CKD Praga-Isotta Fraschini Asso 750 on:
[Wikipedia]
[Google]
[Amazon]
The Isotta Fraschini Asso 750 was an Italian W 18 water-cooled
aircraft engine
An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Aircraft using power components are referred to as powered flight. Most aircraft engines are either piston engines or gas turbin ...
of the 1930s. Produced by Isotta Fraschini
Isotta Fraschini () is an Italian luxury car manufacturer, also producing trucks, as well as engines for marine and aviation use. Founded in Milan, Italy, in 1900 by Cesare Isotta and the brothers Vincenzo, Antonio, and Oreste Fraschini, in 195 ...
the engine displaced just under and produced up to . Together with the Asso 200 and the Asso 500 the Asso 750 was part of a family of modular engines, that used common and interchangeable components to lower production costs.
Technical description
The W-18 Asso 750 had three six-cylinder in-line banks made of chrome-manganese steel, each joined by a single cast aluminum head for each bank of cylinders.Operational history
A version with an effective power of was optimized for the Savoia-Marchetti S.55X used for the trans-Atlantic flight ofItalo Balbo
Italo Balbo (6 June 1896 – 28 June 1940) was an Fascist Italy (1922–1943), Italian fascist politician and Blackshirts' leader who served as Italy's Marshal of the Air Force, Governor-General of Italian Libya and Commander-in-Chief of Italian ...
.
Variants
;Asso 750: Direct-drive, unsupercharged. ;Asso 750 R.: Development with modifiedcrankcase
A crankcase is the housing in a reciprocating engine, piston engine that surrounds the crankshaft. In most modern engines, the crankcase is integrated into the engine block.
Two-stroke engines typically use a crankcase-compression design, res ...
and crankshaft
A crankshaft is a mechanical component used in a reciprocating engine, piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating Shaft (mechanical engineering), shaft containing one or more crankpins, ...
, fitted with a 0.658:1 reduction gear. Maximum power output .
;Asso 750 R.C.:
;Asso 750 R.C.35: The 750 R. fitted with a supercharger, rated altitude of .
;Asso 750 M: A racing development with bore and stroke, for the Macchi M.67, re-designated Asso 1000 Ri.
Applications
* CANT Z.501 (early versions) *Caproni Ca.111
The Caproni Ca.111 was a long-range reconnaissance aircraft and light bomber produced in Italy during the 1930s. It was a derivative of the Ca.101.
Design and development
A robust and simple aircraft, it was meant to be used in harsh conditions ...
* Macchi M.C.77
* Savoia-Marchetti S.55
* Savoia-Marchetti S.62
* Savoia-Marchetti S.78
Engines on display
At theItalian Air Force Museum
The Italian Air Force Museum is an aircraft museum at Vigna di Valle, on Lake Bracciano (Lazio), in central Italy. It is operated by the . The museum's collection has an emphasis on Italian machines and seaplanes. While maintaining the technical ...
two Isotta Fraschini Asso 750 are exhibited: A direct-drive Asso 750 and an Asso 750 R.C.35 with reduction gear and supercharger.
Specifications (Asso 750)
See also
References
Further reading
* * * * {{Isotta Fraschini aeroengines 1930s aircraft piston engines Asso 750 W engines