Snow and water "friction"
Results 1 to 4 of 4

Thread: Snow and water "friction"

  1. #1

    Snow and water "friction"

    One of the issues with dealing with float and ski planes is the mechanics of the fluid dynamics of both water and snow. Both allow far too little resistance on takeoff and landing. Snow tends to act like a packed snow/ice surface. In FSX given a slope a plane can accelerate and actually takeoff with no power because the surface is so slick. In reality snow has a lot of sliding resistance! It is so bad you cannot park a ski plane in FSX on any slope whatsoever.

    For float planes, the takeoff resistance is far too little and short takeoff runs are possible. It is particularly unrealistic on landing when the plane can go and go and go. Float planes can in reality decellerate very rapidly due to the drag properties of water.

    The question.... It was possible to modify the friction coefficent of dry pavement in the FS9 .cfg file, and possibilities of doing this for snow and water for FSX?

    Cheers: T

  2. #2
    Tom,

    it has been done for FS9 runways, unsure about FSX or snow and water.

    The module, a .dll in the Modules folder (possiby teh sim1.dll), that I cannot now recall was updated to improve stickiness of the runways.

    A Google search might yield the prize.
    Milton Shupe
    FS9/FSX Modeler Hack

    My Uploads at SOH - Here
    Video Tutorials - Gmax for Beginners

  3. #3
    Milton:

    I think I was first turned on to the runway friction idea by Tom Kohler when he was working on the B-29. FS9 had too high a dry friction value and he pointed to some fix for it which worked. I didn't find anything looking in the .cfg file, but you are probably right, so off to looking at modules!

    Cheers: Tom

  4. #4
    Hi Tom
    Yep the info is stored in the sim1.dll,I havnt seen much on it for fsx but there was a white paper on the subject on a German site(I think) somewhere for the fs9 sim1.dll.I personally couldnt make heads or tales of the info as I think some was lost in translation.
    I was thinking of tinkering with the ground effect table in the airfile to see if you could over come some of the stickiness of water but never got around to it.......yeah I think a lot
    Cheers
    Wozza
    The source code for Vista may very well be the longest suicide note in history

Similar Threads

  1. "Magic Town" & "El Negrito", a fast, dark horse!
    By fsxar177 in forum FSX General Discussion
    Replies: 4
    Last Post: July 11th, 2012, 13:12
  2. Replies: 88
    Last Post: April 15th, 2012, 17:41
  3. Question for the "Water dudes"
    By Rami in forum CFS2 General Discussion
    Replies: 3
    Last Post: April 14th, 2011, 16:51
  4. Replies: 0
    Last Post: February 23rd, 2011, 09:46
  5. snow "event" in Norcal
    By Daveroo in forum Ickie's NewsHawks
    Replies: 5
    Last Post: December 8th, 2009, 09:05

Members who have read this thread: 1

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •