including three speed-with-load-over-distance records and a closed circuit distance-with-load record of 2,208 km (1,372 mi). A second mail plane was constructed soon afterwards, while a further three military-orientated flying boats, designated Latécoère 381, followed in 1934.
Design
The Latécoère 380 was a twin-engined
The aircraft features an all-metal wing structure that consisted of two box
The Latécoère 380's hull, which was composed entirely of lightweight metals, featured a relatively sharp prow towards its base that widens toward the top.[2] It has two steps, one closer to the stem that assisted with taking off while the second aft step was used for alighting. The hull's structure consisted of numerous frames that were joined by the keel, along with various keelsons and stringers to which the light metal exterior was riveted to.[2] The frames, keel, and keelsons had webs of sheet dualumin with riveted flanges; the frames were supported by inner tubular frames that were sometimes reinforced using triangular frames. Four bulkheads divided the hull into five compartments, which were provisioned with automatically closing doors.[2] The aircraft's exterior was protected against the corrosive sea water via multiple measures, such as an oxidizing bath, a coat of white lead, and all fittings and joints being designed to be water-tight. Extensive use of tubular rivets was made throughout the aircraft's assembly.[2]
The internal volume of the hull was divided into various compartments.
The Latécoère 380 was powered by a pair of
Variants
- Latécoère 380 - mailplane version (2 built)
- Latécoère 381 - maritime patrol version (3 built). Armed with twin 7.5 mm Darne machine guns in three positions, and 300 kg (660 lb) of bombs on underwing racks.
Unbuilt variants
- Latécoère 382 - tandem Hispano engines, weights and performance similar to Latécoère 381.
- Latécoère 383 - 'Un Hydravion d'exploration', with reduced span and wing area and four 350 hp Gnome-Rhône 7Kdengines mounted fore and aft of the wing in tandem pairs. The cabin was enlarged and fitted out as living quarters.
- Latécoère 383 bis - The Latécoère 383 fitted with Latécoère 381 wings.
- Latécoère 384 - The designation of the Latécoère 383 fitted with four 350 hp Hispano-Suiza 9Qaengines.
- Latécoère 384 bis - The designation of the Latécoère 383 bis fitted with four 350 hp Hispano-Suiza 9Qaengines.
- Latécoère 385 - The designation of the Latécoère 383/4 fitted with three 500 hp Gnome-Rhône 9Kbrengines, two tractor and one pusher in wing mounted nacelles.
- Latécoère 386 - The designation of the Latécoère 381 fitted with three 700 hp Gnome-Rhone 14Kbr engines, two tractor and one pusher in wing mounted nacelles.
Operators
- Aéronavale
- Escadrille 3E3 (Saint-Raphaël, 1934)
- Aéropostale
Specifications (Laté 380)
Data from N.A.C.A[6]
General characteristics
- Crew: Three
- Length: 17.20 m (61 ft 5 in)
- Wingspan: 31.40 m (103 ft 0 in)
- Wing area: 130.0 m2 (1,400 sq ft)
- Empty weight: 5,475 kg (12,070 lb)
- Gross weight: 9,475 kg (20,889 lb)
- Powerplant: 2 × Hispano-Suiza 12Ydrs , 511 kW (685 hp) each
Performance
- Maximum speed: 209 km/h (130 mph, 110 kn)
- Range: 4,000 km (2,190 mi, 1,900 nmi)
- Service ceiling: 4,700 m (15,400 ft)
References
Citations
Bibliography
- "Latecoere 38-0 flying boat (French) : a long-range sesquiplane for carrying mail." National Advisory Committee for Aeronautics, 1 February 1931. NACA-AC-136, 93R19715.
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 564.