What Is the New Design Continental 300 Cylinder

O-300
Rolls-Royce Continental O-300.JPG
Rolls-Royce Continental O-300 on display at the Solent Sky museum, England.
Type Piston aircraft engine
National origin USA
Manufacturer Continental Motors
Major applications Cessna 172
Cessna T-41 A Mescalero
Cessna 175 Skylark
Cessna 170
Maule M-4
Produced 1947-
Developed from Continental C-125

The Continental O-300 and the C145 are a family of air-cooled flat-6 aircraft piston engines built by Teledyne Continental Motors.[1]

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.

Development [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 only 1200 hours, while 1800 hours is the standard for ungeared O-300 engines. The GO-300 engine also 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 [edit]

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.
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-1A

GO-300 [edit]

  • Cessna 175
  • Goodyear GZ-19 and GZ-19A

Voyager 300 [edit]

  • Alexeev Strizh

Specifications (O-300) [edit]

Reference: Engines for Homebuilt Aircraft & Ultralights [1]

General characteristics

  • Type: 6-cylinder air-cooled horizontally opposed aircraft piston engine
  • Bore: 4 116 in (4.0625 in resp. 103.12 mm)
  • Stroke: 3 78 in (3.875 in resp. 98.425 mm)
  • Displacement: 301.4 in³ (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 generator

Components

  • Cooling system: Air-cooled

Performance

  • Power output: 145 hp (108 kW) at 2,700 rpm
  • Specific power: 0.58 hp/in³ (26.5 kW/l)
  • Compression ratio: 7.0:1
  • Power-to-weight ratio: 0.54 hp/lb (0.89 kW/kg)

See also [edit]

Related lists

  • List of aircraft engines

References [edit]

  1. ^ a b c d e f g h Christy, Joe: Engines for Homebuilt Aircraft & Ultralights, pages 60-63. TAB Books, 1983. ISBN 0-8306-2347-7
  2. ^ Perdue, Scott (n.d.). "A Lark That Won't Quit". Retrieved 2008-12-19 .
  3. ^ Flight Global, 21 March 1963, p. 399
  4. ^ Murphy, Daryl (2006). "The Cessnas that got away". Archived from the original on 2009-02-27. Retrieved 2008-12-22 .

What Is the New Design Continental 300 Cylinder

Source: https://en.wikipedia.org/wiki/Continental_O-300

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