It was fifty years or so ago now. I cannot warrant hearing this myself, but it was told as true of an officer who had some trouble, was about to ditch, did ditch, and was, happily, picked up by the chopper soon after.
Oh Yes, he had a stammer, and his entire distress call ran: "A-, A-, A-, A-fu--, A-fu--, A-fu--, A-fu-k". It was long enough for a fix.