The Continental O-520 is a six-cylinder, horizontally opposed aircraft engine produced by

Teledyne Continental Motors Continental Aerospace Technologies is an aircraft engine manufacturer located at the Brookley Aeroplex in Mobile, Alabama, United States. It was originally spun off from automobile engine manufacturer Continental Motors Company in 1929 and owne ...

. First run in 1963 as a development of the IO-346, it has been produced in versions incorporating

fuel injection Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector. This article focuses on fuel injection in reciprocating piston and Wankel rotary engines. All comp ...

(IO-520), turbo-charging (TSIO-520), and gearing (GTSIO-520).

Design and development

The IO-520 series engines normally produce and are used in numerous aircraft such as certain models of the Bellanca Viking 300 and Super Viking, the

Beech Bonanza The Beechcraft Bonanza is an American general aviation aircraft introduced in 1947 by Beechcraft, Beech Aircraft Corporation of Wichita, Kansas. The six-seater, single-engined aircraft is still being produced by Beechcraft and has been in con ...

and

Baron Baron is a rank of nobility or title of honour, often hereditary, in various European countries, either current or historical. The female equivalent is baroness. Typically, the title denotes an aristocrat who ranks higher than a lord or knig ...

, and

Cessna Cessna () is an American brand of general aviation aircraft owned by Textron Aviation since 2014, headquartered in Wichita, Kansas. Originally, it was a brand of the Cessna Aircraft Company, an American general aviation aircraft manufacturing c ...

185- 206-, 210-,

310 __NOTOC__ Year 310 ( CCCX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Andronicus and Probus (or, less frequently, year 1063 '' ...

-, and

400 __NOTOC__ Year 400 ( CD) was a leap year starting on Sunday (link will display the full calendar) of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Stilicho and Aurelianus (or, less frequently, year 11 ...

-series aircraft. The IO-520 remained in production in 2019. The turbocharged GTSIO-520's most common applications are the twin-engine

Cessna 404 The Cessna Model 404 Titan is an American twin-engined, light aircraft built by Cessna Aircraft. It was that company's largest twin piston-engined aircraft at the time of its development in the 1970s. Its US military designation is C-28, and ...

and 421, where it is rated at . The 'G' prefix indicated the incorporation of propeller reduction gearing.

Variants

IO-520

;IO-520-A: 285 hp (213 kW) (Meyers 200) ;IO-520-B: 285 hp (213 kW) (Beech 35-C33A Debonair, s35, model 36 Bonanza) ;IO-520-BA: 285 hp (213 kW) ;IO-520-BB: 285 hp (213 kW) ;IO-520-C: 285 hp (213 kW) ;IO-520-CB: 285 hp (213 kW) ;IO-520-D: 300 hp (224 kW) ;IO-520-E: 300 hp (224 kW) ;IO-520-F: 300 hp (224 kW) ;IO-520-J: 285 hp (213 kW) ;IO-520-K: 300 hp (224 kW) (Bellanca Viking) ;IO-520-L: 300 hp (224 kW) ;IO-520-M: 285 hp (213 kW) ;IO-520-MB: 285 hp (213 kW) ;IO-520-N: 300 hp (224 kW) ;IO-520-NB: 300 hp (224 kW) ;L/IO-520-P:

TSIO-520

;TSIO-520-A: ;TSIO-520-AE: ;LTSIO-520-AE: ;TSIO-520-AF: ;TSIO-520-B: 285 hp (213 kW) ;TSIO-520-BB: 285 hp (213 kW) ;TSIO-520-BE: ;TSIO-520-C: ;TSIO-520-CE: ;TSIO-520-D: 285 hp (213 kW) ;TSIO-520-DB: 285 hp (213 kW) ;TSIO-520-E: ;TSIO-520-EB: ;TSIO-520-G: 285 hp (213 kW) ;TSIO-520-H: ;TSIO-520-J: 310 hp (230 kW) ;TSIO-520-JB: 310 hp (230 kW) ;TSIO-520-K: 285 hp (213 kW) ;TSIO-520-KB: 285 hp (213 kW) ;TSIO-520-L: 310 hp (230 kW) ;TSIO-520-LB: 310 hp (230 kW) ;TSIO-520-M: 285 hp (213 kW) ;TSIO-520-N: 310 hp (230 kW) ;TSIO-520-NB: 310 hp (230 kW) ;TSIO-520-P: 310 hp (230 kW) ;TSIO-520-R: 310 hp (230 kW) ;TSIO-520-T: 310 hp (230 kW) ;TSIO-520-U: ;TSIO-520-UB: ;TSIO-520-VB: ;TSIO-520-WB:

GTSIO-520

;GTSIO-520-C: ;GTSIO-520-D: 375 hp (280 kW) (Cessna 421) ;GTSIO-520-F: ;GTSIO-520-H: 375 hp (280 kW) (Cessna 421B) ;GTSIO-520-K: ;GTSIO-520-L: 375 hp (280 kW) (Cessna 421C) ;GTSIO-520-M: 375 hp (280 kW) (Cessna 404) ;GTSIO-520-N: 375 hp (280 kW) (Cessna 421C) ;GTSIO-520-S: 375 hp (280 kW) (

Tecnam P2012 Traveller The Tecnam P2012 Traveller is an eleven-seat utility aircraft designed and manufactured by the Italian company Costruzioni Aeronautiche Tecnam, based in Capua, Italy, near Naples. In 2009, Cape Air, a commuter airline based in Massachusetts, ...

Design and development

Variants

IO-520

TSIO-520

GTSIO-520

Applications

Specifications (GTSIO-520-D)

See also

References

External links