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Assisted take-off

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203:, is propelled down a long cylinder under steam pressure. The aircraft is attached to the shuttle using a tow bar or launch bar mounted to the nose landing gear (an older system used a steel cable called a catapult bridle; the forward ramps on older carrier bows were used to catch these cables), and is flung off the deck at about 15 knots above minimum flying speed, achieved by the catapult in a four-second run. 25: 319: 129: 184: 351:
Usually the rationale for such a system is to free the daughter craft from the need to climb to its release height under its own power. This allows the daughter craft to be designed with fewer weight and aerodynamic restrictions allowing for exotic configurations to be used or tested, for example the
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In the interwar years, in order to achieve long ranges with the technology of the time, trials were undertaken with floatplanes piggy-backed atop flying boats. With the floatplane carried part of the way to its destination and freed from having to use any of its own fuel in the initial climb, these
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Early pioneers in powered and unpowered flight used gravity to accelerate their aircraft to a speed which allowed its wings to generate enough lift to achieve independent flight. These included attempts to achieve flight from towers, city walls and cliffs. Generally more successful were attempts in
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JATO stands for 'Jet-assisted takeoff' (and the similar RATO for 'Rocket-assisted takeoff'). In the JATO and RATO systems, additional engines are mounted on the airframe which are used only during takeoff. After that the engines are usually jettisoned, or else they just add to the parasitic weight
257:"Gigant" used rocket units beneath the wings for assisted takeoff. Such systems were popular during the 1950s, when heavy bombers started to require two or more miles of runway to take off fully laden. This was exacerbated by the relatively low power available from 241:
MR.3 Phase 2, had permanently attached JATO engines. The four J-47 turbojet engines on the B-36 were not considered JATO systems; they were an integral part of the aircraft's propulsion, and were used during takeoff, climb, and cruise at altitude. The
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engines to yield the required performance, and still needed RATO for very heavy payloads (a proposed update of the B-52 replaces these with half the number of much more powerful engines). In a
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context, RATO and JATO bottles were seen as a way for fighter aircraft to use the undamaged sections of runways of airfields which had been attacked.
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along its length, pulling the plane with it. This system allows more precise control over the launch power, causing less wear on the aircraft.
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or mother craft. This may be because the daughter craft is incapable of taking off normally e.g. the atmospheric flight tests of the
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combinations could deliver light but time-critical cargos faster and farther than a single individual aircraft (for example the
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Glider aircraft which do not have an engine also require an assisted takeoff. Apart from self launching gliders,
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can be equipped with a JATO rocket system to shorten takeoff as used in the LC-130 Skibird for polar missions.
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which speed was built up by accelerating down hills and mountain slopes, sometimes on rails or ramps.
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Another form of gravity assistance is when an aircraft is released from a larger
726: 404: 380: 341: 24: 465: 318: 128: 756: 258: 183: 407:, a long-range bomber proposal, using a rail-mounted captive rocket booster. 357: 270: 266: 218:(EMALS). An electromagnetic wave traveling through the motor propels the 148: 140: 693: 599: 505: 298: 290: 164: 644: 629: 160: 653: 639: 609: 317: 182: 127: 683: 678: 673: 668: 658: 649: 634: 624: 619: 614: 604: 566: 282: 231: 469: 18: 237:
and drag of the aircraft. However, some aircraft such as the
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length, or a combination of all three factors. Assisted
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Tow line and towing aircraft seen from the cockpit of a
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F/A-18 attached to steam catapult preparatory to launch
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to get into the air (as opposed to strictly under its
426:"LC-130 Skibird Aircrews Train for Polar Operations" 692: 585: 547: 504: 49:. Unsourced material may be challenged and removed. 375:Hot air balloons have acted as "motherships" to 458:(1 ed.). European Aviation Safety Agency. 481: 159:, insufficient power, insufficient available 16:System used to help aircraft get into the air 8: 191:A well-known type of assisted takeoff is an 488: 474: 466: 383:in altitude and distance record attempts. 210:is replacing carrier steam catapults with 175:and are unable to take off by themselves. 109:Learn how and when to remove this message 417: 395:, for an example of gravity assistance. 285:recognizes four other launch methods: 216:electromagnetic aircraft launch system 401:, for the work of the early pioneers. 7: 47:adding citations to reliable sources 326:pictured just after release from a 742:Shipborne rolling vertical landing 14: 23: 34:needs additional citations for 314:Mother ship (carrier) aircraft 195:. In modern systems fitted on 1: 793:Types of take-off and landing 121:For other uses of "ATO", see 261:at the time—for example the 214:. The system is called the 809: 430:U.S. DEPARTMENT OF DEFENSE 333: 263:Boeing B-52 Stratofortress 229: 147:is any system for helping 120: 772:Floating landing platform 664:Launch and recovery cycle 449:Part FCL Handbook, EASA. 212:linear induction motors 199:, a piston, known as a 171:, which do not have an 767:Water landing/ditching 519:Non-rocket spacelaunch 514:Balanced field takeoff 331: 249:During WW2 the German 188: 157:maximum takeoff weight 136: 595:Brodie landing system 356:, and previously the 321: 230:Further information: 186: 167:is also required for 131: 762:Touch-and-go landing 370:Short Mayo Composite 255:Messerschmitt Me 323 123:ATO (disambiguation) 43:improve this article 747:Short-field landing 587:Takeoff and landing 498:takeoff and landing 399:History of aviation 393:Colditz Cock glider 58:"Assisted take-off" 539:Zero-length launch 332: 305:Gravity assistance 189: 137: 780: 779: 722:Emergency landing 717:Deadstick landing 712:Crosswind landing 707:Corkscrew landing 549:Assisted take-off 336:Parasite aircraft 197:aircraft carriers 193:aircraft catapult 119: 118: 111: 93: 800: 524:Rejected takeoff 490: 483: 476: 467: 460: 459: 457: 446: 440: 439: 437: 436: 422: 330:carrier aircraft 179:Catapults (CATO) 145:assisted takeoff 114: 107: 103: 100: 94: 92: 51: 27: 19: 808: 807: 803: 802: 801: 799: 798: 797: 783: 782: 781: 776: 688: 581: 562:Ground carriage 543: 500: 494: 464: 463: 455: 448: 447: 443: 434: 432: 424: 423: 419: 414: 389: 338: 316: 307: 295:bungee launches 279: 265:required eight 244:Hercules LC-130 239:Avro Shackleton 234: 228: 181: 126: 115: 104: 98: 95: 52: 50: 40: 28: 17: 12: 11: 5: 806: 804: 796: 795: 785: 784: 778: 777: 775: 774: 769: 764: 759: 754: 749: 744: 739: 734: 732:Forced landing 729: 724: 719: 714: 709: 704: 698: 696: 690: 689: 687: 686: 681: 676: 671: 666: 661: 656: 647: 642: 637: 632: 627: 622: 617: 612: 607: 602: 597: 591: 589: 583: 582: 580: 579: 574: 569: 564: 559: 553: 551: 545: 544: 542: 541: 536: 531: 526: 521: 516: 510: 508: 502: 501: 495: 493: 492: 485: 478: 470: 462: 461: 441: 416: 415: 413: 410: 409: 408: 402: 396: 388: 385: 315: 312: 306: 303: 287:winch launches 278: 275: 227: 224: 180: 177: 117: 116: 31: 29: 22: 15: 13: 10: 9: 6: 4: 3: 2: 805: 794: 791: 790: 788: 773: 770: 768: 765: 763: 760: 758: 755: 753: 750: 748: 745: 743: 740: 738: 735: 733: 730: 728: 727:Flexible deck 725: 723: 720: 718: 715: 713: 710: 708: 705: 703: 702:Belly landing 700: 699: 697: 695: 691: 685: 682: 680: 677: 675: 672: 670: 667: 665: 662: 660: 657: 655: 651: 648: 646: 643: 641: 638: 636: 633: 631: 628: 626: 623: 621: 618: 616: 613: 611: 608: 606: 603: 601: 598: 596: 593: 592: 590: 588: 584: 578: 575: 573: 570: 568: 565: 563: 560: 558: 555: 554: 552: 550: 546: 540: 537: 535: 532: 530: 529:Rocket launch 527: 525: 522: 520: 517: 515: 512: 511: 509: 507: 503: 499: 491: 486: 484: 479: 477: 472: 471: 468: 454: 453: 445: 442: 431: 427: 421: 418: 411: 406: 403: 400: 397: 394: 391: 390: 386: 384: 382: 378: 373: 371: 365: 363: 359: 355: 349: 347: 346:Space Shuttle 343: 337: 329: 325: 320: 313: 311: 304: 302: 300: 296: 292: 288: 284: 276: 274: 272: 268: 264: 260: 256: 252: 247: 245: 240: 233: 226:JATO and RATO 225: 223: 221: 217: 213: 209: 208:United States 204: 202: 198: 194: 185: 178: 176: 174: 170: 166: 162: 158: 154: 150: 146: 142: 135: 130: 124: 113: 110: 102: 99:December 2007 91: 88: 84: 81: 77: 74: 70: 67: 63: 60: –  59: 55: 54:Find sources: 48: 44: 38: 37: 32:This article 30: 26: 21: 20: 752:Soft landing 737:Hard landing 548: 534:Space launch 451: 444: 433:. 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"Assisted take-off"
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ATO (disambiguation)

glider
aviation
aircraft
own power
maximum takeoff weight
runway
takeoff
gliders
engine

aircraft catapult
aircraft carriers
United States
linear induction motors
electromagnetic aircraft launch system
armature
JATO

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