Jump to content

Sign in to follow this  

Question to better understand Fuel load planning 747

Recommended Posts

HII'm checking how much fuel to load on a long haul flight, and I pretty much figured out my distance and checked in the NM section to see how much fuel to board. Now seeing I also would have step climbs which altitude is the right one? My initial climb is the one I board fuel for, does it mean the extra fuel is burned to get you to the other altitude? The higher one flies the less you burn, so, for 4400 NM fuel to board at FL 410/479 is 186.0 lbs but at FL 310/488 210.6 lbs but 15 mins is saved in time. Now there is a big difference in fuel approx 25 000 lbs of difference. What and how do you decide this factor of altitude in a step climb flight and when the time is not so much an issue, to know how much your load should be?I've done many many flights but would like to know the real answer to this that it has bugged me everytime I prepare a flight.Thanks guys.

Share this post

Link to post

Did everyone stop flying the 747, again how much fuel would you board in a step climb flight, do you take your initial altitude or your true cruise altitude?

Share this post

Link to post

helloon a flight trip with step climbs include there s not way to check for more fuel...on the other hand if you need extra climb for a 4000' you need 500 to 650 lbs depending on gross weight .... so each time this is amount you need ...but being closer to opt alt save you also a lot ...4000' below opt alt is 5% fuel burn more ...so the little extra fuel need to climb is saved so quickly ... if you have more than 30 minutes to fly this is the best to followsee you

Share this post

Link to post

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  
  • Tom Allensworth,
    Founder of AVSIM Online

  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
  • Donation Goals

    AVSIM's 2020 Fundraising Goal

    Donate to our annual general fundraising goal. This donation keeps our doors open and providing you service 24 x 7 x 365. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. We reset this goal every new year for the following year's goal.

    $705.00 of $25,000.00 Donate Now
  • Create New...