Savoia Marchetti S.55

Savoia Marchetti S.55
Land	Italia
Role	Vliegboot
Eerste vlucht	Augustus 1924
Gebouwd	240+

De Savoia-Marchetti S.55 was een dubbelwandige vliegboot geproduceerd in Italië, beginnend in 1924. Kort na de introductie begon het records te vestigen op het gebied van snelheid, laadvermogen, hoogte en bereik.

Bron: Savoia Marchetti S.55op Wikipedia

Savoia Marchetti S.55 (Jahu) Walk Around
Photographer	Peter Booij
Localisation	Unknow
Photos	60

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General Characteristics and Role

The Savoia-Marchetti S.55 was a unique and revolutionary Italian twin-hulled flying boat developed in the 1920s. Its distinctive design featured two separate boat-like hulls, a thick, high-mounted parasol wing, and engines mounted high above the wing in a tandem (push-pull) configuration. This configuration was intended to keep the propellers clear of water spray. The S.55 was primarily designed as a long-range transport and reconnaissance flying boat. It achieved international fame and recognition for its numerous record-breaking flights, including transatlantic crossings and mass formation flights, which demonstrated the reliability and range of Italian aviation.

Property	Typical Value (S.55A)
Role	Long-Range Transport, Maritime Reconnaissance
National Origin	Kingdom of Italy
Fabrikant	Kanton Savoia-Marchetti
First Flight	Augustus 1924
Bemanning	2 to 5 (depending on mission)
Capaciteit	12 passengers (or equivalent cargo/bombs)
Lengte	16.50 m (54 ft 2 in)
Spanwijdte	24.00 m (78 ft 9 in)
Hoogte	5.00 m (16 ft 5 in)
Max Takeoff Weight	7,000 kg (15,432 lb)

Powerplant and Performance

Engine: Typically 2 x Isotta Fraschini Asso 750 V-12 liquid-cooled piston engines (various engines used across variants).
Power Output (Total): 2 x 560 kW (750 hp) (S.55X model used 800 hp engines).
Maximum Speed: 279 km/h (173 mph; 151 kn).
Cruise Speed: 240 km/h (150 mph; 130 kn).
Range: 3,500 km (2,200 mi; 1,900 nmi).
Key Feature: The tandem engine placement (one pusher, one tractor) on the central strut was designed to improve efficiency and reduce water interference.

Record Flights and Legacy

Transatlantic Success: The S.55 achieved worldwide fame, most notably through flights led by Italian aviator and Air Minister Italo Balbo.
The “Crociera Aerea del Decennale”: In 1933, Balbo led a formation of 24 S.55X flying boats from Rome to Chicago (via Iceland and Newfoundland) and back, a stunning display of long-range formation flying and reliability.
Design Principle: The split-hull design concentrated the mass near the water line for stability, while the elevated wing and tail boom structure kept them clear of the spray.
Operational Use: Served with the Regia Aeronautica (Italian Royal Air Force) for patrol and bombing duties until the mid-1930s.

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