Savoia-Marchetti S.55X

E469869

flying boat military aircraft record aircraft seaplane

The Savoia-Marchetti S.55X was an Italian twin-hulled flying boat developed for long-distance flights and famous for its record-setting transatlantic crossings in the early 1930s.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (6)

Label	Occurrences
Savoia-Marchetti S.55	3
Savoia-Marchetti S.55X canonical	3
Savoia-Marchetti S.55 flying boat	1
Savoia-Marchetti S.55X I-BALB	1
Savoia-Marchetti SM.55	1
Savoia-Marchetti SM.55 flying boat	1

How this entity was disambiguated

This entity first appeared as the object of triple T4643564 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Savoia-Marchetti S.55X
Context triple: [Chicago flight of 1933, aircraftType, Savoia-Marchetti S.55X]

A. Savoia-Marchetti SM.75
The Savoia-Marchetti SM.75 was an Italian three-engined transport aircraft of the World War II era, used for both civilian and military roles including long-range transport and liaison duties.
B. Savoia-Marchetti SM.84
The Savoia-Marchetti SM.84 was an Italian World War II twin‑engine medium bomber and torpedo bomber that served as a successor to the SM.79 in front-line roles.
C. Savoia-Marchetti SM.81 Pipistrello
The Savoia-Marchetti SM.81 Pipistrello was an Italian three‑engined bomber-transport aircraft widely employed during the 1930s and World War II.
D. SIAI-Marchetti SF.260
The SIAI-Marchetti SF.260 is an Italian-designed light aircraft widely used as a military trainer and aerobatic platform by numerous air forces around the world.
E. Savoia-Marchetti SM.79 Sparviero
The Savoia-Marchetti SM.79 Sparviero was a distinctive Italian World War II three-engined medium bomber and torpedo bomber, noted for its speed and extensive use in Mediterranean operations.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Savoia-Marchetti S.55X
Target entity description: The Savoia-Marchetti S.55X was an Italian twin-hulled flying boat developed for long-distance flights and famous for its record-setting transatlantic crossings in the early 1930s.

A. Savoia-Marchetti SM.75
The Savoia-Marchetti SM.75 was an Italian three-engined transport aircraft of the World War II era, used for both civilian and military roles including long-range transport and liaison duties.
B. Savoia-Marchetti SM.84
The Savoia-Marchetti SM.84 was an Italian World War II twin‑engine medium bomber and torpedo bomber that served as a successor to the SM.79 in front-line roles.
C. Savoia-Marchetti SM.81 Pipistrello
The Savoia-Marchetti SM.81 Pipistrello was an Italian three‑engined bomber-transport aircraft widely employed during the 1930s and World War II.
D. SIAI-Marchetti SF.260
The SIAI-Marchetti SF.260 is an Italian-designed light aircraft widely used as a military trainer and aerobatic platform by numerous air forces around the world.
E. Savoia-Marchetti SM.79 Sparviero
The Savoia-Marchetti SM.79 Sparviero was a distinctive Italian World War II three-engined medium bomber and torpedo bomber, noted for its speed and extensive use in Mediterranean operations.
F. None of above. chosen

Statements (45)

Predicate	Object
instanceOf	flying boat ⓘ military aircraft ⓘ record aircraft ⓘ seaplane ⓘ
aircraftConfiguration	flying boat hulls ⓘ twin-hull ⓘ
aircraftFamily	Savoia-Marchetti S.55 ⓘ linked to: Savoia-Marchetti S.55X
category	1930s aircraft ⓘ Italian civil aircraft ⓘ Italian military aircraft ⓘ
construction	all-wood airframe ⓘ
countryOfOrigin	Italy ⓘ Kingdom of Italy ⓘ
crew	multiple crew members ⓘ
designedBy	Alessandro Marchetti ⓘ
developedFor	long-distance flights ⓘ transatlantic crossings ⓘ
engineConfiguration	push-pull configuration ⓘ twin engines in tandem ⓘ
era	interwar period ⓘ
firstFlight	early 1930s ⓘ
fuselageType	twin hulls ⓘ
historicalSignificance	helped demonstrate feasibility of long-range overwater flight ⓘ symbol of Italian aviation achievements in the interwar period ⓘ
manufacturer	Savoia-Marchetti ⓘ
notableFor	long-distance formation flights ⓘ record-setting range and endurance ⓘ transatlantic crossings in the early 1930s ⓘ
operator	Italian Air Force ⓘ linked to: Aeronautica Militare Regia Aeronautica ⓘ
powerplant	piston engines ⓘ
propulsion	two propellers ⓘ
role	long-range flying boat ⓘ patrol aircraft ⓘ transport aircraft ⓘ
status	retired ⓘ
takeoffAndLanding	water ⓘ
timePeriod	early 1930s ⓘ
usedBy	Italian government for prestige flights ⓘ
usedFor	mass formation transatlantic flights ⓘ propaganda flights ⓘ record-setting flights ⓘ
usedIn	transatlantic air cruises ⓘ
variantOf	Savoia-Marchetti S.55 ⓘ linked to: Savoia-Marchetti S.55X
wingConfiguration	high-wing ⓘ

How these facts were elicited