For me it would have to be a Hawker Hunter TMk8. The first aircraft of any type that I ever flew in. From RNAS Yeovilton in 1977. Pilot Brian Grant. From Yeovilton over Devon and Cornwall and the Scillies to RV with the Cruiser HMS Blake in the Western approaches. She was just out of refit, - to assist in Radar calibration. That was a hell of a first flight!
TF