Rubuta ci gaba ga wannan sakin layi - Unwin ya kasance a cikin RAF bayan yakin kuma ya canza zuwa Bristol Brigand jirgin sama a 1948. Ya yi amfani da irin wannan jirgin a lokacin yakin Malaya.
a shekarar 1952 kuma an ba shi lambar yabo ta musamman don kokarinsa. Ya yi ritaya daga RAF a shekarar 1961 a matsayin kwamandan kwando.