Building Lateral Separation in the Intercept

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INTERCEPT PROCEDURES TEXTBOOK
005°, with the bogeyoff CB at 30 nm. Bogey bearing is 10° off CB at 15 nm. TA will
increasedegrees (from 10°R to 15°R).
Example #2
BH = 180º
BB = 010º
TA = 10ºR
CH = 020º
355º with the bogey 15º off CB at 30 nm. Bogey bearing at 15 nm will be 025º. TA will
increase 15º (from 10ºR @ 30 nm to 25ºR @ 15 nm).
Example #3
BH = 180º
BB = 010º
TA = 10ºR
CH = 020º
Fighter steadies on a heading of 060º (40º from CH). New collision bearing is 030º with the
bogey 20º off CB at 30 nm. Bogey bearing at 15 nm will be 350º. TA will change 20º in 15 nm
(from 10ºR to 10ºL).
Building Lateral Separation in the Intercept
It is important to recognize LS goals before they occur. Using the formula LS = TA X SR X
100, compute the LS off of GCI calls or a contact on the scope, and reconvert if necessary.
Continued analysis throughout the intercept will be required to monitor LS. The key to staying
on top of LS growth is calculating it early on into the intercept and keeping an eye on it as it
continues to grow. Unlike TA, which changes exponentially as range decreases, LS grows at a
constant rate with range if the same heading is maintained. The fighter should (in area I, II, and
III problems) calculate LS once they have rolled out on their initial cut (based upon the
gameplan) in use, using the TA and range derived from either GCI calls or scope analysis.
From that point, the fighter can monitor LS and get a feel for how quickly the LS goal is
being reached.
Because time is critical, round off numbers so they are easier to multiply.
For example: 19º TA x 21 nm =̃ 40K
Remember, LS goals also apply to a TA problem since TA at Fox-1 range determines our
available LS.
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