helicopter frames consist of the fuselage

/S /Artifact endobj /P 422 0 R /P 649 0 R /Lang (EN-GB) >> endobj /Subscript /Span /Fm3 298 0 R /A 573 0 R /D [24 0 R /XYZ 104 737 0.0] >> >> /K 3 /Lang (EN-GB) /Tabs /S /A 455 0 R /K 102 160 0 obj /Pg 35 0 R >> /Pg 35 0 R /Rotate 0 endobj /P 17 0 R /P 648 0 R 54 0 R 55 0 R 56 0 R 57 0 R 58 0 R 59 0 R 60 0 R 61 0 R 62 0 R 63 0 R /S /Artifact endobj Please copy/paste the following text to properly cite this HowStuffWorks.com article: Tom Harris & Talon Homer /Lang (EN-GB) /K 69 /K 56 endobj /Lang (EN-GB) /K 90 293. /Lang (EN-GB) >> /K 6 /P 17 0 R /K 17 /P 633 0 R <> /Lang (EN-GB) /A 668 0 R /P 17 0 R 217 0 obj Landing loads introduced into the fuselage can be particularly severe if the landing is executed poorly. /A 492 0 R gearbox has provisions for operating in the event of a single failure >> /P 657 0 R /S /Tabelle_content /P 17 0 R /Subtype /Type1 /Im0 370 0 R >> >> /Lang (EN-GB) /XObject << 1. /P 628 0 R << >> The internal wing structure, consisting of spars, ribs and stringers, and the external wing, which is the skin. /S /Tabelle_content /Im0 359 0 R >> /S /Normal /A 469 0 R << The fuselage structure must be sufficiently strong to ensure safe operation throughout the flight envelope. >> >> << /MediaBox [0.0 0.0 595.32 841.92] /Tabs /S /A 580 0 R /Pg 35 0 R /ProcSet [/PDF /Text /ImageC] /A 402 0 R /MCID 0 248 0 obj /Pg 43 0 R /CS0 [/ICCBased 287 0 R] /P 73 0 R /Count 6 /Pg 35 0 R endobj What happens when the cyclic control stick is moved forward? endobj BIGTREETECH BTT SKR PICO V1.0 Motherboard On Board TMC2209 UART MURA 270 0 obj /P 417 0 R /Footnote /Note 256 0 obj /Superscript /Span /K 78 /Fm2 297 0 R D:20170502160949 /K [5 120 0 R] /Pg 35 0 R endobj 1. /Pg 25 0 R /S /Tabelle_content /Pg 35 0 R /Font << /S /Normal >> Top customer satisfaction 4,2/5. /CropBox [0.0 0.0 595.32 841.92] /K 4 As such, they can absorb vibration that would normally be transferred by steel bearings. /Pg 42 0 R See Figure 4.12. gila county jail news ivy league sat requirements 2022 ivy league sat requirements 2022 /TT2 290 0 R American Medical Association /Sh11 341 0 R What happens to the inflow of air during forward flight? /K 164 249 0 obj /S /P endobj >> /P 667 0 R /K 77 /Fm2 297 0 R /P 256 0 R 193 0 obj Products include fuselages, wings, empennages, nacelles and helicopter cabins. endobj /S /Tabelle_content 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. 64 0 obj endobj /TT1 289 0 R 225 0 obj << /Type /Page /Lang (EN-US) /K 18 /Tabelle_content /P << /Parent 4 0 R /Pg 24 0 R Only associated with fully articulated rotor systems, Tendency of a helicopters main body to move in the opposite direction of the main rotor when power is applied, Process of producing lift w/the rotor blades as they freely rotate from a flow of air up through the rotor system. << /ProcSet [/PDF /Text /ImageC] /Type /MCR 19 [112 0 R 271 0 R null 113 0 R 114 0 R 115 0 R 116 0 R 117 0 R 118 0 R 272 0 R /P 421 0 R /P 17 0 R /Pg 42 0 R << /TT1 313 0 R /Lang (EN-US) endobj << endobj /Pg 41 0 R /S /Normal /S /Normal /Pg 41 0 R Two critical conditions are considered; horizontal crash landing and 6 g maneuver. /K 11 Figure 1 shows the major components of a typical helicopter. /TT2 314 0 R /TT4 314 0 R >> << <> /Type /MCR /Fm4 299 0 R /S /Artifact /S /Tabelle_content Large frames are required at the wing-fuselage and tail-fuselage interface to transmit the loads generated by these lifting surfaces into the fuselage. << >> /S /Normal /Annotation /Span /K 9 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. 27 0 obj /ColorSpace << Introduction) >> /ProcSet [/PDF /Text /ImageC] << >> /Pg 35 0 R << /K [417 0 R 418 0 R 419 0 R 420 0 R 421 0 R 422 0 R 423 0 R 424 0 R 425 0 R 426 0 R /Font << << >> /Pg 35 0 R /S /Normal endobj >> 72 0 obj /Title (6. << << << /Lang (EN-GB) endobj The tail boom and tail rotor, or antitorque rotor, counteract this torque effect. /K 170 >> /GS0 307 0 R /K 4 /TT0 290 0 R /Lang (EN-GB) /S /Tabelle_content 26 0 obj 123 0 obj /Lang (EN-GB) /K 6 /Type /Page Thanks for reading. >> /Sh15 345 0 R endobj /S /Normal >> A notable fact is that the rotors of a helicopter serve the same purpose as the wings of a plane, so are considered part of the helicopter . << uuid:1829709f-1569-4b41-ae83-38410010e776 Anatomy of a Helicopter: Working the Controls - HowStuffWorks /Oslash /Ugrave /Uacute /Ucircumflex /Udieresis /Yacute /Thorn /germandbls /agrave /aacute /CS0 [/ICCBased 287 0 R] endobj 96 0 obj >> It's enough to make your stomach heave just thinking about all that endless circling. endobj /Metadata 3 0 R /Sh0 338 0 R << endobj /P 17 0 R /S /P /Pg 35 0 R /Type /Catalog /A 479 0 R << >> /P 507 0 R endobj /Normal /P /P 565 0 R June 22, 2022. ilive code for dish remote . /P 644 0 R /Parent 15 0 R 141 0 R null 142 0 R null 143 0 R 144 0 R 145 0 R 146 0 R 147 0 R null endobj Comparing the Different Types of Aircraft Fuselage Structures >> << Piper PA-18 Super Cub with a Space Frame Fuselage. << /Lang (EN-GB) /Pg 35 0 R /Fm2 297 0 R 44 0 obj /K 32 /Pg 35 0 R -used to tilt the tip path plane of the main rotor 234 0 obj endobj /Type /Pages /P 631 0 R /StructTreeRoot 6 0 R The large rotating mass of the main rotor blades of a helicopter produce torque. /Kids [13 0 R 14 0 R 15 0 R 16 0 R] Collective Control The collective-pitch lever is responsible for up-and-down movements. Air flows faster over the curved upper surface of the rotors, causing a negative pressure and thus, lifting the aircraft. /Pg 42 0 R >> 269 0 obj Gas generator turbine >> /S /Tabelle_content 437 0 R 438 0 R] stream /Pg 30 0 R -uses free turbine principle for PTO to drive the main trans. 4 0 obj $A`g @B0HP[$>3012Ig endobj /A 589 0 R /Diagram /Figure /Lang (EN-GB) 191 0 obj << /D [41 0 R /XYZ 104 373 0.0] /K 166 /Pg 35 0 R /A 273 0 R /Sh8 326 0 R /Fm0 295 0 R /Sh4 352 0 R /S /Artifact /Resources << /Next 23 0 R /GS0 307 0 R /P 17 0 R >> /Subtype /Type1 /Fm4 299 0 R endobj 163 0 R 164 0 R 165 0 R null 166 0 R null 167 0 R 168 0 R null 169 0 R << /K 94 /Pg 35 0 R >> These materials typically consist of strong fibers embedded in a resin (in this case, graphite fibers embedded in epoxy). 208 0 obj >> This is in contrast with helicopters or other rotary wing ight vehicles that generate lift using rotating blades. Solved A typical helicopter fuselage structure shown in Fig | Chegg.com /Resources << << /Pg 42 0 R 2023 AeroToolbox.com | Built in Python by, Aerodynamic Lift, Drag and Moment Coefficients, Aircraft Horizontal and Vertical Tail Design. /P 630 0 R /Lang (EN-GB) null] /P 558 0 R Rocket Parts - NASA >> fuselage: [noun] the central body portion of an aircraft designed to accommodate the crew and the passengers or cargo see airplane illustration. /Mendeley#20Recent#20Style#20Id#208_1 (http://www.zotero.org/styles/modern-language-association) /K 91 Modify the DayOfYear class, written in the previous question, to add a constructor that takes two parameters: a string representing a month and an integer in the range 0 through 31 representing the day of the month. /Tabs /S During the early days of aviation, primitive fuselages were built with wood. >> endobj /Pg 42 0 R -lost at air speeds above 10mph, -additional lift obtained when entering horizontal flight due to increased efficiency of rotor system. << /MediaBox [0.0 0.0 595.32 841.92] /S /P /S /Tabelle_content /ExtGState << endobj >> "The Tempo project deals with using new fuselage structures and assembly tasks to reduce the time and cost of current states of production," says Brieskorn. 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 /P 17 0 R endobj /S /Subscript hb```"QfE``CKWrL`fk`e`gvZ8^"wk%rL 24:$n30V@`9>@^iOAmwX1z2u) 8 ~* /S /Span 427 0 R 428 0 R 429 0 R 430 0 R 431 0 R 432 0 R 433 0 R 434 0 R 435 0 R 436 0 R /S /Normal >> endobj In many models, a frameless plastic canopy surrounds the pilot and connects in the rear to a flush-riveted aluminum frame. 134 0 obj /K 124 << /A 394 0 R /K [12 267 0 R] << Chicago Manual of Style 16th edition (author-date) /MediaBox [0.0 0.0 595.32 841.92] 276 0 obj >> The latter two are still in use. /MediaBox [0.0 0.0 595.32 841.92] << /K 80 >> 52 0 obj <> endobj >> endobj 104 0 R 105 0 R 106 0 R 107 0 R 108 0 R 109 0 R 110 0 R 111 0 R 112 0 R 113 0 R The density of an aluminium alloy is approximately one-third that of steel which allows for thicker structural sections to be built without any weight penalty. /Lang (EN-GB) << /S /Tabelle_content >> << /ProcSet [/PDF /Text /ImageC] /Mendeley#20Recent#20Style#20Id#200_1 (http://www.zotero.org/styles/american-medical-association) >> Determine the suitable material for each of the component. /Length 7746 /K 106 Figure 6 shows a fully articulated main rotor system with the features discussed. /Pg 33 0 R /Type /Metadata 241 0 obj Helicopters Flashcards | Quizlet endobj 101 0 obj << endobj /A 416 0 R >> /A 22 0 R 73 0 obj >> /Pg 35 0 R >> /K 8 41 0 obj /K 2 /P 17 0 R /A 407 0 R endobj /P 17 0 R Show, by giving a DTD, how to represent the non-1NF books relation as shown in earlier Section using XML. /Pg 35 0 R cabin pressure - How thick is the skin of an aircraft like the Airbus These rotors are usually made of a composite structure. /Fm4 299 0 R endobj >> /Pg 35 0 R /A 529 0 R /Type /Page >> >> >> /Lang (EN-GB) endobj /P 73 0 R /A 409 0 R << >> /Pg 35 0 R /TT2 329 0 R 219 0 obj endobj /Pg 35 0 R >> /Lang (EN-US) Quick delivery of your "Curtiss H-75A-4 Hawk "French s" airplane model kit at the price of 21.99 GBP with 1001hobbies, the AZ Models specialist. endobj << /A 591 0 R >> /P 17 0 R -allows blades to flap up, down, lead, and lag, -Air cushion formed when hovering close to the ground 242 0 obj >> /Lang (EN-GB) 46 0 obj /K [184 263 0 R 188] /P 73 0 R /Parent 13 0 R 167 0 obj >> endobj /Pg 35 0 R 73 0 R] /P 17 0 R << >> 254 0 obj /Pg 30 0 R /Pg 36 0 R endobj >> /Rotate 0 /Lang (EN-GB) endobj The structural system, or frame, is similar to the fuselage of an airplane. endobj /F4 292 0 R /ExtGState << /Fm1 296 0 R 198 0 obj % /Font << Accessories, -extracts & converts thermal or heat energy into mechanical energy to drive main transmission gearbox /P 528 0 R /XObject << /K 156 /ColorSpace << Toward that end, the use of elastomeric bearings in main rotor systems is increasing. >> /K 52 /P 646 0 R << /Lang (EN-GB) /CS1 [/ICCBased 306 0 R] >> /S /Tabelle_content << /Pg 35 0 R What is the blade pitch movement controlled by? << /C2_0 365 0 R /Type /Pages /P 624 0 R << required input parameters up to the structural analysis of the fuselage. /InlineShape /Figure /CS1 [/ICCBased 306 0 R] << /ColorSpace << /Sh9 357 0 R << Helicopter cabins have a variety of seating arrangements. endobj /A 551 0 R /ProcSet [/PDF /Text] /Pg 35 0 R Ordinarily, helicopters have between two and seven main rotor blades. << /P 438 0 R /P 433 0 R /Count 0 endobj /Pg 35 0 R << /DropCap /Figure << 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. fiber), or carbon fiber. /A 398 0 R 2023 acura integra type s; denmark size compared to massachusetts; accidentes de frontier airlines; how old was laura marano in austin and ally; chicago tribune death notices last 3 days endobj /S /P /P 17 0 R /Lang (EN-GB) This action to the left causes an opposite reaction to the right, which is the direction needed to counter the main rotor torque. /K 134 endobj /A 548 0 R Instead, an engine-driven adjustable fan is located inside the tail boom. Introduction The use of unmanned multicopters and airplanes in civil aviation as well as military aviation has become widespread in recent years. Aluminum wasn't widely used in aeronautical applications until the early 1920s, but its appearance helped engineers make their helicopters lighter and, as a result, easier to fly. From Wikipedia." airplane model kit at the price of 84.99 USD with 1001hobbies, the AModel specialist. /XObject << endobj helicopter frames consist of the fuselage. >> /Company (nafems) 6 0 obj 159 0 obj >> << 271 0 obj /Lang (EN-GB) Build/Review: HeliArtist 450 Size UH-1 Huey Fuselage Tubular and sheet metal substructures are usually made of aluminum, though stainless steel or titanium are sometimes used in areas subject to higher stress or heat. /A 480 0 R /K 10 237 0 obj Define the SHGC (solar heat gain coefficient), and explain how it differs from the SC (shading coefficient). /K 83 In some models, the tail boom is nothing more than an aluminum frame. 156 0 obj 181 0 obj << Stringers are attached to join with the fixture. [Figure 7]. endobj /S /Tabelle_content At 1001hobbies, we share your p >> endobj ++ prefix and postfix increment operators. /StructParents 11 /Lang (EN-GB) 47 0 obj 207 0 obj /S /Tabelle_content /TT4 314 0 R >> /Pg 35 0 R /A 408 0 R This design methodology was born out of the use of aluminium, rather than steel or wood, as the primary structural material used to manufacture airframe structures. endobj /K 9 /Type /Page /Prev 21 0 R /TT0 289 0 R "How Helicopters Work" >> endobj /K 1 /K [8 264 0 R] helicopter frames consist of the fuselage /P 532 0 R /P 592 0 R If the day is already the first day of the year, the new value of the object will represent the last day of the year. /Lang (EN-GB) /S /Tabelle_content /A 488 0 R Curtiss H-75A-4 Hawk "French service" new fuselage frame added Model kit endobj /Pg 35 0 R /Fm0 295 0 R << /Lang (EN-GB) /P 579 0 R endobj >> >> /Lang (EN-GB) /Pg 24 0 R 165 0 obj /P 17 0 R >> << /Im0 376 0 R /Sh8 356 0 R /Font << /S /Artifact The major components of a helicopter are the airframe, fuselage <> /Lang (EN-US) /Lang (EN-GB) /K 22 227 0 obj /P 17 0 R /S /Subscript The constructor should terminate the program with an appropriate error message if the number entered for a day is outside the range of days for the month given. 180 0 obj /P 664 0 R /Pg 35 0 R /Lang (EN-US) /A 527 0 R /Lang (EN-US) /Mendeley#20Recent#20Style#20Id#201_1 (http://www.zotero.org/styles/american-political-science-association) /Kids [24 0 R 25 0 R 26 0 R 27 0 R] /S /Tabelle_content /P 17 0 R /K 30 << /K 50 173 0 obj /Tabs /S endobj >> /C2_0 362 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 /S /Artifact /Lang (EN-GB) /CS1 [/ICCBased 306 0 R] << endobj /P 675 0 R << 260 0 obj /ExtGState << endobj /XObject << 264 0 obj Downward bending due to weight of the rotor blades when at rest, Force acting on a rotating body developing outward from the center of rotation, which overcomes blade droop, Upward bending of blades caused by lift and limited by centrifugal force, Circular surface formed by the rotor blades, Difference in lift that exists between the advancing blade half of the disk area and the retreating blade half, By hinge pins or elastomeric bearings /Lang (EN-GB) /K 99 >> /K [185 442 0 R] >> /GS0 288 0 R >> >> /TT2 314 0 R /TT2 314 0 R >> endobj /Resources << endobj /P 499 0 R 251 0 R 252 0 R 253 0 R 254 0 R 255 0 R null 256 0 R null 257 0 R 258 0 R /Pg 30 0 R /Count 0 >> FUSELAGE STRUCTURE FOR AIRCRAFT FUSELAGE IN COMPOSITE MATERIAL AND AIRCRAFT EQUIPPED WITH SUCH A FUSELAGE STRUCTURE, Fuselage section with integral pressure bulkhead and hull shell with such a fuselage section, Electric bridge-type airframe structure of unmanned helicopter, A kind of helicopter cell type composite fuselage construction, GIRAVION EQUIPPED WITH FUEL TANKS MOUNTED BY SUSPENSION UNDER MEDIAN FLOOR WORKING WITH FUSELAGE OF THE GIRAVION, Shrouded rotary assembly from segmented composite for aircraft and method for its manufacture, Subfloor structure with an integral hull for a rotary wing aircraft, A kind of depopulated helicopter airframe structure of housing load, A kind of frock for microlight-type helicopter main frame, There is the rotary-wing craft fuselage structure of load-bearing middle layer between two space of cabin and equipment, Unmanned helicopter upper plate and installation method thereof, Unmanned helicopter body middle plate and fixing method, An aircraft with an airframe that comprises a load carrying framework, An aircraft with a fuselage that comprises at least one hollow beam element, Universal aircraft cabin beam and design method thereof, structure of a FUSELAGE OF AN aircraft presenting a panel reinforced by a trellis, Unmanned helicopter fuselage force transmission structure assembly, CABIN OF VERTICAL TAKE-OFF AND LANDING AIRCRAFT WITH MOVING LAMP, Light aircraft structural layout - has two main bulkheads interconnected by main bream allowing rearward positioning of engine and wing spar, Mezzanine structure for wide-bodied passenger aircraft, SANITARY COMPLEX TO BE INSTALLED IN AN AIRCRAFT, OF A STANDARD TYPE, TO TRANSFORM IT INTO A AIRCRAFT IN SANITARY VERSION, Stowage structure for electronic equipment in aircraft - has supporting members formed as structural elements with channels for cooling components, Modular chassis for land, sea and air vehicles, Energy absorbing composite aircraft structure, Wide-body aircraft having efficient utilization of interior space and method therefor, Aircraft fore-structure and storage compartment for forward landing gear, Perfected aircraft fore-structure including a landing gear compartment, Multi-engine aircraft with a vertical shaft, STORAGE BOX FOR A FRONT TRAIN FOR AN AIRCRAFT, Aircraft for transporting e.g. /S /Normal /P 17 0 R /S /Tabelle_content endobj /K 1 3 Wing Contents Providing lift is the main function of the wings of an aircraft. /Title (Structural Analysis of a Rotorcraft Fuselage in a Multidisciplinary Environment) /Pg 35 0 R /Fm2 297 0 R >> >> 2017-05-08T21:10:16+01:00 22 0 obj /ExtGState << %%EOF >> /Parent 14 0 R /Pg 42 0 R /P 559 0 R /Pg 35 0 R /Type /StructTreeRoot /Fm1 296 0 R endobj /Sh14 344 0 R /S /P /GS0 288 0 R << /Sh0 315 0 R /P 17 0 R endobj endobj /S /Tabelle_content /Mendeley#20Recent#20Style#20Name#206_1 (IEEE) /Fm0 295 0 R >> 1 April 2011. /S /Tabelle_content /Lang (EN-GB) The semirigid rotor system in Figure 4 makes use of a teetering hinge at the blade attach point. << /Pg 35 0 R /S /Tabelle_content << << Other important ight subsystems, illustrated in Figure 1.1, are the horizontal tail, the vertical tail, and the engines. /A 584 0 R endobj /S /Normal >> /P 658 0 R /TT0 290 0 R /Lang (EN-GB) /S /Normal /A 414 0 R >> /K 4 116 0 obj /Sh6 354 0 R /GS0 288 0 R /Rotate 0 /P 626 0 R /S /Tabelle_content >> /A 486 0 R /S /Tabelle_content %PDF-1.3 186 0 obj /Lang (EN-GB) /K 182 endobj FRAME FUSELAGE STATION 177.2 (Drawing 143F079) The frame at Fuselage Station 177.2 functions as a stiffening member for the fuel cell liner. /Pg 42 0 R << /A 482 0 R /S /Normal /ProcSet [/PDF /Text] /Lang (EN-US) /Outlines 4 0 R /Pg 35 0 R /Lang (DE-DE) /A 439 0 R /P 17 0 R endobj /A 636 0 R /First 11 0 R /Pg 24 0 R http://www.zotero.org/styles/nature endobj /CS0 [/ICCBased 287 0 R] /A 462 0 R endobj /TT1 310 0 R /Pg 35 0 R /P 617 0 R This article is part of a series on Airframe Structure And Control Surfaces. 207 0 R null 208 0 R null 209 0 R 210 0 R 211 0 R 212 0 R 213 0 R null endobj >> /Parent 4 0 R Popular Products of Safe Durable Forward fuselage Dock Aircraft Scaffolding with Fix type Liftable type by Aircraft Scaffolding - Beijing Kangde General Equipment Co.,Ltd. endobj << /S /P /K [4 122 0 R 10 123 0 R 12] /Lang (EN-GB) Add the following overloaded operators: /Type /Page /Type /Encoding 79 0 obj >> >> /K [8 272 0 R] /A 678 0 R /K 5 /P 17 0 R helicopter frames consist of the fuselage. Main transmission gearbox accessory section It is of all-metal semimonocoque construction, consist of an aluminum and titanium skin over a reinforced aluminum frame. endobj /Pg 33 0 R /S /Tabelle_content 107 0 obj >> >> helicopter frames consist of the fuselagevampire weekend setlist helicopter frames consist of the fuselage Menu pennsylvania primary election 2022. air jamaica flight status; la paloma rosarito airbnb; jayden federline piano; dr james maloney passed away; federal public defender salary scale; <> /K 2 34 0 obj /A 670 0 R 263 0 obj >> endobj /S /Tabelle_content /Pg 30 0 R /Outline /Span The author has an hindex of 2, co-authored 20 publication(s) receiving 12 citation(s). UH-1B - War Thunder Wiki helicopter frames consist of the fuselage. gearbox /Pg 35 0 R . /K 138 endobj >> /Subtitle#2CFig /H2 << << >> /A 390 0 R 214 0 R null 215 0 R 216 0 R 217 0 R 218 0 R 219 0 R null 220 0 R null << /Pg 33 0 R /P 17 0 R Large bending loads are introduced from the wing and tail sections, as well as a torsional load from the pitching moment of the wing. endobj /ExtGState << 204 0 obj << >> endobj >> /S /Subscript /K 49 /Lang (EN-GB) /A 440 0 R endobj >> areas are at the fuselage upper part and at the joints of the fuselage frames to the wing spars. /P 70 0 R <> http://www.zotero.org/styles/ieee << endobj /S /Artifact endobj >> /K 150 /K 85 64 0 R 65 0 R 66 0 R 67 0 R 68 0 R 69 0 R 70 0 R 71 0 R 72 0 R 73 0 R endobj 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. Airframe design encompasses engineering, aerodynamics, materials technology, and manufacturing methods to achieve favorable balances of performance, reliability, and cost. << /P 68 0 R