![]() |
|
FM/DM threads Everything about FM/DM in CoD |
|
Thread Tools | Display Modes |
#11
|
|||
|
|||
![]()
No Mig Sry but Mach nbr is the local mach, not the plane frwd speed.
At 15% thickness, the speed is in high subsonic when the plane is flying around 600kph. At this local speed, drag effects are not linear and raise sharply. Moreover, I think I was one of the first to put the dK/dt=SIGMA(P) eq around on forums. So don't nurse me with it. Thx in advance. Remind simply that this give only the max speed any increase of pow will give to a plane. At high speed, this is not linear. Generaly speeking: Incompressible theo apply only for M<0.3 Btw M0.3 to 0.8 effecst are sharp and results vary btw 6% to 100% Over 0.8, you hve shock waves and you need to apply according theo. Of course many guys rely only on incompressible, simply because they never really to get into the others case ![]() Last edited by TomcatViP; 10-18-2012 at 06:48 PM. |
|
|