Aviation

Aviation, or air transport, refers to the activities surrounding mechanical flight and the aircraft industry. Discussion on this topic revolves around the assertion that aircraft instrumentation are built to assume, and pilots are taught to fly, over a flat, non-rotating earth.

Royal Air Force College
Taking wrong directions would obviously have dire consequences when flying supersonic in a combat jet, therefore the Royal Air Force teaches their pilots the “real thing”. From the Aug 16, 1979 issue of New Scientist (Archive) we read on p.543:

Earthly

—Darcy Pettyhoff, Royal Air Force College

Pilot's Study Guide
A pilot's study guide from aerostudents.com says that a flat, non-rotating earth is assumed (Archive).

See section 1.1.2: