|Role||Reconnaissance and bomber aircraft|
|Designer||Umberto Savoia and Ottorino Pomilio|
|Number built||ca. 150|
|Developed from||Savoia-Pomilio SP.1|
The Savoia-Pomilio SP.4 was a reconnaissance and bomber aircraft built in Italy during the First World War. It was a further development of the family of designs that had started with the SP.1. Ultimately all of these took their basic configuration from the Farman MF.11: a biplane with twin tails and a fuselage nacelle that accommodated the crew and a pusher-mounted engine. However, the SP.4 differed both from its Farman antecedent and the previous Savoia-Pomilio designs by featuring twin engines mounted in the interplane gap in place of the single engine in the nacelle. Removing the engine from this position allowed a second machine gun to be placed there instead.
Apart from their intended role as a reconnaissance aircraft and bomber, some SP.4s were used to insert spies and saboteurs behind enemy lines. A further development designated SP.5 remained unbuilt by the end of the war.
Data from "Savoja-Pomilio S.p.4"
- Crew: Two, pilot and observer
- Length: 10.70 m (35 ft 1 in)
- Wingspan: 19.80 m (65 ft 0 in)
- Wing area: 78 m2 (839 ft2)
- Gross weight: 2,300 kg (5,060 lb)
- Powerplant: 2 × Isotta-Fraschini V.4B, 110 kW (150 hp) each
- Maximum speed: 150 km/h (94 mph)
- 2 × machine guns
- Taylor 1989, p.793
- The Illustrated Encyclopedia of Aircraft p.2897
- The Illustrated Encyclopedia of Aircraft p.2898
- "Savoja-Pomilio S.p.4"
- The Illustrated Encyclopedia of Aircraft. London: Aerospace Publishing.
- "Savoja-Pomilio S.p.4". Aerei Italiani. Retrieved 2009-03-04.
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions.