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Continental IO-520

Family of flat-six piston aircraft engines

Field	Value
name	O-520
image	Continental IO-520 2.jpg
caption	Preserved IO-520
engine_type	Piston aircraft engine
national_origin	United States
manufacturer	Teledyne Continental Motors
first_run	1963
produced	1964-present
major_applications
developed_from	Continental IO-346
developed_into	Continental IO-550

The Continental IO-520 is a six-cylinder, horizontally opposed aircraft engine produced by Teledyne Continental Motors. First run in 1963 as a development of the IO-346, it has been produced in versions incorporating fuel injection (IO-520), turbo-charging (TSIO-520), and gearing (GTSIO-520).

Design and development

The IO-520 series engines normally produce 285 to and are used in numerous aircraft such as certain models of the Bellanca Viking 300 and Super Viking, the Beech Bonanza and Baron, and Cessna 185- 206-, 210-, 310-, and 400-series aircraft. The IO-520 remained in production in 2019.

The geared GTSIO-520's most common applications are the twin-engine Cessna 404 and 421, where it is rated at 375 hp. 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) (Beech V35B(-TC), to 1974) ;IO-520-BB: 285 hp (213 kW) (Beech V35B(-TC), from 1975 on) ;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: 250 hp

TSIO-520

;TSIO-520-A: 255 hp ;TSIO-520-AE: 250 hp ;LTSIO-520-AE: 250 hp ;TSIO-520-AF: 310 hp ;TSIO-520-B: 285 hp (213 kW) ;TSIO-520-BB: 285 hp (213 kW) ;TSIO-520-BE: 310 hp ;TSIO-520-C: 265 hp ;TSIO-520-CE: 325 hp ;TSIO-520-D: 285 hp (213 kW) ;TSIO-520-DB: 285 hp (213 kW) ;TSIO-520-E: 300 hp ;TSIO-520-EB: 300 hp ;TSIO-520-G: 285 hp (213 kW) ;TSIO-520-H: 265 hp ;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: 300 hp ;TSIO-520-UB: 300 hp ;TSIO-520-VB: 325 hp ;TSIO-520-WB: 325 hp

GTSIO-520

;GTSIO-520-C: 340 hp (Beech V35 Bonanza, conversion to V35TC) ;GTSIO-520-D: 375 hp (280 kW) (Cessna 421) ;GTSIO-520-F: 435 hp ;GTSIO-520-H: 375 hp (280 kW) (Cessna 421B) ;GTSIO-520-K: 435 hp ;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)

Applications

Aero Commander 685
Beechcraft Bonanza
Beechcraft Baron 58P
Bellanca Skyrocket II
Bellanca Viking (17-30 and 17-30A)
Cessna 185
Cessna 188
Cessna 206
Cessna 207
Cessna 210
Cessna 303
Cessna 310
Cessna 335
Cessna 340
Cessna 402
Cessna 404
Cessna 414
Cessna 421
Meyers 200D
Navion H Rangemaster
Piper PA-46-310P Malibu
St-Just Super-Cyclone
Tecnam P2012 Traveller
Viper Aircraft Viperfan
Wise GT-400

Specifications (GTSIO-520-D)

and start a new, fully-formatted line with -- |power/weight=0.77 hp/lb (1.27kW/kg)

References

Continental Aerospace Technologies. (2022). "500 Series Engines". continentalmotors.aero.
Federal Aviation Administration. (8 March 2022). "Type Certificate Data Sheet No. E5CE Revision 27".
Federal Aviation Administration. (6 April 2020). "Type Certificate Data Sheet No. E8CE Revision 24".
Federal Aviation Administration. (8 September 2022). "Type Certificate Data Sheet No. E7CE Revision 20".
[http://www.tcmlink.com/EngSpecSheetDocs/GTSIO520D.pdf Product data sheet GTSIO-520-D] {{webarchive. link. (2006-07-17 Retrieved: 21 November 2012)

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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