Originally Posted by
Ex-Brazilian
At least at my previous airline, where I flew the NG 700/800, a old instructor told me that on every takeoff we were taking off with plus 1 unit of forward trim, and that was to prevent tail strike, he said. He even showed me a page on the DFDAU showing the actual position of every flight control surface, and he proved me that the actual trim position was always exactly 1.0 unit forward compared to the wheel trim that we usually use to set the T/O trim.
This sounds bizarre to me, why wouldn't they just make the performance data tell you to set the correct trim, instead of lying to you by 1 unit, and then having the indicator lie to you by one unit the other way?
Paging Nigel Tufnel...
"Ours goes 1 unit forward..."