Cool Air clues, I used to enjoy reading that and will again, hope you have finally sorted out the FOD issues, all the time I served the FOD collected posters always used to contain a 12 inch ruler, we / you must have been losing literally hundreds of them.
Glad to see you are looking at including older back issues, the types might have changed but the core knowledge they contain remains relevant, especially as some of the types are still in service, and lessons learnt by earlier generations may be unknown to the present incumbent's operating them.