Engineer...
Capital E. Said JNCO already had his HNC, went on to complete his degree and now has the right to put IEng after his name. In fact if it wasn't for the fact that he's still serving (teaching at Cosford) he'd be able to put CEng after his name.
Flightester ex DF
Maybe DF's are just smarter than your average engineer? Ducks down below the wall