Originally Posted by 80ktsClamp

We call it TDU on the fifi fleet... does it default to line 2 for the runway desired for yall? I've found that typically gives a couple thousand pounds of pad on the weights, and the process saves me 25-30 key strokes.

My technique to keep engaged: I press print, write down pax and zfw directly from the acars screen, then go straight to the perf page, verify the correct ZFW (and ZFWCG on fifi) and calculate current actual weight. I write that down- by that time the printer is finally finished, I glance at the weights on line 2 for the desired runway, make sure that's good and dive over to the TDU and insert it. That way all the info is in, I've reviewed it, and the data is ready and waiting for the captain to verify it.