RAF Royal Air Force Panavia Tornado Rolls Royce RB199 jet engine blade vane. These have flown at twice the speed of sound in the hot side of the engine so they she extensive heat wear patina adding to their character. This is a great chance to own a piece of flown aviation history and they make great aviation gifts and stocking fillers! Approximately 8.7cm in length and each one comes in the white MOD storage box as pictured.