The posky aircraft isn't particularly well modelled in my opinion when it comes to taking off. I can race down the runway, with the tail one foot above the runway, wings fully flexed, travelling 160+ knots and still not get off the ground (don't need to tell me about weights and fuel please wink.gif ) And then soon as it does get off the ground, it races up to 250 knots in a heart beat. Little wonder I moved on the the PMDG
I shant tell you about fuel and payload, but can I mention trim?

hehe j/k, poskys fualt they are good at exterior visuals, nothing else

even the tail strick effect is prety weak, if ya strike in there 330 youl no about it thow, not a hope of continuing flight, the aircraft flips on its back! haha
Also beaware of tail stricks on landing.. it can be quite a problem, especcialy in larger aircraft such as a 767, but if everythign is okay you shodul be able to flare to about 3 degress and touch down nicely..