Reading the 737 FCTM it states
Flight test and analysis prove that the change in takeoff roll distance due to the rolling takeoff procedure is negligible when compared to a standing takeoff.
I was wondering if anyone has any knowledge of what a ‘rolling takeoff’ actually is in this context? For example, if you have a 90 degree line-up, are they saying that the ‘square turn’ to align with the runway followed by being stationary when pressing TOGA provides negligible advantage to simply rolling out onto the runway at 8kts with 40% set and pressing TOGA 50 or 60 m further down the runway?