The takeoff segment starts at 45 seconds. At about the 1:06 or 1:07 mark, about 10 seconds after liftoff, there's what looks like a small puff of smoke. At first I thought it was from the engines (both engines simultaneously), but on looking at it again it might be inboard of the engines.
apfpilot From United States of America, joined Jun 2013, 297 posts, RR: 0
Reply 4, posted (1 year 10 months 1 day 15 hours ago) and read 3438 times:
In some aircraft when the gear is selected up and is retracting the brakes are applied momentarily to stop the wheels from spinning which is what you are seeing here. On other aircraft like the 737 there are rub strips in the gear well that accomplish the same thing.
Opinions are my own and do not reflect an endorsement or position of my employer.