Dear Willy,
*From the little I know, concerning the RFC, there was no leave rotation; you flew until you couldn't fly anymore, by which time it was either fatigue or exhaustion or both, which either grounded you or accounted for your demise...
*It seems you had to earn whatever leave you got; wasn't that the case with Capt. Ball? When, in 1916, he felt that he had had either 'enough' or deserved some sort of respite, and requested leave, he was instead transferred by his C.O. to a BE squadron (#8). From one account, it was as if the C.O. was punishing Ball; on the other hand, maybe the C.O. thought that observation duty was less stressful than scouting?
*Another instance was
Roy Brown, who, if memory serves, refused to go on leave, literally flying until he dropped, after having passed out at the controls and almost getting killed in the ensuing crash. Even at the time of his fabled encounter with MvR, he was subsisting on a diet (if you could call it that) of milk and brandy (I kid you not!). "Brownie"
was an iron man!
*One last point? Concerning the mutinies in the French Army in 1917, one of the bones of contention was a more equitable granting of leave...
VBR,
Captain Lewis
*