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Family of flat-six piston aircraft engines
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 (IO-520 ),
turbo-charging (TSIO-520 ), and gearing (GTSIO-520 ).
Design and development
The IO-520 series engines normally produce 285 to 310 horsepower (213 to 231 kW) 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.
[1]
The turbocharged GTSIO-520's most common applications are the twin-engine
Cessna 404 and
421 , where it is rated at 375 hp (280 kW). The 'G' prefix indicated the incorporation of propeller reduction gearing.
Variants
IO-520
IO-520-A
285 hp (213 kW)
[2] (Meyers 200)
IO-520-B
285 hp (213 kW)
[2] (Beech 35-C33A Debonair, s35, model 36 Bonanza)
IO-520-BA
285 hp (213 kW)
[2]
IO-520-BB
285 hp (213 kW)
[2]
IO-520-C
285 hp (213 kW)
[2]
IO-520-CB
285 hp (213 kW)
[2]
IO-520-D
300 hp (224 kW)
[2]
IO-520-E
300 hp (224 kW)
[2]
IO-520-F
300 hp (224 kW)
[2]
IO-520-J
285 hp (213 kW)
[2]
IO-520-K
300 hp (224 kW)
[2] (Bellanca Viking)
IO-520-L
300 hp (224 kW)
[2]
IO-520-M
285 hp (213 kW)
[2]
IO-520-MB
285 hp (213 kW)
[2]
IO-520-N
300 hp (224 kW)
[2]
IO-520-NB
300 hp (224 kW)
[2]
L/IO-520-P
250 hp (186 kW)
[2]
TSIO-520
TSIO-520-A
255 hp (190 kW)
[3]
TSIO-520-AE
250 hp (186 kW)
[3]
LTSIO-520-AE
250 hp (186 kW)
[3]
TSIO-520-AF
310 hp (231 kW)
[3]
TSIO-520-B
285 hp (213 kW)
[3]
TSIO-520-BB
285 hp (213 kW)
[3]
TSIO-520-BE
310 hp (231 kW)
[3]
TSIO-520-C
265 hp (198 kW)
[3]
TSIO-520-CE
325 hp (242 kW)
[3]
TSIO-520-D
285 hp (213 kW)
[3]
TSIO-520-DB
285 hp (213 kW)
[3]
TSIO-520-E
300 hp (224 kW)
[3]
TSIO-520-EB
300 hp (224 kW)
[3]
TSIO-520-G
285 hp (213 kW)
[3]
TSIO-520-H
265 hp (198 kW)
[3]
TSIO-520-J
310 hp (230 kW)
[3]
TSIO-520-JB
310 hp (230 kW)
[3]
TSIO-520-K
285 hp (213 kW)
[3]
TSIO-520-KB
285 hp (213 kW)
[3]
TSIO-520-L
310 hp (230 kW)
[3]
TSIO-520-LB
310 hp (230 kW)
[3]
TSIO-520-M
285 hp (213 kW)
[3]
TSIO-520-N
310 hp (230 kW)
[3]
TSIO-520-NB
310 hp (230 kW)
[3]
TSIO-520-P
310 hp (230 kW)
[3]
TSIO-520-R
310 hp (230 kW)
[3]
TSIO-520-T
310 hp (230 kW)
[3]
TSIO-520-U
300 hp (224 kW)
[3]
TSIO-520-UB
300 hp (224 kW)
[3]
TSIO-520-VB
325 hp (242 kW)
[3]
TSIO-520-WB
325 hp (242 kW)
[3]
GTSIO-520
GTSIO-520-C
340 hp (254 kW)
[4]
GTSIO-520-D
375 hp (280 kW)
[4] (Cessna 421)
GTSIO-520-F
435 hp (324 kW)
[4]
GTSIO-520-H
375 hp (280 kW)
[4] (Cessna 421B)
GTSIO-520-K
435 hp (324 kW)
[4]
GTSIO-520-L
375 hp (280 kW)
[4] (Cessna 421C)
GTSIO-520-M
375 hp (280 kW)
[4] (Cessna 404)
GTSIO-520-N
375 hp (280 kW)
[4] (Cessna 421C)
GTSIO-520-S
375 hp (280 kW)
[4] (
Tecnam P2012 Traveller )
Applications
Specifications (GTSIO-520-D)
Data from Continental Motors.
[5]
General characteristics
Type: 6-cylinder horizontally opposed aircraft engine
Bore : 5.25 in (133.35 mm)
Stroke : 4.00 (101.6 mm)
Displacement : 520 in3 (8.51 litres)
Length: 63.63 in (161.6 cm)
Width: 34.04 in (86.5 cm)
Height: 26.63 in (67.6 cm)
Dry weight : 484 lb (219.5 kg) without accessories
Components
Valvetrain : Overhead valve
Fuel system: TCM fuel injection
Fuel type: 100/130 Octane
avgas
Cooling system: Air-cooled
Performance
See also
References
External links
Media related to
Continental O-520 at Wikimedia Commons