Complex sentence: From 1995 to 1996, the Duke was posted as Senior Pilot of 815 Naval Air Squadron then the largest flying unit in the Fleet Air Arm his main role in that position being to supervise flying standards and to guarantee an effective operational capability.
Split into simpler sentences: From 1995 to 1996, the Duke was posted as Senior Pilot of 815 Naval Air Squadron then the largest flying unit in the Fleet Air Arm. His main responsibility was to supervise flying standards and to guarantee an effective operational capability.