Unusual A 340 departure
As a very regular passenger I've got a good idea of what constitutes a "normal" takeoff sensation. What I experienced last week was a long way from that so I'd appreciate any logical explanations from the community.
It was a daytime, sea-level departure in an A 340. Wind was light / variable, temp 23C, runway 4000m-plus. The aircraft had a full passenger load but the flight was less than 3000km (so probably no-where near close to max weight). I don't believe the area is noise-sensitive.
The takeoff run appeared leisurely (nothing unusual for an A 340) but shortly after rotation there was about 10 seconds of severe vibration / rattling that really was most disconcerting and unlike anything I've ever experienced. There was no discernible pitch change and the climb rate looked normal. I was in row 32 so not close to a galley area (i.e it's unlikely to have been loose food containers etc.). Once it stopped there was no recurrence and the rest of the flight was normal.
Any ideas?