Most RN Squadron Linebooks are along the lines that you're after and are generally donated by a sponsor like Rolls Royce or Marconi or the like. If you can think of a major PLC that the UAS (or University) is associated with, a letter from the CO could work. It might also be the start of a sponsored trophy or the like. If you already have a sponsor for , say, the aero's trophy, then write to them.