INTERCEPT PROCEDURES TEXTBOOK
Abbreviated LAST DITCH
Assessed Drift rate per nm
Don't get bogged down in the weeds here. Realistically, with only two miles to analyze, the
bogey will not drift at all, drift only one degree, or drift really fast. Applying headwork, one
isolated degree of drift can realistically relate to 0.5º/nm. If the bogey is off to the races,
1-2 degrees/nm will be call for a large TA adjustment by at lest 20º.