What is the name for yaw pitch and roll all together ?
I've heard CMD used to refer to all of that information but don't know what it stands for.
Is CMD correct? if so what does it stand for? is there some other word?
Pitch, roll and yaw are rotation angles relative to the earth gravitational field. In order to fully describe the state of an unrestrained rigid body in space, there are six Degrees of Freedom required. This site states it as follows:
4.1.2 Degrees of Freedom of a Rigid Body in Space
An unrestrained rigid body in space has six degrees of freedom: three translating motions along the x, y and z axes and three rotary motions around the x, y and z axes respectively.
The three linear co-ordinates determine the position of a reference point, usually the Centre of Gravity. The three rotary co-ordinates determine the orientation of the body, relative to the chosen axes.
So pitch, roll and yaw are the three rotational degrees of freedom of a rigid unrestrained body in space, determining the attitude of the body.
What is the name for yaw, pitch and roll together?
Depending upon which of the maneuvers of the Lomcovak family the pilot chooses to perform ...
The aircraft will rotate on all three axes and perform three end-over-end negative "g" tumbles, each tumble being at about 45° to the plane of the last. (Main Lomcovak).
This amounts to changing pitch, yaw, and roll simultaneously. The illustration of the three planes offered by Koyovis should help visualize what is being done.
This maneuver can be rough on various structures in the aircraft, and for a pilot not well practiced in aerobatics can be very disorienting. Don't try this unless you know what you are doing, and are in a suitably built aircraft.