Quantcast Wind correction (crabbing) - P-12820151

 

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T-45C TS INav-05
TACAN/VOR Navigation and Holding Procedures
b. Visualize HSI as compass rose with station at center
c. Picture fix having greater distance from station on its
radial at outside edge of compass card
d. Visualize second fix at proportional distance from
center of compass card on its radial
e. Connect two fixes with an imaginary line
f. Move line to center of compass card parallel to
original line and read course to the new fix off
compass card
g. Turn to new course (plus wind correction if known);
top of imaginary line where it crosses compass card
h. Update course and make corrections periodically to
point-to-point heading
C. Wind correction (crabbing) 2.7.5.1.8.2
NOTE: Tailwinds and headwinds affect ground speed only.
1. Used to maintain radial/bearing via tracking into wind
(maintaining a constant track over the ground)
2. Crab angle (heading differential)
a. Correct: aircraft maintains desired course
b. Insufficient: aircraft continues to drift with wind
c. Too large: aircraft crosses radial
3. Procedure
a. Confirm drift due to crosswind by referencing CDI
b. Compensate by turning aircraft back to reintercept
desired radial
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(2-02) Original


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