I think the pilot is Robin Cross-Upcott (spelling?)
The photos date from summer 1986 at the latest probably a lot earlier than that.
The CAA have G-AVKX as crashed 9/7/1980 which makes sense as the last recorded hours for the aircraft are 31/12/1979
The first aircraft is configured for load lifting not spraying. Probably either G-BBLA-BBLE one of several in that registration block.
I last saw Robin about 1990 ferrying a Hiller 12E at Humberside.
Nice guy ex WW2 Spitfire pilot.
Last edited by ericferret; 8th Jun 2020 at 21:10.