Facts: - death date: 5 february 1918 - allegiance: united kingdom - rank: flight sub-lieutenant - placeofburial: st. de calais , france mary 's a.d.s cemetery , haisnes , pas - awards: distinguished service cross - birth date: 17 april 1897 - serviceyears: 1917 -- 1918 - name: harold day - branch: royal navy - unit: no. 10 squadron rnas no. 8 squadron rnas - death place: vicinity of harnes , france - birth place: abergavenny , wales Based on these bullet points, write a short biography describing the life of harold day -lrb- royal navy officer -rrb- .
The answer to this question is:
flight sub-lieutenant harold day -lrb- 17 april 1897 -- 5 february 1918 -rrb- was a welsh world war i flying ace credited with 11 confirmed aerial victories .