Yes Google is a wonderful thing, and since a Google search did not reveal any UK format designation, only the US "MQ-9A" and the name "Reaper" I thought I'd ask somewhere where people might actually come into contact with the thing. My apologies for thinking I could get an answer from this forum that didnt involve a condescending a$$hole or two chiming in.
I hope none of you ever have a question about the airline business.
To the other responders, thank you.