the frame that shares the intertial frame origin but rotates with the earth
What is ECEF
100
the angular velocity vector that contains P , Q , and R gyro outputs?
What is omega b/i
100
Derivates relative to this frame are required for forces and moments to be used in equations.
What is Ci ?
100
sigma plus j omega are the real and imaginary parts of this mathematical variable.
What is complex variable s?
100
Math tools, static stability analysis (will it fly?), and dynamic stability analysis (will it fly well?)
What are the three parts of aero 420?
200
the reference frame carried with the aircraft that points to North East and Down (NED)
What is Cv
200
the reference frame, along with Cv, that defines situational awareness
What is Cb
200
The theorem that states external moments result from the rate of change of angular momentum with respect to inertial space
What is the Mechanics Theorem?
200
This plot starts at the open-loop poles and ends at the open-loop zeros
What is the root locus
200
This reference to hearing Defines positive Beta, or positive sideslip.
What is "wind in the right ear"?
300
the reference frame in the aircraft's vertical plane that defines angle of attack relative to the body ib axis
What is Cs
300
the euler angle rotation sequence using numbers?
What is 3-2-1
300
the mathematical relationship that describes derivatives with respect to rotating reference systems
What is Coriolis Theorem
300
This property of a system is defined by a 3 db loss in magnitude as frequency is increased.
What is bandwidth?
300
This is the greek letter for flight path angle.
What is gamma?
400
the reference frame not necessarily in the aircraft's vertical plane whose i-axis points along the aircraft's velocity vector with respect to the earth
What is Ca
400
The mathematical name for the four-parameter set of direction cosines and rotation angle that prevents gimbal lock when theta is plus or minus 90 degrees.
What is a quaternion
400
Gravitational force must be corrected by this double cross product to produce local plumb-bob gravity.
What is omega cross omega cross Rcm/io
400
A stable system of this type will follow a step with zero error and a ramp with finite error.
What is a type one system?
400
This causes the Kvo axis to not point at the center of the earth for a satellite in orbit.
What is eccentricity?
500
the axis that defines the rotation required to define pitch angle theta
What is j2
500
the rotation of north and east vectors as a vehicle flies across earth's surface
What is craft rate
500
Integrating dbdt Vk solves this equation used for navigation across earth's surface.
What is the Fundamental Equation of Navigation
500
When the time delay reaches this value, the closed-loop system will lose all of its phase margin.
What is delay margin?
500
This is considered the optimal inclination angle (in degrees)of a satellite's orbit with respect to the equatorial plane?