Announcement

Collapse
No announcement yet.

14,000 Ft. Runways

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • 14,000 Ft. Runways

    General question to Bobby/ATL/Dummy:

    Is there a commercial aircraft around that would need a 14,000 ft runway for normal operations?

    Trying to figure out why they exist at a lot of airports...(and let's leave Denver out of it- some freighter to Australia with full tanks and 110 degree temperatures, maybe...but what about low places like ORD, DFW...

    The 747-Space Shuttle Piggy Back rig came to Flyover a few times in it's history- we have a 12,000 footer- not sure if it had to use that runway or not and I imagine it might not have needed all that much fuel.

    How often does an 8000 ft runway limit commercial operations?...9000 ft?
    Les règles de l'aviation de base découragent de longues périodes de dur tirer vers le haut.

  • #2
    At MTOW, the 747-8 (not to be confused with the 747-800) requires about 14,000ft take-off distance (accelerate-stop) at ISA + 35°C (Or on a standard day at 6000'+ field elevation).
    And that is for dry conditions with 0 winds.

    Maybe they are preparing us for the global warming. Sometimes people do think ahead.

    Comment


    • #3
      Originally posted by Evan View Post
      At MTOW, the 747-8 (not to be confused with the 747-800) requires about 14,000ft take-off distance (accelerate-stop) at ISA + 35°C (Or on a standard day at 6000'+ field elevation).
      And that is for dry conditions with 0 winds.

      Maybe they are preparing us for the global warming. Sometimes people do think ahead.

      Thank you.

      Comment


      • #4
        Originally posted by BoeingBobby View Post
        Thank you.
        Crummy take off performance!

        They need to take those 777 motors and swap them out on the 747-800.

        Then they could get 900,000 lbs off the ground on a regular runway.

        The scalloped ducts would also make it look more modern and make up for the Fowler flaps.
        Les règles de l'aviation de base découragent de longues périodes de dur tirer vers le haut.

        Comment


        • #5
          Originally posted by 3WE View Post
          Crummy take off performance!

          They need to take those 777 motors and swap them out on the 747-800.

          Then they could get 900,000 lbs off the ground on a regular runway.

          The scalloped ducts would also make it look more modern and make up for the Fowler flaps.
          The 747-8 already has the scalloped "ducts" exhaust fairings on it. Also the 777 engine was originally tested on the 74. Not much ground clearance. https://www.youtube.com/watch?v=NYYXoy7xbik

          Comment


          • #6
            https://www.google.com/imgres?imgurl..._B0wH3oECAgQFA

            Comment


            • #7
              Originally posted by BoeingBobby View Post
              Also the 777 engine was originally tested on the 74.
              As an engine testbed for the 777, not with the intention of ever using it on the 747. Still, quite a sight.

              Comment

              Working...
              X