Hi Magdrop
The drop models I worked on were not radio controlled. The control surfaces were driven by small battery powered motors operated from a pre programmed timer. the timer switches were operated by cams. The model could even be put into a spin and recover. The final switch operated the parachute but occasioally the battery would have run out by then !!
Hi
The Concorde drop models I worked on were always painted matt black so they could be easily photographed from the ground.
The drop tests were usually held at Larkhill on Salisbury plain in the 60s
using Whirland helicopters. and filmed from the ground.
I wonder if those films still exist in some archive.
For me it has to be a Sunderland. As a kid in WW2 I watched them come and go from lough erne in Northern Ireland.What a record they had on the long Atlantic patrols and even as airliners post war.
Paddy R