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Continental IO-550
Continental OL-550

 

  Continental-TSIO-550-C
Continental TSIO-550-C engine installation in a Cessna 400


First rn in 1983, the Continental IO-550 engine is a large family of fuel injected six-cylinder, horizontally opposed, air-cooled aircraft engines that were developed for use in light aircraft by Teledyne Continental Motors. The first IO-550 was delivered in 1983 and the type remains in production through 2010. There is no carburetor-equipped variant, hence the base model is the IO-550.


The IO-550 family of engines was developed from the IO-520 series, with the stroke increased from 4.00 to 4.25 inches, increasing the displacement to 552 cu.in (9.05 l). The engine family covers a power range from 280 hp (209 kW) to 360 hp (268 kW).


The engines were first certified on a regulatory basis of FAR 33, 1 February 1965 amendment, 33-8, 2 May 1977. The first IO-550 model was certified on 13 October 1983.


The IOF-550 is an Aerosance FADEC equipped version of the same basic engine, the TSIO-550 is a dual turbocharged version and the TSIOL-550 is a liquid-cooled variant.

 
Variants:

IO-550-A
300 hp (224 kW) at 2700 rpm, dry weight 430.72 lb (195.37 kg). Certified 13 October 1983.
 
IO-550-B
300 hp (224 kW) at 2700 rpm, dry weight 421.61 lb (191.24 kg). Certified 13 October 1983.
 
IO-550-C
300 hp (224 kW) at 2700 rpm, dry weight 433.20 lb (196.50 kg). Certified 13 October 1983.
 
IO-550-D
300 hp (224 kW) at 2700 rpm, dry weight 437.1 lb (198.3 kg). Certified 23 June 1988.
 
IO-550-E
300 hp (224 kW) at 2700 rpm, dry weight 450.50 lb (204.34 kg). Certified 20 December 1989.
 
IO-550-F
300 hp (224 kW) at 2700 rpm, dry weight 437.1 lb (198.3 kg). Similar to the IO-550-A,B & C, with a top-mounted induction system and 8-quart oil sump. Certified 23 June 1988.
 
IO-550-G
280 hp (209 kW) at 2500 rpm, dry weight 428.97 lb (194.58 kg). Certified 17 March 1989.
 
IO-550-L
300 hp (224 kW) at 2700 rpm, dry weight 438.5 lb (198.9 kg). Certified 23 June 1988.
 
IO-550-N
310 hp (231 kW) at 2700 rpm, dry weight 429.97 lb (195.03 kg). Similar to the IO-550-G with increased power rating. Certified 16 August 1996.
 
IO-550-P
310 hp (231 kW) at 2700 rpm, dry weight 429 lb (195 kg). Similar to the IO-550-N with oil sump from the IO-550-L. Certified 1 March 2000.
 
IO-550-R
310 hp (231 kW) at 2700 rpm, dry weight 439.5 lb (199.4 kg). Similar to the IO-550-N but with the oil sump, oil suction tube and mount legs from the IO-550-B. Certified 1 March 2000.
 
IOF-550-B
300 hp (224 kW) at 2700 rpm, dry weight 447.1 lb (202.8 kg). Similar to the IO-550-B with an Aerosance FADEC fuel and ignition control system. Certified 4 February 2002.
 
IOF-550-C
300 hp (224 kW) at 2700 rpm, dry weight 453.2 lb (205.6 kg). Similar to the IO-550-C with an Aerosance FADEC fuel and ignition control system. Certified 4 February 2002.
 
IOF-550-D
300 hp (224 kW) at 2700 rpm, dry weight 455.0 lb (206.4 kg). Similar to the IO-550-D with an Aerosance FADEC fuel and ignition control system. Certified 4 February 2002.
 
IOF-550-E
300 hp (224 kW) at 2700 rpm, dry weight 462.8 lb (209.9 kg). Similar to the IO-550-E with an Aerosance FADEC fuel and ignition control system. Certified 4 February 2002.
 
IOF-550-F
300 hp (224 kW) at 2700 rpm, dry weight 460.1 lb (208.7 kg). Similar to the IO-550-F with an Aerosance FADEC fuel and ignition control system. Certified 4 February 2002.
 
IOF-550-L
300 hp (224 kW) at 2700 rpm, dry weight 455.0 lb (206.4 kg). Similar to the IO-550-L with an Aerosance FADEC fuel and ignition control system. Certified 4 February 2002.
 
IOF-550-N
310 hp (231 kW) at 2700 rpm, dry weight 460.0 lb (208.7 kg). Similar to the IO-550-N with an Aerosance FADEC fuel and ignition control system. Certified 4 February 2002.
 
IOF-550-P
310 hp (231 kW) at 2700 rpm, dry weight 460.0 lb (208.7 kg). Similar to the IO-550-P with an Aerosance FADEC fuel and ignition control system. Certified 4 February 2002.
 
IOF-550-R
310 hp (231 kW) at 2700 rpm, dry weight 470.5 lb (213.4 kg). Similar to the IO-550-R with an Aerosance FADEC fuel and ignition control system. Certified 4 February 2002.
 
TSIO-550-A
360 hp (268 kW) at 2600 rpm, dry weight 442 lb (200 kg) plus two turbochargers of 28.2 lb (12.8 kg) each.
 
TSIO-550-B
350 hp (261 kW) at 2700 rpm, dry weight 442 lb (200 kg) plus two turbochargers of 28.2 lb (12.8 kg) each. Similar to the TSIO-550-A except with a 12 quart sump, sonic venturii removed and the two stage fuel pump replaced by a single stage fuel pump.
 
TSIO-550-C
310 hp (231 kW) at 2600 rpm, dry weight 442 lb (200 kg) plus two turbochargers of 28.2 lb (12.8 kg) each.
 
TSIO-550-E
350 hp (261 kW) at 2700 rpm, dry weight 442 lb (200 kg) plus two turbochargers of 28.2 lb (12.8 kg) each. Similar to TSIO-550-C with the oil sump and maximum continuous power rating of the TSIO-550-B.
 
TSIO-550-G
310 hp (231 kW) at 2700 rpm, dry weight 554 lb (251 kg) plus two turbochargers of 28.2 lb (12.8 kg) each. Similar to the TSIO-550-E with smaller surface area intercoolers, different oil sump capacity and power rating.
 
TSIO-550-K
315 hp (235 kW) at 2500 rpm, dry weight 522 lb (237 kg) plus two turbochargers of 28.2 lb (12.8 kg) each. Similar to the TSIO-550-E with new oil sump and capacity, decreased maximum continuous power, increased turbo boost pressure, decreased engine speed rating and tapered cylinder barrel fins.
 
TSIOF-550-D
350 hp (261 kW) at 2600 rpm, dry weight 558 lb (253 kg) plus two turbochargers of 35.2 lb (16.0 kg) each. Similar to the TSIOF-550-J except the exhaust system and low voltage harness.
 
TSIOF-550-J
350 hp (261 kW) at 2600 rpm, dry weight 558 lb (253 kg) plus two turbochargers of 35.2 lb (16.0 kg) each. Similar to the TSIO-550-E except for FADEC fuel injection and ignition control, turbochargers, tapered cylinder barrel fins, oil sump and capacity, maximum continuous speed and manifold pressure rating.

 

TSIOF-550-K
315 hp (235 kW) at 2500 rpm, dry weight 537.3 lb (243.7 kg) plus two turbochargers of 28.2 lb (12.8 kg) each. Similar to the TSIO-550-K but with FADEC fuel injection and ignition control.
 
TSIOL-550-A
350 hp (261 kW) at 2700 rpm, dry weight 402 lb (182 kg). Similar to the TSIO-520-NB but with a new cylinder design that uses liquid cooling. The coolant manifold is on top of the cylinder head, with a coolant pump fitted to the starter adapter, driven by the starter adapter shaft and the oil cooler is mounted on the airframe, not the engine. The engine has an AiResearch TA81 turbocharger.
 
TSIOL-550-B
325 hp (242 kW) at 2700 rpm, dry weight 557 lb (253 kg). Similar to the TSIO-520-UB but with a new cylinder design that uses liquid cooling. The coolant manifold is on top of the cylinder head, with a coolant pump fitted to the starter adapter, driven by the propeller shaft using sheaves, the oil cooler is mounted on the airframe, not the engine. A coolant tank and coolant lines are added to the installation. The engine has an AiResearch TS06 turbocharger.

 

TSIOL-550-C
350 hp (261 kW) at 2600 rpm, dry weight 546 lb (248 kg). Similar to the TSIOL-550-A but with the exhaust system and turbocharger bracket from the TSIOL-550-B. The engine is modified to accept the AiResearch TA81 turbocharger. Neither oil nor coolant radiators are provided with the engine.
 
GIO-550-A
A special non-certified geared engine developed for the RU-38 Twin Condor covert reconnaissance aircraft, incorporating 3:2 gear reduction to 2267 rpm.

 
Applications:

IO-550
Beechcraft Baron
Beechcraft Bonanza
Bellanca 17-30
Cessna 182 (STC SA09133SC, modification)
Cessna 206 (modification)
Cessna 350
Cirrus SR22
Cirrus VK-30
Freedom Aviation Phoenix
Lancair ES
Lancair Legacy
Mooney M20
Seawind 300C
Velocity XL-RG
Yakovlev Yak-112

TSIO-550
Adam A500
Cessna 400
Lancair IV
Mooney M20TN
Velocity TXL-RG
Cirrus SR22T

TSIOF-550
Diamond DA50

TSIOL-550
Extra EA-400

GIO-550
RU-38 Twin Condor


Specifications:

IO-550-A
Type: 6-cylinder air-cooled horizontally opposed aircraft piston engine
Bore: 5.25 in (133.4 mm)
Stroke: 4.25 in (108.0 mm)
Displacement: 552 in³ (9.05 L)
Dry weight: 430.72 lb dry (195.37 kg)
Fuel system: TCM fuel injection
Fuel type: 100LL avgas
Cooling system: Air-cooled
Power output: 300 hp (224 kW) at 2,700 rpm
Specific power: 0.54 hp/in³ (24.6 kW/L)
Compression ratio: 8.5:1
Power-to-weight ratio: 0.70 hp/lb (1.15 kW/kg)

 

 


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