GG, lol!
Hi chiko Roll,
I am not certain but I beleive it may be a stall/spin chute, they generally carry them on initial testing flights of large aircraft. If the aircraft enters an unrecoverable stall or spin/ flat spin (or all of them!) that little drag chute can pull out a bigger chute and it causes the aircraft to pitch nose down once it deploys. Once stabilised the crew can then jettison the chute and hopefully then recover from the dive. It's a last defence option of course if the plane behaves badly during stall testing or other manouveres. Or it could just be a chute with instruments to measure possibly turbulent airflow or pressure behind the aircraft. Thats my understanding I read about them ages ago, so if anyone has further info I stand to be corrected!
