Hmmmn.
Only high speed drones I know of used over China in the 1960’s were the SR-71/A-2/A-12 body-plan single-engine “duplicates” built by Lockheed to fly from the SR-71, then return and be recovered.
Didn’t work too well, but nothing more significant than the usual teething troubles of the time for actual flight.
But recovery? Didn’t have to analog power to do it at the time. Several still exist - 2,3 perhaps?
Thx.