Knowledge (XXG)

LET L-13 Blaník

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The L-13 AC is primarily intended for aerobatic training with a wider flight envelope enabling dual training up to intermediate-level. It combines the wings and cockpit of the L-23 Super Blaník with the single-piece canopy and conventional empennage of the L-13. This model is considered stronger and
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A Blaník L-13 (not an L-13AC, which has a different wing and type certificate) was involved in a fatal accident in Austria on 12 June 2010, when a wing spar failed at height, leading to separation of the wing and loss of control of the aircraft. A newspaper reported the cause of the failure as
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and was exported in large numbers to Western Europe and North America. Total production was in excess of 2650, or more than 3000 if variants are included. More than half a century after its first flight it is still the most common glider in the world.
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wing profiles. The L-13 was developed as a practical glider suitable for basic flight instruction, aerobatic instruction and cross-country training. This design concept was combined with true and tested technology: metal construction,
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The main single-wheel landing gear is sprung with an oleo-pneumatic shock absorber. When retracted, it still protrudes enough outside so there is little or no damage even if the wheel is accidentally left in the raised position for
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The Blanik has been owned and operated by individuals and gliding schools around the world. Some individuals club together to form syndicates to operate the aircraft. A small number have been operated by the military.
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aerobatic training in the Blaník was done in solo flight with the instructor on the ground or in another aircraft. A manufacturer airworthiness directive in June 2010 asserted a prohibition against
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Trapezoidal single-taper wings with forward (negative) sweep, single-spar, all-metal construction. Metal ‘salmon’ tips. Flaps and ailerons have a metal frame and are covered in fabric. Metal
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students towards solo flight, namely: slow landing speed, ample control deflections and an effective rudder. These are in effect typical of wood-and-fabric primary trainers such as the
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The Blaník entered production in 1958 and quickly gained popularity as an inexpensive, rugged and durable type, which was easy to fly and operate. It was widely adopted in the
1188:(in English, French, and German) (1st ed.). Zurich: Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. pp. 34–36. 1160:(in English, French, and German) (1st ed.). Zurich: Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. pp. 58–59. 2050: 1430: 1017: 2082: 307:
The Blaník was originally stressed for simple aerobatics, including inverted flight where the aircraft has a single occupant. As a result of this latter requirement,
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Touring motorglider derivative. The wings, fuselage and tail surfaces of the L-13 are mated to a cockpit featuring side-by-side seats and a conventional
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different enough from a conventional L-13, L-13/AC uses a shorter L-23 wing and is not affected by 2010 spar issues of the L-13.
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The Blaník achieved many two-seater world distance records during the 1960s. The Blaník inspired other designs, notably the
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excessive stress during a manoeuvre. However, the preliminary investigation revealed that the fracture may have been due to
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The effectiveness of the Blaník as a primary trainer is due to a blend of characteristics that facilitate progress of
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62 km/h (39 mph, 33 kn) (flaps 0°), 56 km/h (35 mph; 30 kn) (flaps 10°)
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single-seaters developed to equip the Czechoslovak team in the 1956 and 1958 World Championships.
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The horizontal tail surfaces fold up parallel to the fin for transportation and storage.
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Flaps deployed for landing - torpedo tips clearly visible, and air brakes partially open
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An L-13 is on display at Atomic Motors Classic Cars and Motorcycles in Henderson, NV
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The World's Sailplanes: Die Segelflugzeuge der Welt: Les Planeurs du Monde Volume II
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TJ-100C with take-off thrust 1,0 kN from První brněnská strojírna Velká Bíteš.
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The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II
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The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II
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construction employing longerons and bulkheads, with an ovoid cross-section. The
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An L-13 is on display at the Propeller Cafe at Chofu Airport in Tokyo, Japan
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since 1956. It is the most numerous and widely used glider in the world. In
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0.84 m/s (165 ft/min) at 83 km/h (52 mph; 45 kn)
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An L-13 is on display at the Aviation History and Technology Center in
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engine permanently mounted on a pylon above the rear fuselage.
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with full airbrakes 258 km/h (160 mph; 139 kn)
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laminar profiles and many standard-issue components of the
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The elevator and rudder are metal frames covered in fabric.
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are not included unless the designations were modified.
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c. 1956, building upon the experience gained with the
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Wilkinson (1963). 993:German-language news article on the crash 41:Penn State Soaring Club L-13 flying over 1156:Shenstone, B.S.; K.G. Wilkinson (1963). 1125:Aviation History & Technology Center 1018:"Letter, FAA to SSA, September 14, 2010" 369:A twin-fuselage Blaník was developed by 951: 881:26.1 kg/m (5.3 lb/sq ft) 851:100 km/h (62 mph; 54 kn) 845:140 km/h (87 mph; 76 kn) 839:145 km/h (90 mph; 78 kn) 957: 955: 388:once operated by the DFVLR (today the 377:as a flying laboratory for testing of 2094:liaison/utility aircraft designations 225:on the upper and lower wing surfaces. 7: 758:19.15 m (206.1 sq ft) 404:(OK-3801) single-seat experimental 256:, the first Czech glider to employ 802:292 kg (644 lb) equipped 752:16.2 m (53 ft 2 in) 558:two operated between 1998 and 2005 25: 963:"LET Mandatory Bulletin L13/109A" 746:8.4 m (27 ft 7 in) 537:10 operated between 1961 and 2020 892: 667: 648: 626: 605: 583: 564: 542: 517: 244:The L-13 Blaník was designed by 145:L-13A L-13AC L-13SW L-13B L-13TJ 35: 2049:Designations carried over from 661:United States Air Force Academy 535:Australian Defence Force Cadets 445:United States Air Force Academy 165:United States Air Force Academy 1: 2420:1960s Czechoslovak sailplanes 691:An L-13 is on display at the 2440:Aircraft first flown in 1956 2051:American designation systems 717:Specifications (L-13 Blaník) 2435:Forward-swept-wing aircraft 1145:http://www.atomicmotors.net 1075:"ADF Serials - Blanik L-13" 808:500 kg (1,102 lb) 211:is covered with a two-part 43:State College, Pennsylvania 2456: 497:Aerotechnik L-13 SDL Vivat 487:Aerotechnik L-13 SDM Vivat 482:Aerotechnik L 13 SEH Vivat 167:service, it is designated 2393: 2047: 1227:Website of Blanik America 492:Aerotechnik L 13 SL Vivat 477:Aerotechnik L-13 SW Vivat 472:Aerotechnik L-13 SE Vivat 267:Soviet aerospace industry 34: 1376:US military designations 531:Australian Defence Force 155:is a two-seater trainer 1852:Search & rescue (S) 1193:Simons, Martin (2005). 1177:Letectví a Kosmonautica 731:General characteristics 396:) for the same purpose. 394:German Aerospace Center 362:Sportinė Aviacija SL-2P 1079:www.adf-serials.com.au 452:Aerotechnik L-13 Vivat 421: 319:2010 main-spar failure 315:aerobatic manoeuvres. 199: 184: 1442:aircraft designations 663:from 2002 until 2012. 419: 254:Letov XLF-207 Laminar 190: 182: 2092:Spanish Armed Forces 1195:Sailplanes 1965–2000 1005:EASA EAD 2010-0160-E 867:Maximum glide ratio: 837:Rough air speed max: 1440:Brazilian Air Force 1280:Aircraft Industries 1240:Sailplane directory 1232:Photo of the SL-2P 907:Related development 849:Winch launch speed: 686:Aircraft on display 680:Uruguayan Air Force 461:Walter Mikron IIIAE 292:Operational history 54:General information 1826:Reconnaissance (R) 1289:Transport aircraft 855:Terminal velocity: 828:Never exceed speed 556:Estonian Air Force 511:Military operators 422: 420:L-13 B "Bačostroj" 309:intermediate level 200: 185: 47:forward-swept wing 2407: 2406: 2317: 2305: 2304: 2107: 2058: 2057: 1406: 1405: 1347:L-23 Super Blaník 1234:flying laboratory 1121:"LET L-13 Blanik" 913:L-23 Super Blanik 704:Marietta, Georgia 641:Spanish Air Force 577:Italian Air Force 447:, gliding school. 371:Sportinė Aviacija 351:auxiliary-powered 223:DFS type spoilers 149: 148: 16:(Redirected from 2447: 2400:No details known 2340: 2335: 2325: 2315: 2111: 2105: 2085: 2078: 2071: 2062: 1433: 1426: 1419: 1410: 1398:TG-10D Peregrine 1269: 1262: 1255: 1246: 1208: 1189: 1180: 1162: 1161: 1153: 1147: 1142: 1136: 1135: 1133: 1131: 1117: 1111: 1106: 1100: 1095: 1089: 1088: 1086: 1085: 1071: 1065: 1064: 1062: 1061: 1046: 1040: 1039: 1037: 1035: 1030:on March 3, 2016 1029: 1023:. 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1094: 1091: 1080: 1076: 1070: 1067: 1056:on 2011-07-18 1055: 1051: 1045: 1042: 1034:September 24, 1026: 1019: 1013: 1010: 1006: 1001: 998: 994: 989: 986: 975:on 2011-07-22 971: 964: 958: 956: 952: 945: 941: 938: 936: 933: 932: 931: 930: 929:Related lists 924: 921: 919: 916: 914: 911: 910: 909: 908: 901: 890: 885: 880: 879:Wing loading: 877: 874: 873:Rate of sink: 871: 868: 865: 862: 859: 856: 853: 850: 847: 844: 841: 838: 835: 831: 829: 825: 822: 819: 818: 817: 815: 807: 806:Gross weight: 804: 801: 800:Empty weight: 798: 796: 789: 785: 778: 775: 773: 769: 766: 764: 760: 757: 754: 751: 748: 745: 742: 739: 736: 735: 734: 732: 727: 726: 723: 716: 711: 708: 705: 701: 698: 694: 690: 689: 685: 681: 678: 676: 665: 662: 659: 657: 656:United States 646: 645: 642: 639: 638: 635: 624: 623: 620: 617: 616: 615: 614: 599: 596: 595: 592: 581: 578: 575: 573: 562: 561: 557: 554: 553: 552: 551: 536: 532: 529: 528: 525: 520: 515: 514: 510: 508: 501: 496: 494: 491: 489: 486: 484: 481: 479: 476: 474: 471: 470: 466: 465:Limbach L2000 462: 458: 454: 451: 450: 446: 443: 440: 439: 435: 432: 431: 427: 424: 423: 418: 411: 407: 403: 400: 399: 395: 391: 387: 383: 380: 376: 372: 368: 364: 361: 360: 356: 352: 348: 345: 344: 339: 336: 335: 331: 329: 327: 326:metal fatigue 318: 316: 314: 310: 305: 303: 299: 291: 289: 287: 283: 278: 275: 270: 268: 264: 259: 255: 251: 247: 239: 233: 230: 227: 224: 220: 217: 214: 213:acrylic glass 210: 206: 202: 201: 198: 194: 189: 181: 174: 172: 170: 166: 162: 158: 154: 144: 141: 137: 133: 129: 125: 121: 116: 112: 108: 104: 100: 96: 92: 88: 85: 82: 80: 76: 72: 68: 64: 61: 57: 52: 48: 44: 38: 33: 28: 19: 2430:Let aircraft 2397:Not assigned 2373: 2310: 2114:First series 2100: 2018: 1758:Maritime (M) 1392: 1342:L-21 Spartak 1336: 1297:L-200 Morava 1276:Let Kunovice 1233: 1211: 1194: 1185: 1176: 1157: 1151: 1140: 1128:. Retrieved 1124: 1115: 1104: 1093: 1082:. Retrieved 1078: 1069: 1058:. Retrieved 1054:the original 1044: 1032:. Retrieved 1025:the original 1012: 1000: 988: 977:. Retrieved 970:the original 928: 927: 906: 905: 878: 872: 866: 860: 854: 848: 842: 836: 826: 821:Stall speed: 820: 813: 811: 805: 799: 787: 776: 770: 763:Aspect ratio 761: 755: 749: 743: 737: 730: 728: 724: 721: 720: 613:Soviet Union 603: 540: 505: 441:TG-10 Blanik 406:motor glider 389: 366: 350: 322: 312: 306: 297: 295: 286:L-21 Spartak 279: 271: 258:laminar flow 250:VZLÚ Letňany 246:Karel Dlouhý 243: 203:Fuselage of 168: 161:Let Kunovice 159:produced by 152: 150: 143:Blanik TG-10 131:First flight 123:Manufactured 110:Number built 95:Karel Dlouhý 84:Let Kunovice 79:Manufacturer 1941:Utility (U) 1868:Trainer (T) 1705:Liaison (L) 1621:Fighter (F) 1337:L-13 Blaník 1222:LET website 1130:23 February 814:Performance 274:Soviet bloc 240:Development 153:L-13 Blaník 30:L-13 Blaník 2414:Categories 2311:Utilitario 2007:Glider (Z) 1795:Patrol (P) 1448:Attack (A) 1169:References 1109:aeroflight 1098:aeroflight 1084:2021-01-03 1060:2009-12-04 979:2010-08-11 756:Wing area: 410:jet engine 45:, showing 2216:L.18 (II) 1526:C-35 (II) 1479:Cargo (C) 1352:L-33 Solo 923:LET TG-10 918:L-33 Solo 861:g limits: 750:Wingspan: 722:Data from 591:Lithuania 524:Australia 502:Operators 375:Lithuania 298:ab initio 126:1958–1978 65:sailplane 2211:L.18 (I) 2166:L.9 (II) 1521:C-35 (I) 1362:Orlík II 1307:L 410 NG 1282:aircraft 886:See also 457:firewall 382:airfoils 332:Variants 235:landing. 139:Variants 90:Designer 2324:U.1–U.8 2316:Utility 2161:L.9 (I) 2106:Liaison 1329:Gliders 791:NACA 65 780:NACA 65 772:Airfoil 744:Length: 675:Uruguay 550:Estonia 433:L-13 A1 401:L-13 TJ 379:laminar 209:cockpit 118:History 2101:Enlace 1653:F-2000 1367:VSB 66 1201:  697:Madrid 672:  653:  631:  610:  588:  569:  547:  346:L-13 J 302:ASK 13 282:Démant 216:canopy 197:Latvia 175:Design 169:TG-10C 157:glider 105:flying 102:Status 2359:UD.14 2349:UD.13 1684:VH-34 1648:F-103 1596:C-115 1591:C-105 1383:TG-10 1319:L-610 1312:L-420 1028:(PDF) 1021:(PDF) 973:(PDF) 966:(PDF) 946:Notes 795:A 612 784:A 615 777:Root: 738:Crew: 634:Spain 572:Italy 392:, or 386:Janus 2385:U.20 2381:U.19 2378:U.18 2374:U.17 2369:U.16 2364:U.15 2354:U.14 2344:U.12 2339:U.11 2334:U.10 2297:L.13 2292:L.12 2287:L.11 2282:L.10 2221:L.19 2206:L.17 2201:L.16 2196:L.15 2191:L.14 2186:L.13 2181:L.12 2176:L.11 2171:L.10 2039:Z-23 2034:Z-20 2029:Z-16 2024:Z-15 2019:Z-13 1998:U-93 1993:U-55 1988:U-45 1983:U-42 1978:U-37 1973:U-35 1968:U-19 1932:T-29 1927:T-27 1922:T-26 1917:T-25 1912:T-24 1900:T-23 1895:T-22 1890:T-21 1885:T-17 1859:S-16 1843:R-99 1838:R-95 1833:R-35 1817:P-99 1812:P-95 1807:P-16 1802:P-15 1765:M-16 1749:L-42 1744:L-20 1732:L-19 1696:H-55 1691:H-50 1679:H-34 1674:H-33 1643:F-39 1638:F-33 1612:E-99 1586:C-99 1581:C-98 1576:C-97 1571:C-96 1566:C-95 1561:C-93 1556:C-92 1551:C-91 1546:C-90 1541:C-55 1536:C-42 1531:C-41 1516:C-28 1511:C-26 1506:C-10 1470:A-29 1465:A-16 1460:A-10 1278:and 1199:ISBN 1132:2021 1036:2010 788:Tip: 767:13.7 365:aka 355:Jawa 284:and 263:NACA 193:Riga 151:The 134:1956 59:Type 2329:U.9 2313:(U) 2277:L.9 2272:L.8 2267:L.7 2262:L.6 2257:L.5 2252:L.4 2247:L.3 2242:L.2 2237:L.1 2156:L.8 2151:L.7 2146:L.6 2141:L.5 2136:L.4 2131:L.3 2126:L.2 2121:L.1 2103:(L) 2014:Z-3 1963:U-9 1958:U-8 1953:U-7 1948:U-3 1880:T-8 1875:T-7 1786:O-6 1781:O-3 1737:A/E 1727:L-8 1722:L-7 1717:L-6 1712:L-3 1669:H-4 1633:F-8 1628:F-7 1501:C-9 1496:C-8 1491:C-2 1486:C-1 1455:A-1 695:in 390:DLR 373:in 349:An 313:all 248:of 2416:: 1123:. 1077:. 954:^ 786:, 533:- 269:. 195:- 2084:e 2077:t 2070:v 1905:B 1432:e 1425:t 1418:v 1268:e 1261:t 1254:v 1207:. 1134:. 1087:. 1063:. 1038:. 1007:. 995:. 982:. 830:: 793:2 782:2 774:: 765:: 740:2 706:. 699:. 467:. 218:. 20:)

Index

LET L-13 Blanik

State College, Pennsylvania
forward-swept wing
Two Seater class
Manufacturer
Let Kunovice
Karel Dlouhý
Blanik TG-10
glider
Let Kunovice
United States Air Force Academy


Riga
Latvia
semi-monocoque
cockpit
acrylic glass
canopy
DFS type spoilers
Karel Dlouhý
VZLÚ Letňany
Letov XLF-207 Laminar
laminar flow
NACA
Soviet aerospace industry
Soviet bloc
Démant
L-21 Spartak

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