Originally posted by jmccaul:
Could someone explain how to read the diagram, especially with respect to
e-retension.
Regarding e-retention, check the diagram below. I've included the curves of specific excess power (Ps). They indicate the rate of energy gain or energy loss in ft/s. You will notice that if you pull 6g in the old Aces High P-51 you would have bled energy at around 225ft/s that's the same as losing speed at the rate of ten knots every second. The 1.04 P-51 is better but I haven't quantified it yet.
I normally leave the other Ps curves off for clarity, and just show the Ps=0 curve because that gives you your sustained values. You only need to remember, flying above that line costs energy and the farther above it you go, the more rapidly the energy will be lost. Conversely, flying below the line allows you to accelerate, or climb while turning. Notice the Ps curve marked 20. That indicates that if you turn at about 1.5g, you can climb at the rate of 20ft/s or accelerate at a little less than two knots per second. Because I normally only show the Ps=0 curve, you just need to remember, the aircraft with the higher Ps=0 curve will sustain energy in the turns better than one with a lower Ps=0 curve.
P.S. any chance of an online comparison in the future AH, WB, FA2, WW2online(when released). (also B17-2 and il-2 would be intresting when released of course)
Hehehe, that's a tall order, I'd probably have to give up sleep, to get it all done before folk stopped playing the sim's
Badboy
