This is not an attempt to wind anyone up and especially as I am nowhere near the point of sending any CV's off to potential employers and therefore cant comment or profess.
But in the future, would it be wise to hold off sending CV's to the some of the airlines? Instead of bombarding them, biding your time until they are more likely to give a positive response. I would just worry that if I fired off a CV to every airline during a recession, I would have burnt all of my bridges and when the hiring time returns, I will already be faced with a rejection letter and a history with the potential employers personnel department. Or perhaps this is a favorable method as they will see you as a keener potential employee?