I am resurrecting this post in the hope that some readers may have an interesting story or two to tell about stalling large aircraft
On 3/8/83 I was the FO on an air test on B747-136 G-AWNB. We got permission to enter the Portland danger area where we carried out a full stall. Apart from the rather large height loss, the stall was easily recoverable, with no wing drop. However the intense buffeting was most uncomfortable. It was totally impossible to read the instruments. I felt sorry for the engineer on the jump seat trying to read the IAS.
Fortunately, shortly afterwards, the CAA removed the requirement for a full stall on air tests.