My dad flew the 707 and a couple of times when the starter was inop, they could do a highspeed run to get the blades spinning and start the engine. He said it wasn't the greatest idea but most of the time it worked. I watched John Travolta do a highspeed run and then return for takeoff in Wilmington NC. a couple of years ago and the tower said he was starting the engine. It didn't make much sense until I was telling my dad about it and he said they did it a few times.
Could the flame from the engine be when he introduced fuel? Some modern jets blow some flame at light off.
Could the flame from the engine be when he introduced fuel? Some modern jets blow some flame at light off.