Lift to Drag Ratios Compared

[AndyJWest]

Originally Posted by JG27_PapaFly

Ground effect is a decrease in induced drag and only relevant in very low-level flight up to an altitude equaling about the plane's wingspan. BTW i've specifically tested whether ground effect is present in IL2FB some time ago, the results were a clear no. Which is OK, the effect is not THAT big or relevant in RL except during flareout. No, i stand by my experimental setup, it's clean.

Ground effect is modelled, in IL-2 '46, and can be measured. One of the TD team confirmed it was in the 4.09 code, and I did extensive testing using my prototype autopilot setup (though you can demonstrate it without): There is a long thread on the subject over at the Ubi forum: http://forums.ubi.com/eve/forums/a/t...458#3121062458. Note that there seem to be two different 'ground effects' modelled - a 'true' effect that only kicks in at about half-wingspan and below, and a rather curious terrain and time related effect that seems to only occur with the 'wind and turbulence' on (even in calm weather). I think the conclusion we reached about the 'true' effect was that it didn't work in quite the way it should, but was definitely there. Whether 4.10 has been altered in this regard, I don't know, though I believe it was discussed.