Savoia-Marchetti S.74
# Savoia-Marchetti S.74

The Savoia-Marchetti S.74 was a four-engine airliner developed by Savoia-Marchetti for Ala Littoria.

## Design and development

The prototype first flew on 16 November 1934. Only three were ever built.

## Operational history

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). 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

### Civil operators

**Kingdom of Italy**

* LATI

### Military operators

**Kingdom of Italy**

* Regia Aeronautica

## Specifications (S.74)

Data from World Encyclopedia of Civil Aircraft, Italian Civil and Military Aircraft 1930–1945

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 $m^2$ (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
