First produced in 1947, versions were still in production as of 2004[update]. It was produced under licence in the United Kingdom by Rolls-Royce in the 1960s.
Continental O-300 engine installation in a Cessna 172
The C-145 was developed from the 125 hp (93 kW) C-125 engine. Both powerplants share the same crankcase, although the C-145 produces an additional 20 hp (15 kW) through a longer piston stroke, higher compression ratio of 7.0:1 and different carburetor jetting.[1]
The O-300 is a modernized C-145 and retains the same weight, dimensions, bore, stroke, compression ratio, displacement and output power of the earlier engine.[1]
GO-300
The GO-300 employs a reduction gearbox, so that the engine turns at 3200 rpm to produce a propeller rpm of 2400. The GO-300 produces 175 hp (130 kW) whereas the ungeared O-300 produces 145 hp (108 kW).[1]
The GO-300 engine has a TBO (Time Between Overhaul) of 1200 hours, while 1800 hours is the standard for ungeared O-300 engines. The GO-300 engine suffered reliability problems as a result of pilots mishandling the engine and operating it at too low an engine rpm. This caused the Cessna Skylark to develop a poor reputation for engine reliability. Many Skylarks flying today have been converted to different, larger-displacement, direct-drive engines.[2]
Variants
C145
Six-cylinder, 145 hp (108 kW), direct-drive engine.[1]
C145-2
O-300
Modernized C145, 145 hp (108 kW), direct drive engine.[1]
O-300-A
O-300-B
O-300-C
O-300-D
O-300-E
Limited production for the Beagle B.218X twin that never went into production[3]
GO-300
Geared O-300, 175 hp (130 kW) at 3200 crankshaft rpm, 2400 propeller rpm.[1]
GO-300-A
GO-300-C
GO-300-D
Voyager 300
Liquid-cooled, fuel-injected version developing 170 hp (127 kW) at 2,700 rpm.
^Murphy, Daryl (2006). . Archived from the original on 27 February 2009. Retrieved 22 December 2008.
January 07, 2023
continental, c145, family, cooled, flat, aircraft, piston, engines, built, teledyne, continental, motors, 300rolls, royce, display, solent, museum, england, type, piston, aircraft, enginenational, origin, united, statesmanufacturer, continental, motorsmajor, a. The Continental O 300 and the C145 are a family of air cooled flat 6 aircraft piston engines built by Teledyne Continental Motors 1 O 300Rolls Royce Continental O 300 on display at the Solent Sky museum England Type Piston aircraft engineNational origin United StatesManufacturer Continental MotorsMajor applications Cessna 172Cessna T 41 A MescaleroCessna 175 SkylarkCessna 170Maule M 4Produced 1947 Developed from Continental C 125First produced in 1947 versions were still in production as of 2004 update It was produced under licence in the United Kingdom by Rolls Royce in the 1960s Contents 1 Development 1 1 GO 300 2 Variants 3 Applications 3 1 O 300 3 2 GO 300 3 3 Voyager 300 4 Specifications O 300 4 1 General characteristics 4 2 Components 4 3 Performance 5 See also 6 ReferencesDevelopment Edit Continental O 300 engine installation in a Cessna 172 The C 145 was developed from the 125 hp 93 kW C 125 engine Both powerplants share the same crankcase although the C 145 produces an additional 20 hp 15 kW through a longer piston stroke higher compression ratio of 7 0 1 and different carburetor jetting 1 The O 300 is a modernized C 145 and retains the same weight dimensions bore stroke compression ratio displacement and output power of the earlier engine 1 GO 300 Edit The GO 300 employs a reduction gearbox so that the engine turns at 3200 rpm to produce a propeller rpm of 2400 The GO 300 produces 175 hp 130 kW whereas the ungeared O 300 produces 145 hp 108 kW 1 The GO 300 engine has a TBO Time Between Overhaul of 1200 hours while 1800 hours is the standard for ungeared O 300 engines The GO 300 engine suffered reliability problems as a result of pilots mishandling the engine and operating it at too low an engine rpm This caused the Cessna Skylark to develop a poor reputation for engine reliability Many Skylarks flying today have been converted to different larger displacement direct drive engines 2 Variants EditC145 Six cylinder 145 hp 108 kW direct drive engine 1 C145 2 O 300 Modernized C145 145 hp 108 kW direct drive engine 1 O 300 A O 300 B O 300 C O 300 D O 300 E Limited production for the Beagle B 218X twin that never went into production 3 GO 300 Geared O 300 175 hp 130 kW at 3200 crankshaft rpm 2400 propeller rpm 1 GO 300 A GO 300 C GO 300 D Voyager 300 Liquid cooled fuel injected version developing 170 hp 127 kW at 2 700 rpm Rolls Royce Continental O 300 Licence production in the United Kingdom Applications Edit Cessna 175 showing the cowling bulge behind the propeller hub created by the GO 300 reduction gearbox O 300 Edit Aeronca Sedan Baumann Brigadier Cessna 160 intended for production model 4 Cessna 170 Cessna 172 and T 41 Mescalero Maule M 4 Meyers MAC 145 Taylorcraft 15 Temco TE 1AGO 300 Edit Cessna 175 Goodyear GZ 19 and GZ 19AVoyager 300 Edit Alexeev StrizhSpecifications O 300 EditReference Engines for Homebuilt Aircraft amp Ultralights 1 General characteristics Type 6 cylinder air cooled horizontally opposed aircraft piston engine Bore 4 1 16 in 4 0625 in resp 103 12 mm Stroke 3 7 8 in 3 875 in resp 98 425 mm Displacement 301 4 in 4 94 L Length 39 75 in 101 0 cm Width 31 5 in 80 0 cm Height 23 25 in 59 0 cm Dry weight 268 lbs 121 5 kg dry without starter or generatorComponents Cooling system Air cooledPerformance Power output 145 hp 108 kW at 2 700 rpm Specific power 0 58 hp in 26 5 kW L Compression ratio 7 0 1 Power to weight ratio 0 54 hp lb 0 89 kW kg See also EditRelated lists List of aircraft enginesReferences Edit Wikimedia Commons has media related to Continental O 300 a b c d e f g h Christy Joe Engines for Homebuilt Aircraft amp Ultralights pages 60 63 TAB Books 1983 ISBN 0 8306 2347 7 Perdue Scott A Lark That Won t Quit Retrieved 19 December 2008 Flight Global 21 March 1963 p 399 Murphy Daryl 2006 The Cessnas that got away Archived from the original on 27 February 2009 Retrieved 22 December 2008 Retrieved from https en wikipedia org w index php title Continental O 300 amp oldid 1129573853, wikipedia, wiki, book, books, library,
