Continental O-520


The Continental O-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, turbo-charging, and gearing.

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 and Baron, and Cessna 185- 206-, 210-, 310-, and 400-series aircraft. The IO-520 remained in production in 2019.
The turbocharged GTSIO-520's most common applications are the twin-engine Cessna 404 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
;IO-520-B: 285 hp
;IO-520-BA: 285 hp
;IO-520-BB: 285 hp
;IO-520-C: 285 hp
;IO-520-CB: 285 hp
;IO-520-D: 300 hp
;IO-520-E: 300 hp
;IO-520-F: 300 hp
;IO-520-J: 285 hp
;IO-520-K: 300 hp
;IO-520-L: 300 hp
;IO-520-M: 285 hp
;IO-520-MB: 285 hp
;IO-520-N: 300 hp
;IO-520-NB: 300 hp
;L/IO-520-P:

TSIO-520

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

GTSIO-520

;GTSIO-520-C:
;GTSIO-520-D: 375 hp
;GTSIO-520-F:
;GTSIO-520-H: 375 hp
;GTSIO-520-K:
;GTSIO-520-L: 375 hp
;GTSIO-520-M: 375 hp
;GTSIO-520-N: 375 hp

Applications

Specifications (GTSIO-520-D)