747-400 747-400XER 747-400XS 747-500X 747-600X Dimensions: Length 231'10" 231'10" 255' 3" 251' 0" 278' 0" Wing Span 211' 5" 211' 5" 211' 5" 251' 0" 251' 0" Height 63' 8" 63' 8" 63' 8" 70' 0" 70' 0" Weight (lbs): Empty 403,559 420,000 430,000 450,000 480,000 Fuel 385,806 450,000 450,000 500,000 600,000 Payload 138,000 MTOW 870,000 921,700 948,150 1,166,225 1,200,000 MLW 585,000 620,000 635,000 875,000 890,000
Take-off speed@ MTOW:
ILS & Approach speed @ MLW:
When flying long routes (over 5hrs) with MTOW, climb to FL300 & hold Alt with cruise speed 0.80 - 0.81 Mach , then fly that level for 30-45 min. then climb to FL310 - 320 @500 fpm and so on until you reach FL350 @ 0.80 - 0.85 Mach
Try not exceed 91% N1 during cruise in order to have available thrust for emergencies & be more efficient with fuel burn. The reason I mentioned the above procedure with X-Plane is to avoid too much nose pitch up attitude which put the aircraft wing @ higher angle of attack causing speed bleed leading to a clean stall if you are not careful.
The time taken between cruise climb is important because the aircraft will burn fuel (losing weight), your speed will gradually increase @ the same N1 setting , your aircraft pitch up will decrease helping you for the next cruise climb. Rate of climb at these alts should be between 300-500 fpm in order not to lose speed rapidly. The more you climb to FL350 the more the air density is less the better the engine fuel consumption (more range)& the less is thrust.
I usually output data for N1 on the screen & switch the EICAS to fuel management to observe aircraft status on fuel burn & range.
You should carry fuel enough for the flight + 40mis for diversions & emergencies i.e. if your trip is 5 hrs long, you load fuel for the required 5hrs flight plus fuel for an extra 40 min. You should know your aircrafts average fuel consumption for the type of engines fitted with in order to determine the fuel weight required for the flight. Remember that weight is drag, drag is more fuel burn which costs money (for virtual pilots flying for virtual airlines :), so do not carry fuel more than you need. You have a destination to go to & MLW limit. You do not want to arrive to your destination with total weight above MLW!.
FAR Field Lengths
Take-off Check List
Final Landing Check List
During Descent Check
ROC Rate Of Climb
Below 10,000 ft
Above 10,000 ft to Cruise Flight Level FL
ROD Rate Of Descent
MLW = Maximum Landing Weight MTO = Maximum Take-off Weight V2 = Safe Climb-out speed (The speed after Vr, Rotation speed or Lift-off speed) Vat = Landing speed at runway threshold Flap/Gear down (X-Plane @ 50'...25'...10') Vapr= Approach Speed , just add 5-10kts to Vat with flap/gear down @ MLW or less Vno = Normal Operating Speed Vmo = Maximum Operating Speed Vne = Never Exceed Speed FL350 = Flight Level 35,000'