The second issue revolves about the rank of Aircraftman (and LAC and SAC) which officially applies to women too - I believe their rank is not, bizarrely Aircraftwoman
The term man is not gender specific - “What a piece of work is man!” In Hamlet applies equally, as does mankind and manslaughter.
I always thought the trend to use terms such as chairperson was manifestly silly, as with attempts to eliminate the use of term as a prefix or suffix b6 those ignorant of the etymology.
https://www.etymonline.com/word/man
"a featherless plantigrade biped mammal of the genus Homo" [Century Dictionary], Old English man, mann "human being, person (male or female).