T-45C TS & ADV CO-09; IUT CO-05
Velocity Vector
e.
Exact azimuth point at which the HUD
Sg 3, fr 6
pitch climb/dive reference becomes
invalid due to rotation is ambiguous
LESSON NOTES
With wings level when a limited velocity vector is
LIMITED VELOCITY VECTOR --
displayed at the far left or right side of the HUD, versus
POSSIBLE PITCH LADDER ROTATION
at the bottom or top, HUD pitch-ladder rotation is not a
factor, only lateral displacement of the velocity vector.
However, at some point between the 90 to 180 and
180 to 270 degree azimuth positions, pitch ladder
rotation commences. That exact azimuth point is
ambiguous and dependent upon variable AOA, drift,
and side-slip factors. As a general rule do not trust the
HUD climb/dive pitch indications when the velocity
vector is flashing (limited): CHECK THE ADI for
aircraft pitch.
IV. Uncaged and Caged 1.9.3.1.5
Sg 4, fr 1
HUD VELOCITY VECTOR
A. Uncaged option
PROCEDURES
1.
DEFINED: The True velocity vector may
* Aircraft Movement Versus
displace anywhere within the velocity vector
Heading
display limits for yaw/drift/AOA effects
* Velocity Vector Relationship
to Aircraft Waterline
a.
Vertical (down): 11.13 degrees
* Display Limits
positive (+) AOA
* Uncaged and Caged
* HUD Modes
b.
Vertical (up): 3.03 degrees negative (-)
* Pilot Techniques
AOA
c.
Azimuth (left/right): 7 degrees drift
and/or slip
(10-99) Original
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