Savoia-Marchetti S.74
(Redirected from SIAI-Marchetti S.M.74)
| S.74 | |
|---|---|
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| |
| Role | Airliner then military transport aircraft |
| National origin | Italy |
| Manufacturer | Savoia-Marchetti |
| Designer | Alessandro Marchetti |
| First flight | 16 Nov 1934 |
| Introduction | 1935 |
| Retired | 1943 |
| Primary users | LATI Regia Aeronautica |
| Number built | 3 |
| Developed from | Savoia-Marchetti S.72 |
The Savoia-Marchetti S.74 was a four-engine airliner developed by Savoia-Marchetti for Ala Littoria.
Design and development[edit]
The prototype first flew on 16 November 1934. Only three were ever built.[1]
Operational history[edit]
The aircraft were used in passenger service. On 22 December 1937, one broke the speed record over 1,000 kilometres (620 mi), at 322.089 km/h (200.137 mph).[2] When Italy entered World War II in 1940, they were put into service as military transport aircraft for the Regia Aeronautica. None of the three survived the war.
Operators[edit]
Civil operators[edit]
Military operators[edit]
Specifications (S.74)[edit]
Data from World Encyclopedia of Civil Aircraft,[3] Italian Civil and Military Aircraft 1930–1945[1]
General characteristics
- Crew: 4
- Capacity: 24 passengers + 363 kg (800 lb) baggage + 726 kg (1,600 lb) freight
- Length: 19.49 m (63 ft 11+1⁄2 in)
- Wingspan: 30.00 m (98 ft 5 in)
- Height: 5.50 m (18 ft 0+1⁄2 in)
- Wing area: 119.96 m2 (1,291.2 sq ft)
- Empty weight: 7,784 kg (17,160 lb)
- Gross weight: 14,000 kg (30,865 lb)
- Powerplant: 4 × Piaggio Stella P.X R.C. 9-cylinder air-cooled radial piston engines, 520 kW (700 hp) each for take-off
- Propellers: 3-bladed variable-pitch metal propellers
Performance
- Maximum speed: 330 km/h (210 mph, 180 kn)
- 285 km/h (177 mph; 154 kn) on three engines
- Cruise speed: 300 km/h (190 mph, 160 kn)
- Range: 1,000 km (620 mi, 540 nmi)
- Service ceiling: 7,000 m (22,960 ft)
- Time to altitude: 3,000 m (9,840 ft) in 8 minutes 55 seconds
- 5,000 m (16,400 ft) in 19 minutes 43 seconds
See also[edit]
Aircraft of comparable role, configuration, and era
References[edit]
Wikimedia Commons has media related to Savoia-Marchetti S.74.
- ^ a b Thompson, Jonathon W. (1963). Italian Civil and Military Aircraft 1930–1945. USA: Aero Publishers Inc. pp. 260–261. ISBN 0-8168-6500-0.
- ^ Faurote, Fay Leone (1939). The Aircraft Year Book for 1939. New York City: Manufacturers Aircraft Association. p. 473.
- ^ Angelucci, Enzo (1982). World Encyclopedia of Civil Aircraft. New York: Crown Publishers, Inc. ISBN 0-517-54724-4.
