Which of the following is NOT a Squadrons under OACTU?

The selection of E Squadron as the correct answer hinges on understanding the structure and designation of the squadrons within the Officer and Aircrew Cadet Training Unit (OACTU). A Squadron, B Squadron, and C Squadron are standard designations that are recognized as part of the OACTU framework, focusing on training and preparing cadets for their future roles in the Royal Air Force.

E Squadron, however, does not exist within this specific context. This makes it distinct from the other options, which are all foundational components of the training regimen within OACTU. Recognizing the composition and assignments of squadrons is vital for understanding how the RAF organizes its training units and the types of specific training each squadron focuses on.