I'm a new poster.
I wish to applaud the Flight Archive, it is an excellent resource. The effort that went into it must have been enormous. I have already read many Flight magazine articles with interest. I used to subscribe to the magazine for a number of years in the 1960's. Thank you for trips down memory lane.
Out of interest I noticed that pages 78 & 79 from the 23 May 1963 Air Cushion Vehicles supplement seem to be missing (I believe they would be expected to be between 1148.PDF and 1149.PDF).