Quote:
Originally Posted by ramira18
wowowow step 3 there! I didnt think ya had to do that, you just use what atis throws at ya?
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you might be leaving people behind that could have gone, had you done it correctly.... or worse... you could be overweight and not know it:
we were at a high altitude airport with an LR, and it was pretty warm out. luckily the pressure was pretty high, so that gave us a 4 degree "drop" for the performance data, and that made a BIG difference in the climb limit, and we could get everyone on (not 50, but all 46 they had booked) had we not taken the credit for the pressure, we would have had to leave people behind (due to missing this step, would have been restricted to about 42).
other way around. lets say that same airport. climb limit is 47000 at 22C. but lets say the pressure is low, and you have to add 4 degrees, now at 26C the climb limit is 44000. you miss that step. you end up weighing 46990 lbs, so you think all is well. I hope an engine doesn't pop at V1.