Bill, Yes Rob is going to have to get new call letters. It's excellent that the owner will fly it into Canada for him. It's a real problem if it's from 1 of the Southern States and a Canadian buys it,, only we can't fly a US registered airplane,, so it's nice the owner will fly it over into Canada before cancellation of the resgistration. As well to answer your question, yes Rob can get the next available call letters,, of for extra money,, he can pick his own call letters
