8.1 Choice of engine. 58 8.2 Subsystems. 59 8.3 Hydraulics.… 59 8.4 Electrical system 60 8.5 Pneumatic/ECS system 60 8.6 Auxiliary/Emergency Power .60 8.7 Accessory Drives......... 62 8.8 Avionics.… 62 9 CONROL SYSTEM 63 9.1 Mechanical........... 63 9.2 Hydro-mechanical.............. 63 9.3 Artificial feel devices............. 64 9.4 Stick shaker........... 64 9.5 Fly-by-wire control systems. 65 10 PASSENGER CABIN LAYOUTS 66 10.1 Cabin layout............ 66 10.1.1 Vertical cross section design... 67 10.2 Horizontal Cross Section Design.... 69 10.2.1 Maximum passenger layout.... 69 10.2.2 Minimum passenger layout..... 71 11 NOISE CONTROL............... .75 11.1 introduction......... 75 11.2 The causes of sonic boom............ 75 11.3 The damage of sonic boom. 76 11.4 Measures.… 76 11.4.1 Boeing's plan 76 11.4.2 Lockheed Martin's plan 76 11.4.3 Our plan.… 77 12 ECONOMIC ANALYSIS 78 12.1 DOC Calculation... .785 8.1 Choice of engine.................................................................................................58 8.2 Subsystems.........................................................................................................59 8.3 Hydraulics ..........................................................................................................59 8.4 Electrical system ................................................................................................60 8.5 Pneumatic/ECS system ......................................................................................60 8.6 Auxiliary/Emergency Power..............................................................................60 8.7 Accessory Drives................................................................................................62 8.8 Avionics .............................................................................................................62 9 CONROL SYSTEM .................................................................................................63 9.1 Mechanical .........................................................................................................63 9.2 Hydro-mechanical ..............................................................................................63 9.3 Artificial feel devices.........................................................................................64 9.4 Stick shaker ........................................................................................................64 9.5 Fly-by-wire control systems...............................................................................65 10 PASSENGER CABIN LAYOUTS.........................................................................66 10.1 Cabin layout .....................................................................................................66 10.1.1 Vertical cross section design .....................................................................67 10. 2 Horizontal Cross Section Design ....................................................................69 10.2.1 Maximum passenger layout.......................................................................69 10.2.2 Minimum passenger layout .......................................................................71 11 NOISE CONTROL.................................................................................................75 11.1 introduction ......................................................................................................75 11.2 The causes of sonic boom ................................................................................75 11.3 The damage of sonic boom ..............................................................................76 11.4 Measures...........................................................................................................76 11.4.1 Boeing’s plan.............................................................................................76 11.4.2 Lockheed Martin’s plan.............................................................................76 11.4.3 Our plan .....................................................................................................77 12 ECONOMIC ANALYSIS ......................................................................................78 12.1 DOC Calculation..............................................................................................78