How did Air Ministry advice shape naval air defense?

How far did Air Ministry control affect Royal Navy anti-aircraft planning?

It shaped the threat model: naval proposals had to consult an Air Ministry that emphasized level bombers and torpedo bombers, assumptions reflected in HACS development.

Air Ministry influence extended beyond control of naval aviation and pilot training. Royal Navy bids for anti-aircraft weapons required consultation with the ministry as the recognized air authority. Its advice continued to emphasize high-level bombing and low, fixed-altitude torpedo attacks until about 1938. Those assumptions help explain the engagement geometry and priorities built into the High Angle Control System.