[RNAS Pilots] Squadron Commander (over eight years' seniority) [RNAS Observers] Squadron Observer (over eight years' seniority) [RN Ranks] 
Lieutenant-Commander
S u b - L i e u t e n a n t
L i e u t e n a n t
L i e u t e n a n t - C o m m a n d e r
C o m m a n d e r
C a p t a i n