I have an idea! If pilots stopped applying for jobs when they don't meet the requirements, sending CV's when they are not asked for, or turning up without an appointment for a chat then maybe the people dealing with the applications would have enough time to reply. Alternatively they could knock a few grand off the salary on offer so that someone could be employed to send "thanks, but no thanks emails".
You think you are doing someone some sort of favour by sending your CV? It's not a sodding dinner party, don't expect thank you letters.