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Boeing 777: Difference between revisions
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The '''Boeing 777''' is a long-range, wide-body twin-engine airliner built by Boeing Commercial Airplanes. The world's largest twinjet and commonly referred to as the "Triple Seven", it can carry between 283 and 368 passengers in a three-class configuration and has a range from 5,235 to 9,450 [[nautical mile]]s (9,695 to 17,500 km). Distinguishing features of the 777 include the six wheels on each main landing gear, its circular fuselage cross section, the largest diameter turbofan engines of any aircraft, the pronounced "neck" aft of the flight deck, and the blade-like tail cone. | The '''Boeing 777''' is a long-range, wide-body twin-engine airliner built by Boeing Commercial Airplanes. The world's largest twinjet and commonly referred to as the "Triple Seven", it can carry between 283 and 368 passengers in a three-class configuration and has a range from 5,235 to 9,450 [[nautical mile]]s (9,695 to 17,500 km). Distinguishing features of the 777 include the six wheels on each main landing gear, its circular fuselage cross section, the largest diameter turbofan engines of any aircraft, the pronounced "neck" aft of the flight deck, and the blade-like tail cone. | ||
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== Systems == | == Systems == | ||
The Boeing 777 is an advanced fly-by-wire aircraft, and the systems are moderately complicated. | The Boeing 777 is an advanced fly-by-wire aircraft, and the systems are moderately complicated. | ||
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=== Engines === | === Engines === | ||
{{aero-stub|section=1}} | {{aero-stub|section=1}} | ||
{| class="wikitable" | |||
|- | |||
! Model | |||
! 777-200 !! 777-200ER !! 777-200LR !! 777F !! 777-300 !! 777-300ER | |||
|- | |||
! Engines (Turbofans) | |||
| [https://en.wikipedia.org/wiki/Pratt_%26_Whitney_PW4000 PW 4077] [https://en.wikipedia.org/wiki/Rolls-Royce_Trent_800 RR 877] [https://en.wikipedia.org/wiki/General_Electric_GE90 GE90-77B] || PW 4090 RR 895 GE90-94B || GE90-110B1 GE90-115B1 || GE90-110B1 GE90-115B1 || PW 4098 RR 892 GE90-92B/-94B || GE90-115B1 | |||
|- | |||
! Max Thrust | |||
| 77,200 lbf (343 kN) || 84,700 lbf (377 kN) || 115,300 lbf (513 kN) || 115,300 lbf (513 kN) || 98,000 lbf (440 kN) || 115,300 lbf (513 kN) | |||
|} | |||
=== Electrical === | === Electrical === | ||
{{aero-stub|section=1}} | {{aero-stub|section=1}} | ||
=== Hydraulic === | === Hydraulic === | ||
The current Boeing 777 hydraulic system is basically working, it will be expanded in the future for more realistic behavior. | |||
The hydraulic systems can (and must) be fully controlled via the 3D cockpit switches on the overhead panel. As in real life, the following behavior should be expected: | |||
* The Left hydraulic system is powered by an engine driven pump (EDP) and supplemented by two on-demand Electric motor pumps (ACMP). It operates wing & tail flight controls (ailerons, elevators, rudder) and left thrust reverser operation. | |||
* The Right system is powered by by an EDP from the right engine and supplemented by an ACMP. It operates flight controls, right thrust reverser operation and the normal brake system. | |||
* The Center system is powered by two ACMP's and supplemented by two on-demand air turbine-driven pumps (ADP). It operates the landing gear actuation, nose & main gear steering, flaps & slats, flight controls and the reserve brake system. | |||
When no engine is running, the APU (if running) and/or Ground Power (if connected and activated) provide power to the center system's ACMP's. Make sure the ACMP's are on when you want to use the center system on APU/Ground Power. | |||
A realistic Ram Air Turbine (RAT) and reserve system have yet to be modeled. | |||
=== Autopilot === | === Autopilot === | ||
[[File:777-300-APpanel.png|thumb|270px|777-300 Autopilot]] | [[File:777-300-APpanel.png|thumb|270px|777-300 Autopilot]] | ||
The 777 autopilot can be fully controlled using the 3D cockpit switches. For FG2.4.0 use left and middle mouse buttons to turn any switches left/right. For FG2.5.0 and newer, you can use the mouse scroll wheel on all cockpit knobs.An Autoland system is | The 777 autopilot can be fully controlled using the 3D cockpit switches. For FG2.4.0 use left and middle mouse buttons to turn any switches left/right. For FG2.5.0 and newer, you can use the mouse scroll wheel on all cockpit knobs.An Autoland system is available as of v2.6.0 | ||
You can also use the 777's built-in autopilot tutorial to learn about the different switches. | You can also use the 777's built-in autopilot tutorial to learn about the different switches. | ||
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* '''IAS <> MACH''' - Switch between IAS speed mode and Mach number speed mode | * '''IAS <> MACH''' - Switch between IAS speed mode and Mach number speed mode | ||
* '''IAS window''' - Set your desired IAS speed or Mach speed here | * '''IAS window''' - Set your desired IAS speed or Mach speed here | ||
* '''LNAV''' - Tells the autopilot to follow the Route Manager settings laterally (control the heading) | * '''LNAV''' - Tells the autopilot to follow the Route Manager settings laterally (control the heading). | ||
* '''VNAV''' - Same as LNAV, except vertically (control the altitude) | * '''VNAV''' - Same as LNAV, except vertically (control the altitude). The autopilot will climb to the flight level you set in the Route Manager (in the input field or at a specified waypoint). | ||
* '''FLCH''' - Flight Level Change, set the altitude and press FLCH to climb or descent to designated flight level. | * '''FLCH''' - Flight Level Change, set the altitude and press FLCH to climb or descent to designated flight level. Thrust is set to a fixed value, speed is controled with pitch. | ||
* '''A/P DISENGAGE''' - Dedicated autopilot disengage button (click twice). It serves as an easy to reach "emergency disengage" button. | * '''A/P DISENGAGE''' - Dedicated autopilot disengage button (click twice). It serves as an easy to reach "emergency disengage" button. | ||
* '''HDG <> TRK''' - Switch between heading bug and course track | * '''HDG <> TRK''' - Switch between heading bug and course track | ||
* '''HDG window''' - Set your desired heading or course track here. | * '''HDG window''' - Set your desired heading or course track here. | ||
* '''HDG select''' - Engage/disengage heading or course hold mode and maintain SELECTED heading (FG2.5.0 and newer). | * '''HDG select''' - Engage/disengage heading or course hold mode and maintain SELECTED heading (FG2.5.0 and newer). | ||
* '''Bank limits''' (AUTO/5/25) - Define banking limits for turning, i.e. 5 for gentle turns at cruising altitude, 25 for good maneuverability at lower speeds; auto will be fine in most cases. | * '''Bank limits''' (AUTO/5/10/15/20/25) - Define banking limits for turning, i.e. 5 for gentle turns at cruising altitude, 25 for good maneuverability at lower speeds; auto will be fine in most cases. | ||
* '''HOLD''' - Engage/disengage heading or course hold mode and maintain CURRENT aircraft heading. | * '''HOLD''' - Engage/disengage heading or course hold mode and maintain CURRENT aircraft heading. | ||
* '''V/S <> FPA''' - Switch between Vertical Speed and Flight Path Angle | * '''V/S <> FPA''' - Switch between Vertical Speed and Flight Path Angle | ||
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* '''Default mode of when autopilot engage''' | * '''Default mode of when autopilot engage''' | ||
HDG HOLD mode: Maintain heading when engage. | HDG HOLD mode: Maintain heading when engage. | ||
ATT mode: If bank angle exceeds 5deg when | ATT mode: If bank angle exceeds 5deg when engaged, keep that bank angle. (there's bug, will be fixed) | ||
VS mode: using vs value when | VS mode: using vs value when engaged. | ||
If FD mode was engaged, mode is inherited. | If FD mode was engaged, mode is inherited. | ||
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==Aircraft Help== | ==Aircraft Help== | ||
=== Start Procedure (Fast)=== | === Start Procedure (Fast)=== | ||
* Go to Equipment > Fuel and Payload and set your fuel amounts and make sure your tanks are selected | * Go to Equipment > Fuel and Payload and set your fuel amounts and make sure your tanks are selected | ||
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== Variants == | == Variants == | ||
===Boeing 777-200=== | ===Boeing 777-200=== | ||
[[File:COA777.jpg|thumb|270px|[[Boeing 777-200]] in Continental livery]] | |||
The '''Boeing 777-200''' ('''772A''') was the initial A-market model of the [[Boeing 777]]. The first customer delivery was to United Airlines in May 1995. It is available with a maximum take-off weight (MTOW) from 505,000 to 545,000 pounds (229 to 247 tonnes) and range capability between 3,780 and 5,235 nautical miles (7,000 to 9,695 km). | The '''Boeing 777-200''' ('''772A''') was the initial A-market model of the [[Boeing 777]]. The first customer delivery was to United Airlines in May 1995. It is available with a maximum take-off weight (MTOW) from 505,000 to 545,000 pounds (229 to 247 tonnes) and range capability between 3,780 and 5,235 nautical miles (7,000 to 9,695 km). | ||
===Boeing 777-200LR=== | ===Boeing 777-200LR=== | ||
[[File:777-200LR Alaska.jpg|270px||thumb|777-200LR in CathayPacific Colors above Alaska]] | |||
The '''Boeing 777-200LR''' ("LR" for Longer Range), a variant of the [[Boeing 777]], became the world's longest-range commercial [[airliner]] when it entered service in 2006. Boeing named this aircraft the ''Worldliner'', highlighting its ability to connect almost any two airports in the world. It holds the world record for the longest nonstop flight by a commercial airliner, and has a maximum range of 9,380 nautical miles (17,370 km). The 777.200LR was intended for ultra-long-haul routes such as Los Angeles to Singapore.<ref>[http://en.wikipedia.org/wiki/Boeing_777 Boeing 777] (Wikipedia)</ref> | The '''Boeing 777-200LR''' ("LR" for Longer Range), a variant of the [[Boeing 777]], became the world's longest-range commercial [[airliner]] when it entered service in 2006. Boeing named this aircraft the ''Worldliner'', highlighting its ability to connect almost any two airports in the world. It holds the world record for the longest nonstop flight by a commercial airliner, and has a maximum range of 9,380 nautical miles (17,370 km). The 777.200LR was intended for ultra-long-haul routes such as Los Angeles to Singapore.<ref>[http://en.wikipedia.org/wiki/Boeing_777 Boeing 777] (Wikipedia)</ref> | ||
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===Boeing 777-F=== | ===Boeing 777-F=== | ||
[[File:777F.png|270px||thumb|777-F]] | |||
The 777 Freighter (777F) is an all-cargo version of the twinjet, and shares features with the -200LR; these include its airframe, engines, and fuel capacity. With a maximum payload of 226,000 lb (103,000 kg), cargo capacity is similar to the 243,000 lb (110,000 kg) of the 747-200F. The freighter has a range of 4,900 nmi (9,070 km) at maximum payload, although greater range is possible if less cargo weight is carried. As the aircraft promises improved operating economics compared to existing freighters, airlines have targeted the 777F as a replacement for older freighters including the [[747-200]]F and [[MD-11]]F. | The 777 Freighter (777F) is an all-cargo version of the twinjet, and shares features with the -200LR; these include its airframe, engines, and fuel capacity. With a maximum payload of 226,000 lb (103,000 kg), cargo capacity is similar to the 243,000 lb (110,000 kg) of the 747-200F. The freighter has a range of 4,900 nmi (9,070 km) at maximum payload, although greater range is possible if less cargo weight is carried. As the aircraft promises improved operating economics compared to existing freighters, airlines have targeted the 777F as a replacement for older freighters including the [[747-200]]F and [[MD-11]]F. | ||
The 777 for Flightgear is based on [[777-200]] developed by Justin Smithies, Syd Adams. | The 777 for Flightgear is based on [[777-200]] developed by Justin Smithies, Syd Adams. | ||