Complex sentence: The establishment of Officers, WOs, SNCOs (Non-Commissioned Officers) and cadet NCOs is dependent on the size of the squadron or detached flight and this basic structure has many permutations--varying with the number of cadets and staff, accommodation and facilities.
Split into simpler sentences: The establishment of Officers, WOs, SNCOs (Non-Commissioned Officers) and cadet NCOs is dependent on the size of the Squadron or DF. This basic structure has many permutations-varying numbers of cadets and staff, accommodation and facilities.