Originally Posted by
3wheels
From what I can see wing appears to be clean, both the no-step markings and the registration is clearly visible.
However the F100 is indeed very sensitive to icing, with no leading edge devices. Flaps seem to be set to zero, which IS a legal t/o setting on the F70/100 series.
Failure to gain altitude ultimately boils down to either wings not producing enough lift (ice?), or engines not producing enough thrust.