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Lycoming O-235

The Lycoming O-235 is a family of four-cylinder, air-cooled, horizontally opposed piston aircraft engines that produce 100 to 135 hp (75 to 101 kW), derived from the earlier O-233 engine.[1][2]

O-235
A Lycoming O-235-C2C engine mounted in an American Aviation AA-1 Yankee light aircraft.
Type Certified piston aero-engine
National origin United States
Manufacturer Lycoming Engines
First run 1941
Major applications Cessna 152
Piper Tomahawk
Grumman American AA-1
Beechcraft Skipper
Produced 1942–present
Developed from Lycoming O-233
Developed into Lycoming IO-233

Well-known designs that use versions of the O-235 included the Cessna 152, Grumman American AA-1 series, Beechcraft Model 77 Skipper, Piper PA-38 Tomahawk, American Champion Citabria, Piper Clipper, and the Piper PA-22-108 Colt.

Development

The engines are all carburetor-equipped, feature dual magneto ignition and have a displacement of 233 cubic inches (3.82 L). The first O-235 model was certified on 11 February 1942.[2]

The O-235 was developed into the lighter-weight Lycoming IO-233 engine for light sport aircraft.[3]

Variants

O-235-C1
Power 115 hp (86 kW) at 2800 rpm, dry weight 246 lb (112 kg) Provision for dual pump drives, tractor and pusher installation.[2]
O-235-C1A
Power 100 hp (75 kW) at 2450 rpm, dry weight 236 lb (107 kg) Similar to O-235-C1 except ignition timing, lower rpm and power. Optional 2 position or automatic propeller governor drive.[2]
O-235-C1B
Power 115 hp (86 kW) at 2800 rpm, dry weight 245 lb (111 kg) Similar to O-235-C1 except with retarded breaker magnetos.[2]
O-235-C1C
Power 108 hp (81 kW) at 2600 rpm, dry weight 243 lb (110 kg) Similar to O-235-C1 except with Slick magnetos.[2]
O-235-C2A
Power 115 hp (86 kW) at 2800 rpm, dry weight 246 lb (112 kg) Similar to O-235-C1 except with a type 1 propeller flange.[2]
O-235-C2B
Power 115 hp (86 kW) at 2800 rpm, dry weight 247 lb (112 kg) Similar to O-235-C2A but with two S-1200 series magnetos.[2]
O-235-C2C
Power 108 hp (81 kW) at 2600 rpm, alternate rated maximum continuous power rating of 100 hp at 2400 rpm, dry weight 244 lb (111 kg) Similar to O-235-C2B except with Slick magnetos and shielded ignition harness.[2]
O-235-E1
Power 115 hp (86 kW) at 2800 rpm, dry weight 250 lb (113 kg) Similar to O-235-C1 except crankcase and crankshaft supply pressurized oil to a constant speed propeller. Accessory case changed to accommodate a standard propeller governor drive.[2]
O-235-E1B
Power 115 hp (86 kW) at 2800 rpm, dry weight 249 lb (113 kg) Similar to O-235-E1 except for S4LN-200 series retarded breaker magnetos.[2]
O-235-E2A
Power 115 hp (86 kW) at 2800 rpm, dry weight 250 lb (113 kg) Similar to O-235-E1 except Type 1 propeller flange.[2]
O-235-E2B
Power 115 hp (86 kW) at 2800 rpm, dry weight 251 lb (114 kg) Similar to O-235-E2A except incorporates S-1200 series magnetos.[2]
O-235-F1
Power 125 hp (93 kW) at 2800 rpm, dry weight 250 lb (113 kg) Similar to O-235-C1 except compression ratio, fuel grade and rating.[2]
O-235-F1B
Power 125 hp (93 kW) at 2800 rpm, dry weight 249 lb (113 kg) Similar to O-235-F1 except retarded breaker magnetos.[2]
O-235-F2A
Power 125 hp (93 kW) at 2800 rpm, dry weight 250 lb (113 kg) Similar to O-235-F1 except a Type 1 propeller flange.[2]
O-235-F2B
Power 125 hp (93 kW) at 2800 rpm, dry weight 251 lb (114 kg) Similar to O-235-F2A but with S-1200 series magnetos.[2]
O-235-G1
Power 125 hp (93 kW) at 2800 rpm, dry weight 253 lb (115 kg) Similar to O-235-F1 except provisions for using constant speed propeller.[2]
O-235-G1B
Power 125 hp (93 kW) at 2800 rpm, dry weight 252 lb (114 kg) Similar to O-235-G1 except has retarded breaker magnetos.[2]
O-235-G2A
Power 125 hp (93 kW) at 2800 rpm, dry weight 253 lb (115 kg) Similar to O-235-G1 except a Type 1 propeller flange.[2]
O-235-G2B
Power 125 hp (93 kW) at 2800 rpm, dry weight 254 lb (115 kg) Similar to O-235-G2A except S-1200 series magnetos.[2]
O-235-H2C
Power 108 hp (81 kW) at 2600 rpm, alternate rated maximum continuous power rating of 100 hp at 2400 rpm, dry weight 243 lb (110 kg) Similar to O-235-C2C except Type 1 dynafocal mounting.[2]
O-235-J2A
Power 125 hp (93 kW) at 2800 rpm, dry weight 252 lb (114 kg) Similar to O-235-J2B except magnetos.[2]
O-235-J2B
Power 125 hp (93 kW) at 2800 rpm, dry weight 253 lb (115 kg) Similar to O-235-F2B except Type 1 dynafocal mounting.[2]
O-235-K2A
Power 118 hp (88 kW) at 2800 rpm, dry weight 252 lb (114 kg) Similar to O-235-F2A except ignition timing, lower power and reduced compression ratio.[2]
O-235-K2B
Power 118 hp (88 kW) at 2800 rpm, dry weight 253 lb (115 kg) Similar to O-235-F2B except ignition timing, lower power and reduced compression ratio.[2]
O-235-K2C
Power 115 hp (86 kW) at 2700 rpm, dry weight 248 lb (112 kg) Similar to O-235-K2A except Slick magnetos.[2]
O-235-L2A
Power 118 hp (88 kW) at 2800 rpm, alternate ratings of 115 hp (86 kW) at 2700 rpm, 112 hp (84 kW) at 2600 rpm, 110 hp (82 kW) at 2550 rpm and 105 hp (78 kW) at 2400 rpm, dry weight 252 lb (114 kg) Similar to O-235-J2A except ignition timing, lower power and reduced compression ratio.[2]
O-235-L2C
Power 115 hp (86 kW) at 2700 rpm, alternate ratings of 115 hp (86 kW) at 2700 rpm, 112 hp (84 kW) at 2600 rpm, 110 hp (82 kW) at 2550 rpm and 105 hp (78 kW) at 2400 rpm, dry weight 249 lb (113 kg) Similar to O-235-L2A except Slick magnetos and lower maximum continuous rating.[2]
O-235-M1
Power 118 hp (88 kW) at 2800 rpm, alternate ratings of 115 hp (86 kW) at 2700 rpm, 112 hp (84 kW) at 2600 rpm, 110 hp (82 kW) at 2550 rpm and 105 hp (78 kW) at 2400 rpm, dry weight 255 lb (116 kg) Similar to -L2A except provision for controllable propeller and has AS-127 Type 2 propeller flange.[2]
O-235-M2C
Power 118 hp (88 kW) at 2800 rpm, alternate ratings of 115 hp (86 kW) at 2700 rpm, 112 hp (84 kW) at 2600 rpm, 110 hp (82 kW) at 2550 rpm and 105 hp (78 kW) at 2400 rpm, dry weight 252 lb (114 kg) Similar to O-235-M1 except Slick 4200 series magnetos and Type 1 propeller flange.[2]
O-235-M3C
Power 118 hp (88 kW) at 2800 rpm, alternate ratings of 115 hp (86 kW) at 2700 rpm, 112 hp (84 kW) at 2600 rpm, 110 hp (82 kW) at 2550 rpm and 105 hp (78 kW) at 2400 rpm, dry weight 252 lb (114 kg) Similar to O-235-M1 except Slick 4200 series magnetos.[2]
O-235-N2A
Power 116 hp (87 kW) at 2800 rpm, alternate ratings of 113 hp (84 kW) at 2700 rpm, 110 hp (82 kW) at 2600 rpm, 108 hp (81 kW) at 2550 rpm and 103 hp (77 kW) at 2400 rpm, dry weight 252 lb (114 kg) Similar to O-235-L2A except reduced compression ratio and reduced power ratings.[2]
O-235-N2C
Power 116 hp (87 kW) at 2800 rpm, alternate ratings of 113 hp (84 kW) at 2700 rpm, 110 hp (82 kW) at 2600 rpm, 108 hp (81 kW) at 2550 rpm and 103 hp (77 kW) at 2400 rpm, dry weight 249 lb (113 kg) Similar to O-235-L2C except reduced compression ratio and reduced power ratings.[2]
O-235-P1
Power 116 hp (87 kW) at 2800 rpm, alternate ratings of 113 hp (84 kW) at 2700 rpm, 110 hp (82 kW) at 2600 rpm, 108 hp (81 kW) at 2550 rpm and 103 hp (77 kW) at 2400 rpm, dry weight 255 lb (116 kg) Similar to O-235-M1 except reduced compression ratio and reduced power ratings.[2]
O-235-P2A
Power 116 hp (87 kW) at 2800 rpm, alternate ratings of 113 hp (84 kW) at 2700 rpm, 110 hp (82 kW) at 2600 rpm, 108 hp (81 kW) at 2550 rpm and 103 hp (77 kW) at 2400 rpm, dry weight 255 lb (116 kg) Similar to O-235-P1 except a Type 1 propeller flange.[2]
O-235-P2C
Power 116 hp (87 kW) at 2800 rpm, alternate ratings of 113 hp (84 kW) at 2700 rpm, 110 hp (82 kW) at 2600 rpm, 108 hp (81 kW) at 2550 rpm and 103 hp (77 kW) at 2400 rpm, dry weight 252 lb (114 kg) Similar to O-235-M2 except reduced compression ratio and reduced power ratings.[2]
O-235-P3C
Power 116 hp (87 kW) at 2800 rpm, alternate ratings of 113 hp (84 kW) at 2700 rpm, 110 hp (82 kW) at 2600 rpm, 108 hp (81 kW) at 2550 rpm and 103 hp (77 kW) at 2400 rpm, dry weight 252 lb (114 kg) Similar to O-235-M3C except reduced compression ratio and reduced power ratings.[2]

Applications

Specifications (O-235-C2C)

Data from Operator's Manual, Textron Lycoming Aircraft Engines.[1]

General characteristics

Components

Performance

See also

Comparable engines

Related lists

References

  1. ^ a b Textron Lycoming: Operator's Manual, Textron Lycoming Aircraft Engines, Series O-235 & O-290, 4th Edition January 1988, Pages 2-1 & 2-4, Stock # 60297-9, Textron Lycoming.
  2. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al Federal Aviation Administration (December 2003). "TYPE CERTIFICATE DATA SHEET NO. E-223" (PDF). Retrieved 2008-11-30.
  3. ^ Lycoming Engines (July 2008). . Archived from the original on 2010-11-26. Retrieved 2009-04-03.

External links

  • Lycoming 235 Series - Manufacturer's home page

lycoming, family, four, cylinder, cooled, horizontally, opposed, piston, aircraft, engines, that, produce, derived, from, earlier, engine, 235a, engine, mounted, american, aviation, yankee, light, aircraft, type, certified, piston, aero, enginenational, origin. The Lycoming O 235 is a family of four cylinder air cooled horizontally opposed piston aircraft engines that produce 100 to 135 hp 75 to 101 kW derived from the earlier O 233 engine 1 2 O 235A Lycoming O 235 C2C engine mounted in an American Aviation AA 1 Yankee light aircraft Type Certified piston aero engineNational origin United StatesManufacturer Lycoming EnginesFirst run 1941Major applications Cessna 152Piper TomahawkGrumman American AA 1Beechcraft SkipperProduced 1942 presentDeveloped from Lycoming O 233Developed into Lycoming IO 233Well known designs that use versions of the O 235 included the Cessna 152 Grumman American AA 1 series Beechcraft Model 77 Skipper Piper PA 38 Tomahawk American Champion Citabria Piper Clipper and the Piper PA 22 108 Colt Contents 1 Development 2 Variants 3 Applications 4 Specifications O 235 C2C 4 1 General characteristics 4 2 Components 4 3 Performance 5 See also 6 References 7 External linksDevelopment EditThe engines are all carburetor equipped feature dual magneto ignition and have a displacement of 233 cubic inches 3 82 L The first O 235 model was certified on 11 February 1942 2 The O 235 was developed into the lighter weight Lycoming IO 233 engine for light sport aircraft 3 Variants EditO 235 C1 Power 115 hp 86 kW at 2800 rpm dry weight 246 lb 112 kg Provision for dual pump drives tractor and pusher installation 2 O 235 C1A Power 100 hp 75 kW at 2450 rpm dry weight 236 lb 107 kg Similar to O 235 C1 except ignition timing lower rpm and power Optional 2 position or automatic propeller governor drive 2 O 235 C1B Power 115 hp 86 kW at 2800 rpm dry weight 245 lb 111 kg Similar to O 235 C1 except with retarded breaker magnetos 2 O 235 C1C Power 108 hp 81 kW at 2600 rpm dry weight 243 lb 110 kg Similar to O 235 C1 except with Slick magnetos 2 O 235 C2A Power 115 hp 86 kW at 2800 rpm dry weight 246 lb 112 kg Similar to O 235 C1 except with a type 1 propeller flange 2 O 235 C2B Power 115 hp 86 kW at 2800 rpm dry weight 247 lb 112 kg Similar to O 235 C2A but with two S 1200 series magnetos 2 O 235 C2C Power 108 hp 81 kW at 2600 rpm alternate rated maximum continuous power rating of 100 hp at 2400 rpm dry weight 244 lb 111 kg Similar to O 235 C2B except with Slick magnetos and shielded ignition harness 2 O 235 E1 Power 115 hp 86 kW at 2800 rpm dry weight 250 lb 113 kg Similar to O 235 C1 except crankcase and crankshaft supply pressurized oil to a constant speed propeller Accessory case changed to accommodate a standard propeller governor drive 2 O 235 E1B Power 115 hp 86 kW at 2800 rpm dry weight 249 lb 113 kg Similar to O 235 E1 except for S4LN 200 series retarded breaker magnetos 2 O 235 E2A Power 115 hp 86 kW at 2800 rpm dry weight 250 lb 113 kg Similar to O 235 E1 except Type 1 propeller flange 2 O 235 E2B Power 115 hp 86 kW at 2800 rpm dry weight 251 lb 114 kg Similar to O 235 E2A except incorporates S 1200 series magnetos 2 O 235 F1 Power 125 hp 93 kW at 2800 rpm dry weight 250 lb 113 kg Similar to O 235 C1 except compression ratio fuel grade and rating 2 O 235 F1B Power 125 hp 93 kW at 2800 rpm dry weight 249 lb 113 kg Similar to O 235 F1 except retarded breaker magnetos 2 O 235 F2A Power 125 hp 93 kW at 2800 rpm dry weight 250 lb 113 kg Similar to O 235 F1 except a Type 1 propeller flange 2 O 235 F2B Power 125 hp 93 kW at 2800 rpm dry weight 251 lb 114 kg Similar to O 235 F2A but with S 1200 series magnetos 2 O 235 G1 Power 125 hp 93 kW at 2800 rpm dry weight 253 lb 115 kg Similar to O 235 F1 except provisions for using constant speed propeller 2 O 235 G1B Power 125 hp 93 kW at 2800 rpm dry weight 252 lb 114 kg Similar to O 235 G1 except has retarded breaker magnetos 2 O 235 G2A Power 125 hp 93 kW at 2800 rpm dry weight 253 lb 115 kg Similar to O 235 G1 except a Type 1 propeller flange 2 O 235 G2B Power 125 hp 93 kW at 2800 rpm dry weight 254 lb 115 kg Similar to O 235 G2A except S 1200 series magnetos 2 O 235 H2C Power 108 hp 81 kW at 2600 rpm alternate rated maximum continuous power rating of 100 hp at 2400 rpm dry weight 243 lb 110 kg Similar to O 235 C2C except Type 1 dynafocal mounting 2 O 235 J2A Power 125 hp 93 kW at 2800 rpm dry weight 252 lb 114 kg Similar to O 235 J2B except magnetos 2 O 235 J2B Power 125 hp 93 kW at 2800 rpm dry weight 253 lb 115 kg Similar to O 235 F2B except Type 1 dynafocal mounting 2 O 235 K2A Power 118 hp 88 kW at 2800 rpm dry weight 252 lb 114 kg Similar to O 235 F2A except ignition timing lower power and reduced compression ratio 2 O 235 K2B Power 118 hp 88 kW at 2800 rpm dry weight 253 lb 115 kg Similar to O 235 F2B except ignition timing lower power and reduced compression ratio 2 O 235 K2C Power 115 hp 86 kW at 2700 rpm dry weight 248 lb 112 kg Similar to O 235 K2A except Slick magnetos 2 O 235 L2A Power 118 hp 88 kW at 2800 rpm alternate ratings of 115 hp 86 kW at 2700 rpm 112 hp 84 kW at 2600 rpm 110 hp 82 kW at 2550 rpm and 105 hp 78 kW at 2400 rpm dry weight 252 lb 114 kg Similar to O 235 J2A except ignition timing lower power and reduced compression ratio 2 O 235 L2C Power 115 hp 86 kW at 2700 rpm alternate ratings of 115 hp 86 kW at 2700 rpm 112 hp 84 kW at 2600 rpm 110 hp 82 kW at 2550 rpm and 105 hp 78 kW at 2400 rpm dry weight 249 lb 113 kg Similar to O 235 L2A except Slick magnetos and lower maximum continuous rating 2 O 235 M1 Power 118 hp 88 kW at 2800 rpm alternate ratings of 115 hp 86 kW at 2700 rpm 112 hp 84 kW at 2600 rpm 110 hp 82 kW at 2550 rpm and 105 hp 78 kW at 2400 rpm dry weight 255 lb 116 kg Similar to L2A except provision for controllable propeller and has AS 127 Type 2 propeller flange 2 O 235 M2C Power 118 hp 88 kW at 2800 rpm alternate ratings of 115 hp 86 kW at 2700 rpm 112 hp 84 kW at 2600 rpm 110 hp 82 kW at 2550 rpm and 105 hp 78 kW at 2400 rpm dry weight 252 lb 114 kg Similar to O 235 M1 except Slick 4200 series magnetos and Type 1 propeller flange 2 O 235 M3C Power 118 hp 88 kW at 2800 rpm alternate ratings of 115 hp 86 kW at 2700 rpm 112 hp 84 kW at 2600 rpm 110 hp 82 kW at 2550 rpm and 105 hp 78 kW at 2400 rpm dry weight 252 lb 114 kg Similar to O 235 M1 except Slick 4200 series magnetos 2 O 235 N2A Power 116 hp 87 kW at 2800 rpm alternate ratings of 113 hp 84 kW at 2700 rpm 110 hp 82 kW at 2600 rpm 108 hp 81 kW at 2550 rpm and 103 hp 77 kW at 2400 rpm dry weight 252 lb 114 kg Similar to O 235 L2A except reduced compression ratio and reduced power ratings 2 O 235 N2C Power 116 hp 87 kW at 2800 rpm alternate ratings of 113 hp 84 kW at 2700 rpm 110 hp 82 kW at 2600 rpm 108 hp 81 kW at 2550 rpm and 103 hp 77 kW at 2400 rpm dry weight 249 lb 113 kg Similar to O 235 L2C except reduced compression ratio and reduced power ratings 2 O 235 P1 Power 116 hp 87 kW at 2800 rpm alternate ratings of 113 hp 84 kW at 2700 rpm 110 hp 82 kW at 2600 rpm 108 hp 81 kW at 2550 rpm and 103 hp 77 kW at 2400 rpm dry weight 255 lb 116 kg Similar to O 235 M1 except reduced compression ratio and reduced power ratings 2 O 235 P2A Power 116 hp 87 kW at 2800 rpm alternate ratings of 113 hp 84 kW at 2700 rpm 110 hp 82 kW at 2600 rpm 108 hp 81 kW at 2550 rpm and 103 hp 77 kW at 2400 rpm dry weight 255 lb 116 kg Similar to O 235 P1 except a Type 1 propeller flange 2 O 235 P2C Power 116 hp 87 kW at 2800 rpm alternate ratings of 113 hp 84 kW at 2700 rpm 110 hp 82 kW at 2600 rpm 108 hp 81 kW at 2550 rpm and 103 hp 77 kW at 2400 rpm dry weight 252 lb 114 kg Similar to O 235 M2 except reduced compression ratio and reduced power ratings 2 O 235 P3C Power 116 hp 87 kW at 2800 rpm alternate ratings of 113 hp 84 kW at 2700 rpm 110 hp 82 kW at 2600 rpm 108 hp 81 kW at 2550 rpm and 103 hp 77 kW at 2400 rpm dry weight 252 lb 114 kg Similar to O 235 M3C except reduced compression ratio and reduced power ratings 2 Applications EditAero Boero AB 115 AMD Alarus ARV Griffin AESL Airtourer Beechcraft Model 77 Skipper Bushcaddy R 120 CEA DR 221 Cessna 152 Criquet Storch Falconar F11 Sporty Fisher Celebrity Grob G 115 Grumman American AA 1 Kelly D Lucas L 6A Lucas L 6B Lucas L7 Murphy Elite Murphy Rebel Nexaer LS1 Piel Emeraude Pena Joker Piper PA 12 Super Cruiser Piper PA 16 Clipper Piper PA 18 Super Cub Piper PA 22 108 Colt Piper PA 29 Papoose Piper PA 38 Tomahawk Preceptor STOL King Robin DR 221 Dauphin Robin R3000 Rutan Long EZ Socata Rallye 110ST Smith Miniplane Stern ST 87 Vega Storm Sea Storm Tri R KIS TR 1 Van s Aircraft RV 9 W A R Focke Wulf 190Specifications O 235 C2C EditData from Operator s Manual Textron Lycoming Aircraft Engines 1 General characteristics Type 4 cylinder air cooled horizontally opposed piston aircraft engine Bore 4 375 inches 111 1 mm Stroke 3 875 inches 98 4 mm Displacement 233 3 in3 3 823 L Dry weight 240 0 lb 108 9 kg Components Valvetrain Pushrod actuated valves Fuel system Carburetor Fuel type 80 87 avgas Cooling system Air cooledPerformance Power output 100 hp 75 kW at 2 400 rpm Specific power 0 57 hp in 26 0 kW L Compression ratio 6 5 1See also EditComparable engines Franklin O 235Related lists List of aircraft enginesReferences Edit a b Textron Lycoming Operator s Manual Textron Lycoming Aircraft Engines Series O 235 amp O 290 4th Edition January 1988 Pages 2 1 amp 2 4 Stock 60297 9 Textron Lycoming a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al Federal Aviation Administration December 2003 TYPE CERTIFICATE DATA SHEET NO E 223 PDF Retrieved 2008 11 30 Lycoming Engines July 2008 Lycoming Engines Launches the IO 233 LSA Archived from the original on 2010 11 26 Retrieved 2009 04 03 External links Edit Wikimedia Commons has media related to Lycoming O 235 Lycoming 235 Series Manufacturer s home page Retrieved from https en wikipedia org w index php title Lycoming O 235 amp oldid 1117170127, wikipedia, wiki, book, books, library,

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