[QUOTE=pletby;261518]Fighter jets flying in circles to gain speed? Argh. Ignore whoever you 'heard' that from. They can gain speed by using gravity (diving) or increasing throttle, but certainly not from turning. That's an awesome way to scrub off speed and slow down!
I have a similar post on cleanMPG and someone there posted a nice explanation, with illustration, of how that works out. I probably failed to communicate the concept properly. I don't want to repost it, in fear of looking like I'm trying to take credit for something I did not think of.
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