One thing you hadn't counted on was the hotter than normal air that your engines were sucking in. The efficiency of your engines is less than you predicted, because the hot exhausts from those up front have degraded your engine performance. That means that you'll take more distance to get to flying speed. But there's no time to explain. The aircraft just ahead has blown a tire, or maybe more than one.
Rubber begins to scatter everywhere and the number three bomber begins to weave left and right.
You can sense the tension and anxiety in his usually calm and deliberate voice. We're going anyway, boys. It's going to be bumpy, so hang on. The number three plane has suddenly veered off to the left of the runway, quickly slowing down as he tears into the grass. Your plane whizzes on by, continuing down the runway and accelerating for takeoff.