Hi Ian,
Last issue of the Revi magazine has my comprehensive article about first tipping of the V-1 made by Collier ! There is an internet version without a lot of photographs, profiles and sheets on
http://www.revi.cz/cz/revi/65_1.html too.
I you want I can send you PDF files of printed version. It has about 8MB.
Regards,
Michal