Writes welcoming him to RAF. States he has been selected for aircrew training. Continues with mention of waiting lists to start and a little about the RAF and why he would have to wait to start training.
Welcome letter congratulating recipient on being selected for aircrew training with immediate entry. Goes on to exhort recipient to keep fit and that the honour of the Royal Air Force is in recipient hands.
Welcome to the Royal Air Force and that selection for aircrew training is a great distinction. Explains how waiting list works and explains why he will have to wait. Encourages him to keep fit while waiting and to carry on with current job.