Knowledge (XXG)

Lycoming IO-233

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in place of the throttle body injector to save further cost and weight. The engine has a 2400-hour time between overhauls. Additional features include a lightweight 14 volt alternator, an optimized oil sump, a streamlined accessory housing, a lightweight starter and roller tappets.
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by company engineers who were building their own kit LSAs and found that there was no powerplant that met their requirements for power output and weight, with the ability to burn either
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is a non-certified four-cylinder, air-cooled, horizontally opposed piston aircraft engine that produces between 100 hp (75 kW) and 116 hp (87 kW).
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testing for LSA use was completed. The company also contemplated certifying the engine in 2009. There is no indication that certification has been completed.
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version of the IO-233-LSA engine to be designated as the AEIO-233. The design goals include fuel injection, an inverted sump and that it be capable of +9/-3
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At AirVenture 2011, the company announced that the engine was commencing volume production and was flying in both fuel-injected and carbureted versions.
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This article is about the 2008 fuel-injected aircraft engine. For the 1940 carbureted aircraft engine, see
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When announced in July 2008 Lycoming expected the engine to be available later that year, once
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100 hp (75 kW) at 2400 rpm, 116 hp (87 kW) at 2800 rpm
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was the first airplane to fly with Lycoming's new IO-233-LSA engine on 6 Oct 2010.
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system with a tuned intake manifold and dual electronic ignition, or optionally a
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The resulting engine weighs less than the O-235 and incorporates a
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Renegade Light Sport is working with Lycoming to produce an
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Initial version, 100 hp (75 kW) at 2400 
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200 lb (91 kg) to 210 lb (95 kg)
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direct drive, four-cylinder, aircraft piston engine
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E-223" 478: 476: 474: 472: 468: 580:"Video: Lycoming's O-233 Takes Flight" 539: 537: 535: 33: 7: 167:on 28 July 2008 as a new engine for 1756:US military gas turbine aeroengines 690:Spec sheet showing images of IO-233 139:The IO-233 is a development of the 25: 456:0.50 hp/lb (0.82 kW/kg) 42: 513:Federal Aviation Administration 578:Bertorelli, Paul (July 2011). 350:20.571 in (522.5 mm) 344:31.928 in (811.0 mm) 338:26.968 in (685.0 mm) 1: 1782:2000s aircraft piston engines 653:Renegade Light Sport (2011). 314:4.375 in (111.1 mm) 1761:Piston engine configurations 432:0.43 hp/in³ (19.6 kW/L) 323:3.875 in (98.4 mm) 293:Lycoming Specification Sheet 286:Specifications (IO-233-LSA) 1808: 686:- Manufacturer's home page 26: 1792:Lycoming aircraft engines 1743: 50: 41: 36: 250:Aeris Naviter AN-2 Enara 1727:W-configuration inline) 1056:H-configuration inline) 1044:piston aircraft engine 956:Aero-derivative marine 874:Aircraft diesel engines 447:5.25 USgal/h (19.9 L/h) 376:Pushrod-actuated valves 297:General characteristics 208:Renegade Light Sport's 1707:VG (inverted-V inline) 1132:L (single-bank inline) 1104:IV (inverted-V inline) 1042:United States military 737:Opposed piston engines 384:throttle body injector 188:throttle body injector 160: 1684:V (inverted-V inline) 634:General Aviation News 452:Power-to-weight ratio 280:World Aircraft Spirit 158: 1606:V (upright-V inline) 605:"Renegade Falcon LS" 169:light sport aircraft 981:Pratt & Whitney 255:Dakota Cub Super 18 1046:designation system 661:on 3 December 2011 332:233.3 in³ (3.82 L) 270:Renegade Falcon LS 265:Foxcon Terrier 200 161: 100:Major applications 1769: 1768: 1008: 1007: 975:Joint development 788: 515:(December 2003). 445:Fuel consumption: 437:Compression ratio 130: 129: 105:Tecnam P92 Eaglet 16:(Redirected from 1799: 1035: 1028: 1021: 1012: 979:Avco (Lycoming)/ 782: 729:aircraft engines 719: 712: 705: 696: 684:Textron Lycoming 671: 670: 668: 666: 657:. Archived from 655:"Engine Options" 650: 644: 643: 641: 640: 626: 620: 619: 617: 616: 607:. Archived from 601: 595: 594: 592: 590: 575: 562: 561: 559: 558: 553: 549:"The IO-233-LSA" 545:Lycoming Engines 541: 530: 529: 527: 526: 521: 509: 503: 502: 500: 499: 490:. 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866: 861: 856: 850: 848: 842:Radial engines 838: 837: 835: 834: 829: 824: 819: 814: 809: 804: 799: 794: 789: 785:O-360 variants 777: 772: 767: 762: 757: 752: 747: 741: 739: 733: 732: 724: 722: 721: 714: 707: 699: 693: 692: 687: 679: 678:External links 676: 673: 672: 645: 621: 596: 563: 531: 504: 467: 466: 464: 461: 458: 457: 448: 442: 433: 428:Specific power 424: 416: 413: 412: 411: 405: 399: 386: 378: 365: 362: 361: 360: 351: 345: 339: 333: 324: 315: 306: 298: 295: 287: 284: 283: 282: 277: 272: 267: 262: 257: 252: 245: 242: 241: 240: 233: 228: 225: 173:Lycoming O-235 152: 149: 145:Lycoming O-233 141:Lycoming O-235 128: 127: 125:Lycoming O-235 122: 120:Developed from 116: 115: 112: 108: 107: 102: 96: 95: 92: 88: 87: 82: 78: 77: 72: 66: 65: 57: 53: 52: 48: 47: 39: 38: 29:Lycoming O-233 24: 14: 13: 10: 9: 6: 4: 3: 2: 1804: 1793: 1790: 1788: 1787:Boxer engines 1785: 1783: 1780: 1779: 1777: 1762: 1759: 1757: 1754: 1752: 1749: 1746: 1745: 1742: 1736: 1733: 1732: 1730: 1728: 1722: 1716: 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Retrieved 659:the original 648: 637:. Retrieved 633: 624: 613:. Retrieved 609:the original 599: 587:. Retrieved 583: 555:. Retrieved 523:. Retrieved 507: 496:. Retrieved 492:the original 459: 450: 444: 435: 426: 420: 407: 401: 388: 381:Fuel system: 380: 369: 353: 347: 341: 335: 328:Displacement 326: 317: 308: 302: 290: 289: 244:Applications 214: 207: 204: 197: 185: 179:or unleaded 162: 138: 133: 131: 1185:O (opposed) 924:Turboshafts 665:21 November 415:Performance 402:Oil system: 177:100LL avgas 151:Development 63:aero-engine 1776:Categories 1697:V-1650 (L) 1659:V-1650 (P) 1381:R-370 (LB) 1358:R (radial) 920:Turboprops 639:2011-11-23 615:2011-11-23 557:2009-04-04 525:2008-11-30 498:2009-04-03 463:References 410:air-cooled 389:Fuel type: 371:Valvetrain 364:Components 355:Dry weight 275:Tecnam P92 232:IO-233-LSA 192:carburetor 165:AirVenture 91:First run 1748:See also: 1411:R-540 (K) 1406:R-540 (W) 1386:R-370 (K) 1328:O-540 (L) 1323:O-540 (F) 1288:O-360 (L) 1283:O-360 (C) 1253:O-200 (F) 1248:O-200 (C) 892:Turbofans 846:H engines 291:Data from 217:aerobatic 210:Falcon LS 111:Produced 993:See also 985:T800-APW 726:Lycoming 404:dry sump 397:autofuel 227:Variants 147:engine. 1715:VG-1410 1596:XR-7755 1122:IV-2220 1117:IV-2040 1112:IV-1430 1089:XH-3730 1084:XH-3130 1079:XH-2600 1074:XH-2470 1069:XH-2240 932:AGT1500 882:DEL-120 864:XH-2470 859:XR-7755 817:GSO-580 812:TIO-541 589:27 July 348:Height: 336:Length: 37:IO-233 1751:X-1800 1735:W-2779 1674:V-3420 1669:V-1950 1664:V-1710 1654:V-1570 1649:V-1560 1644:V-1510 1639:V-1460 1634:V-1440 1629:V-1400 1624:V-1237 1619:V-1150 1591:R-4360 1586:R-4090 1581:R-3350 1576:R-2800 1571:R-2600 1566:R-2180 1561:R-2160 1556:R-2060 1551:R-2000 1546:R-1860 1541:R-1830 1536:R-1820 1531:R-1750 1526:R-1690 1521:R-1670 1516:R-1640 1511:R-1535 1506:R-1510 1501:R-1454 1496:R-1340 1491:R-1300 1486:R-1044 1476:DR-980 1348:O-1230 1094:H-4070 1064:H-1640 910:LF 507 832:O-1230 827:IO-720 822:IO-580 792:IO-390 755:IO-233 391:100LL 342:Width: 319:Stroke 60:Piston 1692:V-770 1614:V-720 1481:R-985 1471:R-975 1466:R-915 1461:R-830 1456:R-790 1451:R-760 1446:R-755 1441:R-720 1436:R-680 1431:R-670 1426:R-600 1421:R-550 1416:R-545 1401:R-500 1396:R-440 1391:R-420 1376:R-270 1371:R-265 1366:R-250 1343:O-805 1338:O-580 1333:O-550 1318:O-520 1313:O-480 1308:O-470 1303:O-435 1298:O-425 1293:O-405 1278:O-335 1273:O-300 1268:O-290 1263:O-235 1258:O-205 1243:O-190 1238:O-180 1233:O-175 1228:O-170 1223:O-150 1218:O-145 1213:O-100 1175:L-825 1170:L-510 1165:L-440 1160:L-410 1155:L-390 1150:L-375 1145:L-365 1140:L-330 966:TF-40 854:R-680 807:O-540 802:O-480 797:O-435 780:O-360 775:O-340 770:O-320 765:O-290 760:O-235 750:O-233 745:O-145 584:AVweb 552:(PDF) 520:(PDF) 441:8.1:1 393:avgas 303:Type: 94:2008 56:Type 1208:O-90 1203:O-45 1198:O-40 1193:O-15 900:PLF1 844:and 667:2011 591:2011 310:Bore 223:. 200:ASTM 132:The 947:T55 942:T53 395:or 237:rpm 1778:: 983:: 632:. 582:. 566:^ 534:^ 471:^ 221:Gs 183:. 1034:e 1027:t 1020:v 922:/ 787:) 783:( 718:e 711:t 704:v 669:. 642:. 618:. 593:. 560:. 528:. 501:. 454:: 439:: 430:: 373:: 357:: 330:: 321:: 312:: 31:. 20:)

Index

Lycoming YO-233
Lycoming O-233

Piston
aero-engine
United States
Lycoming Engines
Tecnam P92 Eaglet
Lycoming O-235
Lycoming O-235
Lycoming O-233

AirVenture
light sport aircraft
Lycoming O-235
100LL avgas
automotive fuel
throttle body injector
carburetor
ASTM
Falcon LS
aerobatic
Gs
rpm
Aeris Naviter AN-2 Enara
Dakota Cub Super 18
Denney Kitfox
Foxcon Terrier 200
Renegade Falcon LS
Tecnam P92

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