In case anybody is unaware this is part of a collection that the RAeS is steadily expanding. I downloaded a load a little while ago and haven't actually got to Davies yet, but have thoroughly enjoyed several others. I just finished a 2-parter with John Morton on testing early British and American helicopters, and particularly found Harald Penrose fascinating on his recollection of knowing early British aviation pioneers, and took some interesting technical lessons from Keith Dennison on the eGo.
https://www.aerosociety.com/events/c...audio-archive/
An interview with Barnes Wallis has just appeared in the last few weeks, which I've not got to, but fully expect it to be absolutely fascinating too !
G