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Schweizer SGU 1-19

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In 1946 the company experimented with a motorglider conversion of the 1-19. This was attempted because the company had acquired a used Andover engine that produced 12 horsepower (9 kW) at 4000 rpm. A 1-19 was modified by bolting the engine in pusher configuration over the wing/fuselage junction.
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Once the war had ended the availability of cheap military surplus gliders severely limited the market for sales of new gliders. By the summer of 1948 it was obvious that the boom was not going to occur and this left manufacturers with surplus inventory of powered light aircraft and, in the case of
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During one flight Schweizer test pilot Frank Hurtt was able to find a thermal at ten feet and climbed the aircraft up to 2,000 feet (610 m). Other than one flight where the aircraft was auto-towed with the engine running at full throttle, this was the only time that the altitude achieved
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Construction of the constant chord 1-19 wing was of wood and fabric. It utilized a two spar, double strutted design. The fuselage and tail were made from welded tube covered with aircraft fabric. The 1-19 was originally produced with an open cockpit, but in service most were modified with the
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With production of the SGS 2-8 and SGS 2-12 military training gliders complete in 1944, Schweizer Aircraft did studies of a series of utility and sailplane designs, trying to determine what would best suit the post-war market. Design studies conducted in this period included:
265:. The additional wingspan brought the glide ratio up to 18.5:1 from the 1-19's 16:1. A single factory-built 1-20 was completed, NX-91840. Two additional 1-20's were created by private owners who converted their 1-19 by replacing their stock wings with the longer wing. 185:
Many economic forecasts had predicted a post war aviation boom, with thousands of military trained airmen returning home to the US to fly civil aircraft. Like many aircraft manufacturers Schweizer planned to produce new aircraft for the boom.
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Distance flying in the 1-19 is challenging, given its 16:1 glide ratio and red-line speed limit of just 75 mph (122 km/h). Jim Hard flew an SGU 1-19 190 miles (308 km) to qualify for a Gold distance and Diamond goal flight.
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Designer Ernest Schweizer quickly identified a need for a version of the 1-19 with better performance and designed a new set of wings for it. The new aircraft, with an additional seven feet of span, was designated the
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The 1-20 was never certified in the US and these aircraft are flown there as experimental aircraft. The SGU 1-20 was issued Canadian type certificate G-53 1960-10-27 in the name of Cu Nim Gliding Club of Calgary.
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addition of canopies. The 1-19 is very light, with an empty weight of just 320 lb (150 kg), but it is complex to assemble and disassemble as this requires use of many small pins.
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The resulting aircraft displayed disappointing performance. The combination of the low-performance 1-19 and the low-power engine left the aircraft unable to climb out of
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In May 2008 there were still 25 SGU 1-19s registered in the USA along with one 1-19A and three 1-20s, the factory prototype (serial number 1), and two converted 1-19s.
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SGU 1-19s assembled from factory kits were accepted as certified aircraft and were designated as SGU 1-19A. They were otherwise identical to the 1-19.
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The 1-20 is the long winged version of the 1-19. One 1-20 was completed and a number of 1-19s were converted to 1-20s by installing longer wings.
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The 1-19 first flew in 1944 and was quickly ordered by Schweizer's 15 US dealers in large numbers for use as a trainer. Fifty were completed.
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The 1-20 was an improved version of the 1-19 with a wingspan of 43 feet (13 m) replacing the 36-foot (11 m) wing on the 1-19.
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and temporarily designated it as the SGM 1-19 ("M" for "motor"). The project was not a success and the aircraft was de-modified.
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After complaints were received from the airport manager, the 1-19 was converted back to a glider and the project terminated.
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training gliders for the US military as well as producing many aircraft parts under subcontract for the war effort. As the
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The 1-19 received type certificate G-17 on 19 June 1946. The type certificate is currently held by K & L Soaring of
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and bears a strong resemblance to the earlier craft. It was designed for single place training and soaring flights.
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Schweizer Aircraft decided to concentrate on two designs, both based on the utility glider layout of the
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was drawing to a close the company decided to continue to make gliding part of their business plan.
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The wings were made available as kits and a number of 1-19s were converted to 1-20s.
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None of these designs proceeded to the stage of constructing a prototype.
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The basic factory produced model was designated as the SGU 1-19.
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The company finally produced a successful motorglider with the
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Wings Like Eagles, The Story of Soaring in the United States
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Wings Like Eagles, The Story of Soaring in the United States
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The installation was completed with a home-made propeller.
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The prototype 1-20 was soared 138 miles (222 km) by
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The factory converted one SGU 1-19 to a self-launching
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G-17" 382: 1042: 803: 801: 799: 797: 1013:Jane's all the World's Aircraft 1947 409:Jane's all the World's Aircraft 1947 170:Schweizer Aircraft had produced the 963: 937: 24: 794: 435:36 ft 9 in (11.2 m) 25: 1432: 1022: 441:10 ft 6 in (3.2 m) 429:20 ft 8 in (6.3 m) 271: 689:Smithsonian Institution (2004). 301: 284:. It had a ceiling of ten feet. 40: 1011:Bridgman, Leonard, ed. (1947). 920:Federal Aviation Administration 912: 895:Federal Aviation Administration 887: 862: 809:Federal Aviation Administration 521:179 ft/min (0.91 m/s) 447:170 sq ft (16 m) 1411:1940s United States sailplanes 972:"Sailplanes in Our Collection" 193: 85:Schweizer Aircraft Corporation 13: 1: 548: 374: 165: 1421:Aircraft first flown in 1944 7: 531: 317: 10: 1437: 833:K & L Soaring (n.d.). 359:Competitions & Records 49:Schweizer SGU 1-20 at the 29:American family of gliders 1372: 1356: 1330: 1299: 1283: 1262: 1076: 479:550 lb (249 kg) 473:320 lb (145 kg) 48: 39: 34: 1390:William (Bill) Schweizer 1077:Sailplanes & Gliders 835:"K & L Soaring, LLC" 691:"Directory of Airplanes" 1331:Reconnaissance Aircraft 774:Activate Media (2006). 718:Activate Media (2006). 651:Activate Media (2006). 414:General characteristics 395:National Soaring Museum 255: 243: 35:SGU 1-19 and SGU 1-20 1263:Agricultural Aircraft 402:Specifications (1-19) 996:: CS1 maint: year ( 872:(October 27, 1960). 854:: CS1 maint: year ( 776:"SGM 2-37 Schweizer" 720:"SGU 1-20 Schweizer" 653:"SGU 1-19 Schweizer" 513:Maximum glide ratio: 389:Iowa Aviation Museum 190:Schweizer, gliders. 51:Iowa Aviation Museum 1284:Amphibious Aircraft 970:Munson, J. (n.d.). 753:Schweizer, Paul A: 621:Schweizer, Paul A: 383:Aircraft on display 288:exceeded ten feet. 236:, both designed by 1416:Schweizer aircraft 1070:Schweizer Aircraft 945:"Vintage Aircraft" 811:(September 2007). 659:on August 25, 2002 505:Never exceed speed 498:Aerotow max speed: 296:Schweizer SGM 2-37 146:Schweizer Aircraft 126:Schweizer SGU 1-20 122:Schweizer SGU 1-19 1398: 1397: 1348:RU-38 Twin Condor 1034:SGU 1-20 Homepage 782:on August 8, 2007 726:on August 8, 2007 369:Paul A. Schweizer 230:Schweizer SGU 1-7 118: 117: 16:(Redirected from 1428: 1385:Paul A Schweizer 1380:Ernest Schweizer 1063: 1056: 1049: 1040: 1039: 1017: 1016: 1008: 1002: 1001: 995: 987: 985: 983: 974:. Archived from 967: 961: 960: 958: 956: 951:on April 9, 2011 947:. Archived from 941: 935: 934: 932: 930: 916: 910: 909: 907: 905: 891: 885: 884: 882: 880: 870:Transport Canada 866: 860: 859: 853: 845: 843: 841: 830: 824: 823: 821: 819: 805: 792: 791: 789: 787: 778:. 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Archived from 648: 633: 619: 598: 591: 487: 416: 308:Cayuta, New York 238:Ernest Schweizer 180:Second World War 150:Elmira, New York 128:are a family of 111: 95:Ernest Schweizer 73: 65:Type of aircraft 44: 32: 31: 21: 1436: 1435: 1431: 1430: 1429: 1427: 1426: 1425: 1401: 1400: 1399: 1394: 1368: 1364:MQ-8 Fire Scout 1352: 1326: 1295: 1279: 1258: 1072: 1067: 1025: 1020: 1009: 1005: 989: 988: 981: 979: 978:on May 16, 2011 968: 964: 954: 952: 943: 942: 938: 928: 926: 917: 913: 903: 901: 892: 888: 878: 876: 867: 863: 847: 846: 839: 837: 831: 827: 817: 815: 806: 795: 785: 783: 772: 768: 752: 739: 729: 727: 716: 705: 695: 693: 687: 672: 662: 660: 649: 636: 620: 601: 592: 555: 551: 543:List of gliders 534: 483: 412: 404: 385: 377: 361: 320: 304: 274: 258: 246: 196: 168: 109: 72:National origin 71: 66: 30: 23: 22: 15: 12: 11: 5: 1434: 1424: 1423: 1418: 1413: 1396: 1395: 1393: 1392: 1387: 1382: 1376: 1374: 1370: 1369: 1367: 1366: 1360: 1358: 1354: 1353: 1351: 1350: 1345: 1340: 1334: 1332: 1328: 1327: 1325: 1324: 1319: 1314: 1309: 1303: 1301: 1297: 1296: 1294: 1293: 1287: 1285: 1281: 1280: 1278: 1277: 1275:Ag Cat Super B 1272: 1266: 1264: 1260: 1259: 1257: 1256: 1251: 1246: 1241: 1236: 1231: 1226: 1221: 1216: 1211: 1206: 1201: 1196: 1191: 1186: 1181: 1176: 1171: 1166: 1161: 1156: 1151: 1146: 1141: 1136: 1131: 1126: 1121: 1116: 1111: 1106: 1101: 1096: 1091: 1086: 1080: 1078: 1074: 1073: 1066: 1065: 1058: 1051: 1043: 1037: 1036: 1031: 1029:SGU 1-19 photo 1024: 1023:External links 1021: 1019: 1018: 1003: 962: 936: 924:"FAA Registry" 911: 899:"FAA Registry" 886: 861: 825: 793: 766: 737: 703: 670: 634: 599: 552: 550: 547: 546: 545: 533: 530: 529: 528: 522: 516: 510: 501: 495: 481: 480: 474: 468: 457: 448: 442: 436: 430: 424: 403: 400: 399: 398: 392: 384: 381: 376: 373: 360: 357: 356: 355: 352: 348: 347: 340: 336: 335: 332: 328: 327: 324: 319: 316: 303: 300: 273: 272:Motorized 1-19 270: 257: 254: 245: 242: 223: 222: 215: 208: 207:utility glider 195: 192: 167: 164: 116: 115: 112: 106: 105: 102: 98: 97: 92: 88: 87: 82: 78: 77: 76:United States 74: 68: 67: 64: 58: 54: 53: 46: 45: 37: 36: 28: 18:Schweizer 1-20 9: 6: 4: 3: 2: 1433: 1422: 1419: 1417: 1414: 1412: 1409: 1408: 1406: 1391: 1388: 1386: 1383: 1381: 1378: 1377: 1375: 1371: 1365: 1362: 1361: 1359: 1355: 1349: 1346: 1344: 1341: 1339: 1336: 1335: 1333: 1329: 1323: 1320: 1318: 1315: 1313: 1310: 1308: 1305: 1304: 1302: 1298: 1292: 1289: 1288: 1286: 1282: 1276: 1273: 1271: 1268: 1267: 1265: 1261: 1255: 1252: 1250: 1247: 1245: 1242: 1240: 1237: 1235: 1232: 1230: 1227: 1225: 1222: 1220: 1217: 1215: 1212: 1210: 1207: 1205: 1202: 1200: 1197: 1195: 1192: 1190: 1187: 1185: 1182: 1180: 1177: 1175: 1172: 1170: 1167: 1165: 1162: 1160: 1157: 1155: 1152: 1150: 1147: 1145: 1142: 1140: 1137: 1135: 1132: 1130: 1127: 1125: 1122: 1120: 1117: 1115: 1112: 1110: 1107: 1105: 1102: 1100: 1097: 1095: 1092: 1090: 1087: 1085: 1082: 1081: 1079: 1075: 1071: 1064: 1059: 1057: 1052: 1050: 1045: 1044: 1041: 1035: 1032: 1030: 1027: 1026: 1014: 1007: 999: 993: 977: 973: 966: 950: 946: 940: 925: 921: 915: 900: 896: 890: 875: 871: 865: 857: 851: 836: 829: 814: 810: 804: 802: 800: 798: 781: 777: 770: 764: 763:0-87474-828-3 760: 756: 750: 748: 746: 744: 742: 725: 721: 714: 712: 710: 708: 692: 685: 683: 681: 679: 677: 675: 658: 654: 647: 645: 643: 641: 639: 632: 631:0-87474-828-3 628: 624: 618: 616: 614: 612: 610: 608: 606: 604: 596: 590: 588: 586: 584: 582: 580: 578: 576: 574: 572: 570: 568: 566: 564: 562: 560: 558: 553: 544: 541: 540: 539: 538: 537:Related lists 526: 525:Wing loading: 523: 520: 519:Rate of sink: 517: 514: 511: 508: 506: 502: 499: 496: 493: 490: 489: 488: 486: 478: 477:Gross weight: 475: 472: 471:Empty weight: 469: 467: 464: 462: 458: 455: 453: 449: 446: 443: 440: 437: 434: 431: 428: 425: 422: 419: 418: 417: 415: 410: 408: 396: 393: 390: 387: 386: 380: 372: 370: 365: 353: 350: 349: 345: 341: 338: 337: 333: 330: 329: 325: 322: 321: 315: 311: 309: 302:Certification 299: 297: 292: 289: 285: 283: 282:ground effect 278: 269: 266: 264: 253: 249: 241: 239: 235: 231: 226: 220: 216: 213: 210:Single-place 209: 206: 203:Single-place 202: 201: 200: 191: 187: 183: 181: 177: 173: 163: 160: 158: 153: 151: 147: 143: 139: 135: 132:single-seat, 131: 130:United States 127: 123: 113: 108: 107: 103: 101:First flight 100: 99: 96: 93: 90: 89: 86: 83: 81:Manufacturer 80: 79: 75: 70: 69: 62: 59: 56: 55: 52: 47: 43: 38: 33: 27: 19: 1254:X-26 Frigate 1158: 1153: 1148: 1143: 1138: 1012: 1006: 980:. 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Index

Schweizer 1-20

Iowa Aviation Museum
Open-class
Schweizer Aircraft Corporation
Ernest Schweizer
United States
high-wing
strut-braced
gliders
Schweizer Aircraft
Elmira, New York
SGU 1-7
SGS 2-8
SGS 2-12
Second World War
Schweizer SGU 1-7
SGU 2-22
Ernest Schweizer
ground effect
Schweizer SGM 2-37
Cayuta, New York
motorglider
Paul A. Schweizer
Iowa Aviation Museum
National Soaring Museum
Aspect ratio
Airfoil
NACA 43012A
Never exceed speed

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