helicopter frames consist of the fuselage

>> /TT1 313 0 R /Lang (EN-GB) /S /Tabelle_content 203 0 obj /Sh7 355 0 R /K 122 % /A 515 0 R /C2_0 332 0 R /S /Artifact The evolution of composites Wood and dope and fabric structures in the 1930s and '40s gave way to thin-skinned adhesively bonded aluminum structures in the 1950s and '60s. /TT3 314 0 R 264 0 obj Airframe design encompasses engineering. /K 106 A statically stable aircraft is one that will tend to return to straight and level flight if the controls are released, which is a requirement for all civil and general aviation aircraft. Contact Us | Privacy Policy | Terms of Use, The airframe, or fundamental structure, of a helicopter can be made of either metal, wood, or composite materials, or some combination of the two. /Sh9 357 0 R /Sh4 352 0 R endobj 222 0 obj /S /Tabelle_content Introduction The design of a new rotorcraft is generally considered as a highly challenging task. endobj /P 537 0 R >> << [Figure 1-13] Helicopter airframes consist of the fuselage, main rotor and related gearbox, tail rotor (on helicopters with a single main rotor), and the landing gear. /A 481 0 R << /K 152 endobj 210 0 obj << /Marked true /S /Subscript /ProcSet [/PDF /Text /ImageC] << /K 52 74 0 R 75 0 R 76 0 R 77 0 R 78 0 R 79 0 R 80 0 R 81 0 R 82 0 R 83 0 R endobj >> >> Popular Products of Safe Durable Forward fuselage Dock Aircraft Scaffolding with Fix type Liftable type by Aircraft Scaffolding - Beijing Kangde General Equipment Co.,Ltd. /S /Subscript They also do not require regular lubrication, which reduces maintenance. << << >> /Pg 35 0 R 69 0 obj /Font << The mast is a cylindrical metal shaft that extends upwards from and . << 123 0 obj /TT3 291 0 R >> 230 0 obj endobj /ColorSpace << << << << /Title (1. /S /Subscript /S /Tabelle_content 104 0 obj -as the angle of attack increases, canter of pressure moves forward along the airfoil surface /K [0 271 0 R] /TT4 314 0 R /S /Normal /Mendeley#20Recent#20Style#20Name#201_1 (American Political Science Association) endobj /Fm4 299 0 R /Lang (EN-GB) /Fm0 295 0 R /A 407 0 R >> /P 17 0 R /Lang (EN-GB) /S /P /Lang (EN-GB) /Mendeley#20Citation#20Style_1 (http://www.zotero.org/styles/harvard1) >> /Fm1 296 0 R Additionally, the remainder of the air from the fan is sent through the tail boom to a vent on the aft left side of the boom where it is expelled. /Lang (EN-GB) /Lang (EN-GB) /Resources << << /K 1 /A 471 0 R fiber), or carbon fiber. endobj /A 416 0 R << /K 5 endobj /K 1 /Icircumflex /Idieresis /Eth /Ntilde /Ograve /Oacute /Ocircumflex /Otilde /Odieresis /multiply /K 75 /Count 0 /S /Span >> /Pg 35 0 R /K 62 /Pg 35 0 R 191 0 obj /P 256 0 R /K 46 >> /S /Tabelle_content /S /Tabelle_content /DropCap /Figure /Pg 35 0 R /S /Tabelle_content /S /Normal 51 0 obj /F4 292 0 R /K 36 /K 85 /Pg 35 0 R /Rotate 0 The wings and tail section are attached to the fuselage, and depending on the design of the aircraft, may include engine attachments too. /K 19 /K 3 /Mendeley#20Recent#20Style#20Id#201_1 (http://www.zotero.org/styles/american-political-science-association) /S /Span endobj /P 426 0 R /S /Tabelle_content /Pg 35 0 R << >> endobj /A 587 0 R >> /GS2 309 0 R /Pg 35 0 R -the center of pressure movement is limited, which makes it very desirable on helicopters, -Center of pressure is variable on this type of airfoil /Pg 35 0 R /Lang (EN-GB) /P 597 0 R /Lang (EN-GB) >> /Tabs /S /Encoding 8 0 R /Pg 26 0 R /CropBox [0.0 0.0 595.32 841.92] << 1 April 2011. endobj /Im0 376 0 R /A 493 0 R /P 610 0 R /TT3 314 0 R The airframe of a fixed-wing aircraft consists of five principal units: the fuselage, wings, stabilizers, flight control surfaces, and landing gear. /A 469 0 R /S /Subscript /XObject << /K 12 >> /K [0 127 0 R 6 128 0 R 8 129 0 R 10 130 0 R 12 131 0 R They are used to join different components of an airplane's frame. /S /Normal Thicker skins are advantageous as these are less likely to buckle under load, resulting in a more efficient structure. May or may not actuate during blade folding, -self exited vibration, which occurs on the ground /XObject << << 236 0 obj << http://www.zotero.org/styles/american-political-science-association /Pg 35 0 R >> /Lang (EN-GB) >> /Pg 35 0 R << /S /Tabelle_content >> << /K 10 86 0 obj /S /Artifact /K 150 /K 35 /Resources << /S /Subscript /Pg 24 0 R /Pg 35 0 R << Torque, another problem associated with the physics of a rotating wing, causes the helicopter fuselage (cabin) to rotate in the opposite direction from the rotor, especially when the helicopter is moving at low speeds or hovering. /Pg 43 0 R /A 665 0 R 237 0 obj The sections are lined up and riveted together using joining plates. /ProcSet [/PDF /Text] >> /Sh0 315 0 R /Lang (EN-GB) /CropBox [0.0 0.0 595.32 841.92] 59 0 obj /P 17 0 R /S /Subscript /Lang (EN-GB) /Pg 42 0 R << /Pg 35 0 R endobj /K 3 /A 616 0 R /TT1 289 0 R /Pg 35 0 R /A 569 0 R /Lang (DE-DE) /S /Tabelle_content << /Lang (EN-GB) /Type /Page 21 0 obj /ProcSet [/PDF /Text /ImageC] These operators should modify the DayOfYear object so that it represents the next day. << /Resources << /A 462 0 R 199 0 R 200 0 R 201 0 R null 202 0 R null 203 0 R 204 0 R 205 0 R 206 0 R /Last 12 0 R /CS0 [/ICCBased 287 0 R] /A 656 0 R Cyclic Control A helicopter pilot controls the pitch, or angle, of the rotor blades with two inputs: the cyclic- and collective-pitch levers, often just shortened to the cyclic and the collective. /Name /ZaDb >> /Pg 35 0 R These materials typically consist of strong fibers embedded in a resin (in this case, graphite fibers embedded in epoxy). 196 0 obj You can probably guess by now that these are holdovers from the marine industry. /Contents 379 0 R 171 0 obj One popular aircraft designed with a space frame fuselage is the iconic PA-18 Piper Super Cub which is pictured below. /Fm3 298 0 R /TT2 303 0 R Quick delivery of your "Antonov An-30. /S /Normal 253 0 obj /A 477 0 R /S /Tabelle_content << endobj $A`g @B0HP[$>3012Ig /P 17 0 R /Lang (EN-GB) << -Can be thought of as the Aircraft pivot pts. 174 0 obj /S /Tabelle_content /Fm3 298 0 R /P 17 0 R 31 0 obj A team of enthusiats at your service. endobj << 259 0 obj << 244 0 obj >> /P 73 0 R There is a YouTube video showing the method for creating the structure: YouTube: 787 Composite Construction. /TT0 310 0 R /ExtGState << /Lang (EN-GB) /Pg 36 0 R endobj /brokenbar 168 /dieresis /copyright /ordfeminine 172 /logicalnot /.notdef /registered /macron /Pg 42 0 R /SourceModified (D:20170502160949) endobj << null 170 0 R 171 0 R null 172 0 R null 173 0 R 174 0 R 175 0 R 176 0 R /S /Heading#201 >> 164 0 obj 181 0 obj /Pg 35 0 R /TT1 290 0 R 1. 223 0 obj /A 557 0 R <> /Pg 43 0 R /DisplayDocTitle true 252 0 obj /K 140 endobj /ExtGState << 204 0 obj Additionally, a horizontal member called a stabilizer is often constructed at the tail cone or on the pylon. May 23, 2021 . 267 0 obj >> 231 0 obj /Pg 35 0 R /P 576 0 R /Type /Metadata /Lang (EN-GB) /K 28 /K 26 /S /Artifact endobj /ColorSpace << /CS0 [/ICCBased 287 0 R] >> /Pg 33 0 R /Lang (DE-DE) 132 0 obj /Artifact /P /S /Normal 121 0 obj /MediaBox [0.0 0.0 595.32 841.92] /Lang (EN-GB) /Fm1 296 0 R CONTROLLED FLAMBING ANTI-CRASH COMPOSITE STRUCTURE FOR AIRCRAFT. << >> [Figures 10], {getWidget} $results={3} $label={recent} $type={list1}. endobj << 162 0 obj It can perform a lot of manoeuvres faster than other contemporary helicopters and reaches top speed without having to wait much. /Mendeley#20Recent#20Style#20Id#209_1 (http://www.zotero.org/styles/nature) /XObject << Acknowledgements) 176 0 obj /S /Normal << >> >> /A 562 0 R << << /A 645 0 R The internal wing structure, consisting of spars, ribs and stringers, and the external wing, which is the skin. /Mendeley#20Recent#20Style#20Id#207_1 (http://www.zotero.org/styles/modern-humanities-research-association) >> /S /Tabelle_content /GS0 307 0 R Thin sheets of the material can be stacked in various ways to meet specific strength or . /A 490 0 R /K 94 endobj -motion about this axis is called roll and is controlled by the cyclic stick, -Runs from top center of aircraft to the bottom center >> endobj /GS1 308 0 R /S /Tabelle_content 266 0 R null 107 0 R 267 0 R null 108 0 R 109 0 R 268 0 R null 269 0 R It is lightweight and it has good acceleration. /A 614 0 R /Pg 35 0 R << >> endobj /Lang (EN-GB) /A 520 0 R /S /Tabelle_content /MediaBox [0.0 0.0 595.32 841.92] /Title (3. /CS1 [/ICCBased 306 0 R] /K 86 /Mendeley#20Recent#20Style#20Name#203_1 (American Sociological Association) The invention relates to a helicopter fuselage of the type including a central structure to which are linked a front structure, a rear structure and a landing gear, and which supports a transmission gearbox, a main rotor and at least one engine (50), and of the type in which the central structure includes a skeleton (16) fitted with covering elements which define the external shape of the . >> endobj /S /P << /Type /Page 115 0 obj >> >> /P 17 0 R endobj /Mendeley#20Recent#20Style#20Id#205_1 (http://www.zotero.org/styles/harvard1) /Mendeley#20Recent#20Style#20Name#205_1 (Harvard Reference format 1 $author-date$) >> /P 73 0 R /Lang (EN-GB) /Sh7 325 0 R Chicago Manual of Style 16th edition (author-date) /K 5 /K 38 /MediaBox [0.0 0.0 595.32 841.92] >> /StructTreeRoot 6 0 R endobj /P 567 0 R /Pg 35 0 R /ParentTree 18 0 R >> /S /Tabelle_content >> 235 0 obj endobj 95 0 obj -Consists of 2 main rotors located 1 directly behind the other. 0 << Install and secure the hardware onto the front mounting bracket. . /S /P 122 0 obj /Sh12 319 0 R >> >> Helicopters come in a variety of sizes and shapes, but most share the same major components [10- 13] (Figure 1). /Lang (EN-GB) Anti-torque tail rotor Without a tail rotor, the main rotor of a helicopter simply spins the fuselage in the opposite direction. /Contents 358 0 R /Fm0 295 0 R /P 17 0 R >> 249 0 obj >> /Pg 35 0 R 207 0 obj << /K << /Pg 41 0 R >> << >> Single Rotor. /Lang (EN-GB) /K 82 endobj /S /Normal The tail boom and tail rotor, or antitorque rotor, counteract this torque effect. /K 180 << /Contents 375 0 R /A 486 0 R endobj /MediaBox [0.0 0.0 595.32 841.92] /A 618 0 R /P 17 0 R 35 0 obj 106 0 obj << /Fm1 296 0 R endobj /K [185 442 0 R] /Pg 43 0 R 183 0 obj /A 571 0 R /P 17 0 R endobj >> endobj /K 0 /Lang (EN-GB) /S /Span /Pg 30 0 R /P 499 0 R /S /Normal 229 0 obj /A 408 0 R 18 [99 0 R 100 0 R 265 0 R null 101 0 R 102 0 R 103 0 R 104 0 R 105 0 R 106 0 R >> /GS0 288 0 R << /S /P What are the values of the SHGC and SC of a single-pane clear-glass window? /Pg 35 0 R /Lang (EN-GB) /TT0 290 0 R 295. /P 583 0 R /Lang (EN-GB) /S /Tabelle_content >> /K 13 >> endobj /Resources << /Contents 328 0 R /XObject << >> -Consists of 1 main rotor and a rotary rudder. /P 17 0 R Free shipping above 99. >> /Mendeley#20Document_1 (True) /Fm2 297 0 R /Pg 35 0 R <> /Parent 16 0 R /ProcSet [/PDF /Text] /Pg 30 0 R /S /Normal endobj /GS0 307 0 R Some of the forces acting on a wing spar are: Upward bending loads resulting from the wing lift force that supports the fuselage in flight. << /ProcSet [/PDF /Text] 169 0 obj /Parent 13 0 R /Pg 35 0 R >> /S /Tabelle_content /S /Normal /Lang (EN-GB) >> 177 0 R null 178 0 R null 179 0 R 180 0 R 181 0 R 182 0 R 183 0 R null 38 0 obj >> >> /Mendeley#20Recent#20Style#20Id#200_1 (http://www.zotero.org/styles/american-medical-association) >> 274 0 obj >> >> http://www.zotero.org/styles/harvard1 /Resources << >> /Pg 35 0 R /S /Normal 137 0 obj /S /Tabelle_content /Lang (EN-GB) endobj H|SMo0+, Structural Analysis of Rotorcraft Fuselage in a Multidisciplinary Environment. /P 109 0 R /K 41 of the year, the new value of the object will represent the first day of the year. /P 17 0 R Insert the heli into the fuselage and reassemble the tail rotor assembly. /P 639 0 R /A 386 0 R /K 164 >> /K 131 /P 417 0 R endobj /A 492 0 R 188 0 obj /K 130 >> /S /Normal >> << /Lang (EN-GB) endobj null 110 0 R 270 0 R null 111 0 R] /A 392 0 R /P 46 0 R /Lang (EN-US) >> Thanks for reading. Ordinarily, helicopters have between two and seven main rotor blades. /K 114 /Lang (EN-GB) << >> /K 0 << >> [Figure], {getWidget} $results={3} $label={recent} $type={list1}, Helicopter Components and Sections and Systems, Helicopter Components, Sections and Systems, Swash Plate Assembly and Freewheeling Unit. >> /S /Normal /A 518 0 R >> /K 13 >> /S /Tabelle_content -allows blades to flap up, down, lead, and lag, -Air cushion formed when hovering close to the ground /ColorSpace << /K [21 270 0 R] 133 0 obj << This video from British Airways shows the joining process: Fuselage Section Joining Process which you can see is not welded, but riveted together. /Parent 15 0 R /K 11 /Pg 43 0 R /Pg 35 0 R /Pg 30 0 R /P 532 0 R >> /K 181 /ColorSpace << /Lang (EN-GB) 60 0 obj << endobj Frames also provide a means to introduce point loads into the fuselage. 248 0 obj /A 491 0 R These operators should modify the DayOfYear object so that it represents the previous day. endobj /A 668 0 R endobj /P 17 0 R /Lang (DE-DE) Rotary wing aircraft which obtains lift and thrust from mechanically driven airfoils. Enthusiats at your service : at 1001hobbies, we share yo << Various dampers and stops can be found on different designs to reduce shock and limit travel in certain directions. /Pg 35 0 R endobj Nature 100 0 obj /Pg 35 0 R /K 10 Many military and reconnaissance planes today are made from titanium or . 191 0 R 192 0 R 193 0 R 194 0 R 195 0 R null 196 0 R null 197 0 R 198 0 R 114 0 obj >> >> /P 73 0 R /K [5 395 0 R] 135 0 obj 0. /Lang (EN-GB) /S /Tabelle_content 64 0 obj >> << 85 0 obj >> >> /StructParents 11 /Pg 35 0 R /K 70 /Parent 5 0 R /ExtGState << Maybe I wasn't clear. /Footnote /Note /Resources <> >> << << /Normal /P 260 0 obj /K 183 endobj endobj /K 42 /K 158 /Type /Pages /A 636 0 R /P 17 0 R << /K 3 /A 472 0 R >> /K 11 endobj /Mendeley#20Recent#20Style#20Name#200_1 (American Medical Association) 24 0 obj /S /Normal /Lang (EN-GB) endobj endobj -mechanically connected to the main transmission gearbox through a main driveshaft, Transmits torque from the power turbine to the main gearbox and is dynamically balanced, Main transmission gearbox /Lang (EN-GB) /S /LBody /Type /Page /P 415 0 R The constructor should then initialize the integer member of the class to represent the day specified by the month and day of month parameters. /Lang (EN-GB) << << >> /K 25 /K 17 endobj /Pg 41 0 R /Lang (EN-GB) /K 101 - The invention relates to a helicopter fuselage of the type including a central structure to which are attached a front structure, a rear structure and a landing gear, and which supports a transmission gearbox, a main rotor and at least one engine (50), and of the type in which the central structure includes a framework (16) fitted with cladding elements which define the external shape of the . /Fm1 296 0 R /P 73 0 R /Pg 33 0 R /P 17 0 R /Pg 33 0 R /PDFDocEncoding 8 0 R endobj /S /Normal >> /Pg 30 0 R Using a 2mm self tap screw, access the rear bracket hole and tap a drill hole for the rear bracket. /Lang (EN-GB) endobj << Gas generator turbine 16 0 obj /Lang (EN-GB) >> 262 0 obj >> /S /Tabelle_content During the early days of aviation, primitive fuselages were built with wood. /TT0 310 0 R /Pg 30 0 R /A 480 0 R /Resources << /Kids [24 0 R 25 0 R 26 0 R 27 0 R] endobj /A 533 0 R It features frames designed to create the shell of the fuselage, which are secured via cross sections on a rigid fixture. << /Pg 35 0 R 255 0 obj /Lang (EN-GB) /S /Tabelle_content /Contents [277 0 R 278 0 R 279 0 R 280 0 R 281 0 R 282 0 R 283 0 R 284 0 R 285 0 R 286 0 R] 22 0 obj /Pg 35 0 R >> 145 0 obj /Parent 4 0 R >> /ColorSpace << /Pg 42 0 R /CS1 [/ICCBased 306 0 R] /S /Normal endobj The semi-monocoque construction, which is virtually standard in all modern aircraft, consists of a stressed skin with added stringers to prevent buckling, attached to hoop-shaped frames. /TT2 303 0 R /Count 4 >> /P 644 0 R /Lang (EN-GB) << Structural analysis) /Lang (EN-GB) /MediaBox [0.0 0.0 595.32 841.92] /P 559 0 R /Lang (EN-US) Large bending loads are introduced from the wing and tail sections, as well as a torsional load from the pitching moment of the wing. /P 17 0 R Landing loads introduced into the fuselage can be particularly severe if the landing is executed poorly. 275 0 obj /Pg 35 0 R /Pg 35 0 R >> Fabric-covered fuselage of the Heath Parasol, 1931 1931: Giant Flying Boat for Navy: the first of nine huge twin-engined Martin flying boats, the largest craft of their kind in th. 238 0 obj << /CS0 [/ICCBased 287 0 R] 261 0 obj 273 0 obj << >> /Sh11 318 0 R >> This torque increases with engine power and tries to spin the fuselage in the opposite direction. >> 147 0 obj 14 132 0 R 16 133 0 R 18 134 0 R 20] endobj /CS1 [/ICCBased 306 0 R] /Type /Page It's enough to make your stomach heave just thinking about all that endless circling. /Pg 24 0 R http://www.zotero.org/styles/modern-language-association /P 17 0 R /P 17 0 R /Lang (EN-GB) 73 0 R] endobj /Type /Page 65 0 obj /S /Tabelle_content /K 77 /Type /Page /DA (/Helv 0 Tf 0 g ) /Pg 41 0 R /K 132 /P 17 0 R endobj /K 68 /A 527 0 R endobj /Type /Page /A 600 0 R /P 425 0 R /K 76 /S /Normal /A 573 0 R << 71 0 obj << endobj The load-bearing skins are attached to the stringers and frames of an aluminium aircraft through rivets. /Company (nafems) >> /Resources << /ViewerPreferences << CONTROLLED FLAMBING ANTI-CRASH COMPOSITE STRUCTURE FOR AIRCRAFT. >> /Sh18 348 0 R >> Typically, a composite component consists of many layers of fiber-impregnated resins, bonded to form a smooth panel. /Mendeley#20Recent#20Style#20Name#202_1 (American Psychological Association 6th edition) /Pg 35 0 R /XObject << /Pg 35 0 R /CS0 [/ICCBased 287 0 R] 243 0 obj /K 9 /P 437 0 R /Pg 35 0 R /Sh3 321 0 R /TT1 289 0 R /Lang (EN-GB) /S /Tabelle_content 10 0 obj << -Runs from nose to tail >> << >> /S /Tabelle_content /D [24 0 R /XYZ 104 737 0.0] /P 429 0 R What does the landing gear group of helicopter include? /P 17 0 R << /K 5 /S /Normal 32 0 obj /P 17 0 R /Pg 26 0 R /P 17 0 R endobj /CropBox [0.0 0.0 595.32 841.92] /P 631 0 R /Lang (EN-US) /K 115 >> /P 649 0 R /P 619 0 R endobj /TT1 289 0 R /Oslash /Ugrave /Uacute /Ucircumflex /Udieresis /Yacute /Thorn /germandbls /agrave /aacute American Medical Association If you scaled a standard 355mL beverage can proportionally to a cylinder of diameter equal to the fuselage of something like a B737 (imagine exactly a pop can the size of an aircraft), you would find that the pop can would have a wall thickness several times (2-4) thicker than the aircraft. endobj 3. << << 202 0 obj 212 0 obj 150 0 obj Piper PA-18 Super Cub with a Space Frame Fuselage. -on helicopters using 2 engines, the main trans. Here we are only going to consider the semi-monocoque design philosophy, and how it relates to the fuselage structure. /Lang (EN-GB) /A 450 0 R << << >> /ProcSet [/PDF /Text] << endobj endobj /P 495 0 R While held in check from sliding back and forth, the teetering hinge does allow the blades to flap up and down. /P 423 0 R /Fm1 296 0 R /A 389 0 R /Pg 35 0 R >> <> 155 0 obj << A typical semi-monocoque fuselage consists of the following elements: These make up the longitudinal components of the structure. The fuselage does more than just house the occupants of the aircraft; it must be sized and designed to ensure that the wings and tail are positioned in such a way so as to keep the aircraft statically stable through the designed center of gravity envelope. /S /Artifact << endobj Panels were made with the same geometrical shape and dimensions but . /TT1 310 0 R >> Main transmission gearbox accessory section 2023 AeroToolbox.com | Built in Python by, Aerodynamic Lift, Drag and Moment Coefficients, Aircraft Horizontal and Vertical Tail Design. /CropBox [0.0 0.0 595.32 841.92] consist of: [phrasal verb] to be formed or made up of (specified things or people). endobj /Parent 14 0 R /S /Tabelle_content endobj << This article is part of a series on Airframe Structure And Control Surfaces. /GS0 307 0 R /Subscript /Span When blade rotation reaches the point where the blade becomes the retreating blade, the extra lift is lost and the blade flaps downward. endobj /S /Tabelle_content 195 0 obj endobj endobj Frames are transverse elements that define the cross-section of the fuselage. /ColorSpace << /Lang (EN-GB) /K [1 265 0 R] /P 642 0 R endobj 163 0 obj >> >> >> << /Fm1 296 0 R /F5 293 0 R /Rotate 0 /Lang (EN-GB) >> /K 3 endobj /Pg 35 0 R /Im0 370 0 R >> >> /K 134 /GS0 307 0 R 226 0 obj >> /Lang (EN-GB) /S /Normal /Lang (EN-GB) << What happens to the inflow of air during forward flight? /P 17 0 R Most have the pilot seated on the right side, although there are some with the pilot seated on the left side or center. /Lang (EN-GB) stream endobj << /TT2 329 0 R << /Pg 35 0 R endobj 114 0 R 115 0 R 116 0 R 117 0 R 118 0 R] 227 0 obj /TT2 311 0 R The structures of the helicopter are designed to give the helicopter its unique flight characteristics. /P 568 0 R >> << /TT2 314 0 R /Lang (EN-GB) /A 578 0 R /Lang (EN-GB) >> /Rotate 0 /Pg 33 0 R 50 0 obj >> /A 602 0 R /P 675 0 R /S /Normal -uses free turbine principle for PTO to drive the main trans. /S /Tabelle_content /ProcSet [/PDF /Text] Flapping is caused by a phenomenon known as dissymmetry of lift. /CS1 [/ICCBased 306 0 R] /Sh10 317 0 R 62 0 obj /Type /Pages /S /Normal >> Water lines (WL) designate location in the height of the aircraft, from ground up. endobj /P 662 0 R 242 0 obj 198 0 obj endobj endobj 143 0 obj /A 596 0 R << 41 0 obj endobj /Lang (EN-GB) /Fm0 295 0 R /A 663 0 R /K 144 endobj /P 604 0 R /A 546 0 R -when the angle of attack decreases, center of pressure moves rearward, Direction of airflow opposite the direction of the rotating blades, Angle created between the chord Line of the airfoil and the relative wind >> << /Lang (EN-GB) >> 265 0 obj /S /Normal >> /K 22 The fuselage generates its own aerodynamic loads during flight which must be reacted by the structure. << /K 1 /Subtitle#2CFig /H2 /Next 12 0 R endobj >> /Parent 14 0 R 127 0 obj /ProcSet [/PDF /Text] /Font << /S /Normal /S /Artifact >> /Pg 41 0 R endobj A simplified explanation of how a helicopter flies is that the rotors are rotating airfoils that provide lift similar to the way wings provide lift on a fixed-wing aircraft. << << /Sh5 353 0 R 16 a, paragraph 1, Information on the status of an ep patent application or granted ep patent, Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977), Nl: receipt of modified translations in the netherlands language after an opposition procedure, Annual fee paid to national office [announced via postgrant information from national office to epo], Nl: lapsed or anulled due to non-payment of the annual fee, Lapsed in a contracting state [announced via postgrant information from national office to epo], Gb: european patent ceased through non-payment of renewal fee. /Pg 35 0 R endobj /Im0 373 0 R << -produces thermal or heat energy to drive power turbine, Front frame endobj They are designed to take up the forces of blade hunting and dissymmetry of lift by flexing. /Resources << /Lang (EN-GB) << /S /Artifact /Pg 35 0 R /Lang (EN-GB) /ExtGState << /Fields [] >> << /Fm0 295 0 R /K 24 /P 603 0 R 237 0 R null 238 0 R null 239 0 R 240 0 R 241 0 R 242 0 R 243 0 R null /P 17 0 R /Pg 30 0 R /K 107 /Lang (EN-GB) /P 640 0 R /Filter /FlateDecode >> << The wings and tail section are attached to the fuselage, and depending on the design of the aircraft, may include engine attachments too. endobj /P 514 0 R << >> >> endobj /Mendeley#20Recent#20Style#20Name#206_1 (IEEE) /K 98 /ExtGState <> /Pg 30 0 R << << >> /Pg 35 0 R 120 0 obj /TT2 312 0 R /TT1 310 0 R /Kids [28 0 R 29 0 R 30 0 R 31 0 R 32 0 R 33 0 R] /Lang (EN-GB) /S /Tabelle_content The fuselage is the name given to the main body of the aircraft and houses the pilots, crew, passengers, and cargo. >> << passenger, has fuselage with straight sections whose maximal height is continuously evolved between maximal height of central zone in connection section and reduced end height at concerned edge of fuselage, Storage compartment for the nose gear of an aircraft, Frame for an opening provided in an aircraft fuselage, Method to increase the safety in air transportation, AIRCRAFT COMPRISING A PASSENGER CAB EXTENDING A SPACE EXTERIOR TO THE CABIN PROVIDED WITHIN THE AIRCRAFT, FUSELAGE AIRCRAFT PROVIDED WITH SIDE EXCREASES DELIMINATING STORAGE SPACES, Aircraft turbine engine assembly comprising a hinged cover, Module for front landing gear for an aircraft, Rotorcraft equipped with fuel reservoirs mounted suspended under a load carrying median floor of the rotorcraft fuselage, REAR AIRCRAFT PART PROVIDED WITH SUPPORT STRUCTURE OF OPTIMIZED SHAPE ENGINES, Utility vehicle cabin comprises lattice work structure forming chassis on which protection, insulation and bodywork elements are fixed, Public reference made under article 153(3) epc to a published international application that has entered the european phase, Gb: translation of ep patent filed (gb section 77(6)(a)/1977), Reply of patent proprietor to notice(s) of opposition, Nl: opposition has been filed with the epo, Party data changed (patent owner data changed or rights of a patent transferred), Nl: modifications (of names), taken from the european patent patent bulletin, Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. null null 138 0 R null null 139 0 R null null 140 0 R null /Fm2 297 0 R >> /TT1 289 0 R << 239 0 obj << Provides a means of transmitting the movement of flight controls to the blades. /A 544 0 R /P 508 0 R endobj >> /Pg 36 0 R /S /Normal << [Figure 5]. 3 0 obj /S /Artifact /Lang (EN-GB) /Lang (EN-GB) /K 146 /CropBox [0.0 0.0 595.32 841.92] 154 0 obj /Lang (EN-GB) A typical helicopter fuselage structure shown in Fig 1 consists of several key components: (a) Subfloor box, (b) Energy absorbing beam, (c) Box beam frame members, (d) Longitudinal beam, and (e) Outer fuselage skin. 82 0 obj /S /GoTo Modern Humanities Research Association 3rd edition (note with bibliography) In addition, the purpose of an airplane goes a long way in the manufacturers' decision to use a particular type of metal, especially the metal used in the plane's frame and body. endobj Customer satisfaction 4,2/5. << /Subtype /Type1 << 206 0 obj /P 17 0 R The author has contributed to research in topic(s): Tail rotor & Drive shaft. << /Rotate 0 /K 9 /Sh3 351 0 R /ProcSet [/PDF /Text /ImageC] /P 17 0 R /P 17 0 R /A 629 0 R >> endobj << /ExtGState << /S /Subscript , " "" ( " ""), Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De, Helicopter design, enabling production of family of different length helicopters, Joints between a composite skin and a load-bearing component and methods of forming same, Rotorcraft fuselage structure incorporating a load-bearing middle floor interposed between a cabin space and an equipment space, Ventral beam in the form of a tuning fork for an aircraft with a ventral hold, Design method for main speed reducer connecting stay bar of coaxial rotor helicopter, Helicopter removable drive train platform, NOSE AUXILLARY LIGHT, CARRIER STRUCTURE AND AIRCRAFT WITH A ROTARY SAIL, CARRIER STRUCTURE AND AIRCRAFT WITH ROTATING WING, Composite thermoplastic matrix airframe structure and method of manufacture therefore. << /S /Tabelle_content /TT4 314 0 R /GS0 307 0 R /Next 23 0 R /K 4 endobj /S /P /Pg 42 0 R /A 382 0 R /Pg 35 0 R /Font << /ProcSet [/PDF /Text /ImageC] << << Welcome to part two in this five-part series on airframe structures. /A 404 0 R endobj helicopter frames consist of the fuselage. << >> >> -rotation about this axis is called YAW and is controlled by anti-virus pedals, -Runs from one side of the Aircraft to the other side A semi-monocoque structural design is usually favoured; where the sub-structure and the skins work together to absorb and transfer the loads generated during flight. /P 554 0 R >> endobj >> /Parent 13 0 R /Mendeley#20Recent#20Style#20Name#207_1 (Modern Humanities Research Association 3rd edition $note with bibliography$)
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