LEADER 00915nam a2200253 4500 001 991000844749707536 008 100910s2007 it 000 0 ita d 020 $a9788861370210 035 $ab13920649-39ule_inst 040 $aDip.to Scienze pedagogiche$bita 082 0 $a155.4124 100 $aMałti, Elisabetta$00 245 14$aUna fiaba per ogni perché /$cElisabetta Małti 260 $aGardolo, Trento :$bErickson$c2007 300 $a158 p. :$bill. ;$c15x24 cm 440 0$aCapire con il cuore 650 4$aFavole$xAspetti psicologici 700 $aBordoni, Federica 907 $a.b13920649$b02-04-14$c10-09-10 912 $a991000844749707536 945 $aLE022 155 MAU01.01$g1$i2022000131971$lle022$nLE022/PALOMBA/2010$op$pE15.50$q-$rl$s- $t0$u22$v3$w22$x0$y.i1516925x$z14-09-10 996 $aFiaba per ogni perché$9249523 997 $aUNISALENTO 998 $ale022$b10-09-10$cm$da $e-$fita$g $h4$i0 LEADER 05361nam 2200661Ia 450 001 9910784328803321 005 20200520144314.0 010 $a1-280-96648-3 010 $a9786610966486 010 $a0-08-047203-6 035 $a(CKB)1000000000350577 035 $a(EBL)288862 035 $a(OCoLC)476042621 035 $a(SSID)ssj0000105945 035 $a(PQKBManifestationID)11133380 035 $a(PQKBTitleCode)TC0000105945 035 $a(PQKBWorkID)10105812 035 $a(PQKB)11543800 035 $a(Au-PeEL)EBL288862 035 $a(CaPaEBR)ebr10169902 035 $a(CaONFJC)MIL96648 035 $a(MiAaPQ)EBC288862 035 $a(EXLCZ)991000000000350577 100 $a20040907d2004 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aArt of the helicopter$b[electronic resource] /$fJohn Watkinson 210 $aOxford ;$aBurlington, MA $cElsevier Butterworth-Heinemann$d2004 215 $a1 online resource (405 p.) 300 $aIncludes index. 311 $a0-7506-5715-4 327 $afront cover; copyright; table of contents; front matter; Preface; Acknowledgements; body; 1 Introduction to rotorcraft; 1.1 Applications of the helicopter; 1.2 A short technical helicopter history; 1.3 Types of rotorcraft; 1.4 Rotor configurations; 1.5 The essential elements; 1.6 The airframe; 1.7 Engine and transmission; 1.8 The fuel system; 1.9 The landing gear; 1.10 Oleos and ground resonance; 1.11 The rotors; 1.12 The control system; 1.13 Electrical and hydraulic system; 1.14 Instruments and avionics; 2 Technical background; 2.1 Introduction to mechanics; 2.2 Mass and density 327 $a2.3 Force and acceleration2.4 Strength and rigidity; 2.5 Resultants and components offorces; 2.6 Moments and couples; 2.7 Work,energy,power and momentum; 2.8 Efficiency; 2.9 Gases and the atmosphere; 2.10 Sound; 2.11 The mechanics ofoscillation; 2.12 The mechanics ofrotation; 2.13 Sidebands; 2.14 Fourier analysis; 2.15 Centrifugal and Coriolis forces; 2.16 Rotating masses and precession; 2.17 The gyroscope; 2.18 Piezo-electric and laser gyroscopes; 2.19 Feedback; 3 Introduction to helicopter dynamics; 3.1 Creating and controlling lift; 3.2 The centre of pressure; 3.3 The coefficient of lift 327 $a3.4 Collective control3.5 In the hover; 3.6 Forces on the blades; 3.7 Rotor coning; 3.8 Torque and thrust in rotors; 3.9 The rotor as an actuator; 3.10 Blade element theory; 3.11 Disc loading; 3.12 Figure of merit; 3.13 Blade twist and taper; 3.14 Swirl; 3.15 Vertical autorotation; 3.16 Tip loss and the vortex ring; 3.17Ground effect; 3.18 Cyclic control; 3.19 Basic manoeuvres; 3.20 In translational flight; 3.21 Inflow and coning roll; 3.22 Rotor H-force; 3.23 Blade stall and compressibility; 3.24 The speed limit; 3.25 Harmonic blade motion; 3.26 Sources of vibration; 3.27 Vibration control 327 $a3.28 Harmonic pitch control3.29 Blade design; 4 Rotors in practice; 4.1 Introduction; 4.2 Why articulated rotors are used; 4.3 Axes galore; 4.4 Flapping; 4.5 Droop stops; 4.6Introduction to dragging; 4.7 Order of hinges; 4.8 Types of rotor head; 4.9 Zero-offset heads; 4.10 Dangers of zero-offset heads -negative g; 4.11 Rotor response; 4.12 Feathering; 4.13 Pitch control; 4.14 Cyclic trim; 4.15 Tilting heads; 4.16 Dragging dynamics; 4.17 Ground resonance; 4.18 Air resonance; 4.19 Dynamic rollover; 4.20 Some rotor head examples; 4.21 Blade construction; 4.22 Blade tracking; 4.23 Blade folding 327 $a5 The tail5.1 Introduction; 5.2 Balancing the torque; 5.3 The conventional tail rotor; 5.4 Tail rotor location; 5.5 Tail rotor performance; 5.6 The tail plane; 5.7 The stabilator; 5.8 Fins; 5.9 The tail boom; 5.10 The fenestron; 5.11 NOTAR; 5.12 Tail rotor failure; 6 Engines and transmissions; 6.1 Introduction; 6.2 Choice of engine; 6.3 A piston-engine installation; 6.4 A turbine installation; 6.5 Correlators and governors; 6.6 The gasoline engine; 6.7 The ignition system; 6.8 The starter; 6.9 The oil system; 6.10 The carburettor; 6.11 Fuel injection; 6.12 The turbocharger 327 $a6.13 Gasoline engine instruments 330 $aThe modern helicopter is a sophisticated device which merges a surprising number of technologies together. This wide range of disciplines is one of the fascinations of the helicopter, but it is also makes a complete understanding difficult.Those searching for an understanding of the helicopter will find The Art of the Helicopter invaluable. John Watkinson approaches every subject associated with the helicopter from first principles and builds up in a clearly explained logical sequence using plain English and clear diagrams, avoiding unnecessary mathematics.Technical terms and 606 $aHelicopters 606 $aHelicopters$xAerodynamics 606 $aHelicopters$xControl systems 606 $aHelicopters$xElectric equipment 615 0$aHelicopters. 615 0$aHelicopters$xAerodynamics. 615 0$aHelicopters$xControl systems. 615 0$aHelicopters$xElectric equipment. 676 $a629.133352 700 $aWatkinson$b John$f1950-$0471352 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910784328803321 996 $aArt of the helicopter$91212901 997 $aUNINA