Page:Iran Air Flight 655 investigation.djvu/50

 (IO Exhibits 91, 176).

(4) Alert Doctrine

U (a)  ARC Air Warning 1 — will give an alert for inbound air tracks at ranges from 45 to 55 miles and altitudes 0 to 90,000 feet. (IO Exhibit 176).

U (b)  ARC Air Warning 2 — will give an alert for inbound air tracks at ranges from 15 to 30 miles. (IO Exhibit 176).

U (c)  SSWC Surface Warning 1 — will give an alert for an inbound surface track at a range of 15 to 25 miles with a predicted closest point of approach of 0 to 4 miles. (IO Exhibit 176).

U (d)  SSWC Surface Warning 2 — will give an alert for an inbound surface track at a range of 5 to 15 miles with a predicted closest point of approach of 0 to 2 miles. (IO Exhibit 176).

U (e)  No target tripped the Alert Doctrine during the engagement period. (IO Exhibit 91).

(5) Drop Track Doctrine Activated

(a)   (IO Exhibit 176). (b)   (IO Exhibit 176).

U (6)  SPY-1 Doctrine

Search Elevation = 0-16 deg

Power = high 261-097 deg

= low 097-261 deg

Sensitivity = auto

Manual MTI = 0-64 NM

Freq Mode = fixed

Low Elevation MTI TRK (Ducting) = off

Auto Roll In = off

Cover Pulse Detection Blanking = on

(IO Exhibit 91, 176).