744 rotation vibration
Hi,
Last month I made a few trips on Qantas 744's. This only happened on one of the flights. Departing Singapore for Sydney, immediately after rotation and lift-off the aircraft began to vibrate. Not violently, but it was a notable vibration and a few over-head bins opened due to it. A few passengers gasped, one women screamed "oh my god" (there's always a screamer!). It lasted about 10-15 seconds. After that, the flight smoothed out the CC were soon after released to start the service.
No explanation from the flight Crew. I didn't think it warranted explanation but I heard lots of passengers asking the CC what had happened - they didn't know.
I was sitting over the wing, so my assumption was - it was the wheels braking as they rotated into the undercarriage bay. I couldn't think of anything else (I’m not a pilot). The only thing is I've flown on many 744's, and sat in similar locations on the plane, and have never experienced this before.
Can anyone else offer alternative explanations?
Cheers,
eP.