Definition
A definite, established pitch and bank attitude that the pilot selects on the attitude indicator and actively flies the aircraft to, rather than letting the attitude drift while reacting to other instruments. In a descent, it means choosing a specific nose-down pitch attitude on the attitude indicator and holding the aircraft on that attitude as the primary control reference.
Plain English
Pick a clear, specific aircraft attitude on your attitude indicator and fly the airplane to hold exactly that picture, instead of just chasing the altimeter, airspeed, or vertical speed needles.
Context Anchor
Seen in instrument flying when setting up and controlling a straight descent without outside visual references.
Derivation
Positive' here is used in the sense of 'definite' or 'firmly established' (from Latin positivus, 'settled, fixed'), not 'good' or 'optimistic.' A positive attitude reference is one that is clearly chosen and firmly held, not vague or drifting.
Why Pilots Care
It allows precise descent control and prevents uncontrolled changes in airspeed or rate that could lead to unstable approaches or altitude busts.
Intuition Check
Do not read positive as “good” or attitude as “mood.” Here, positive means definite, and attitude means the airplane’s nose-and-wing position relative to the horizon.
Example Sentence 1
Before starting the descent, the pilot established a positive attitude reference by lowering the nose to a specific pitch on the attitude indicator and holding it there.
Example Sentence 2
Maintaining the positive attitude reference kept the airspeed stable throughout the instrument descent.