https://mt-milcom.blogspot.com/2011/08/osacom-aircraft-typesbasing.html
Milcom Monitoring Post: OSACOM Aircraft Types/Basing
The following is a list of aircraft types assigned to various base/units that fly OSA missions. Small Aircraft: C-12, C-21 C-38, UC-35 Large...
aircraft typesmilcommonitoringpostbasing
https://api.parliament.uk/historic-hansard/written-answers/1947/may/19/british-air-lines-aircraft-types
BRITISH AIR LINES (AIRCRAFT TYPES) (Hansard, 19 May 1947)
BRITISH AIR LINES (AIRCRAFT TYPES) (Hansard, 19 May 1947)
air linesaircraft typesbritishhansardmay