ANATOMY OF THE VOR INDICATOR OBS (omni-bearing selector) —Selects the desired radial Degree markers — Indicates how many degrees the airplane is off the radial OBS knob— Tunes the OBS 33 30 N 3 TO 12 15 S W 2 To/From flag— Indicates tracking to or away the VOR 1 24 W 30 33 N » 24 OBS S 1. Starting position 1 24 21 21 21 21 V OBS OBS PUSH 24 21 270º 270 W 24 21 s N A V 15 30 2 270° 33 270º S 21 S N A V 21 21 15 15 24 15 S OBS 21 270º 270º 24 15 S 24 N A V 21 15 15 OBS A V OBS 290º 270º 4 PUSH 24 21 21 33 TO N A V 24 21 15 S 12 24 24 W 33 N 30 W 15 30 N A V 33 TO OBS 15 S 21 3 24 W 21 12 E 15 6 21 N A V 290º 245º 24 S 21 21 OBS OBS 290º 290 15 s S N A V 290° 15 12 E S 290º 290º 12 21 12 E 5 TO 15 E OBS 180º 180º Be careful not to confuse radial with heading. Radials emanate out from the station. If you are flying away from the station, you are tracking and flying on the same radial. But if you are flying to the station and tracking the radial on the opposite side, look to the bottom of the heading indicator for the radial you are actually on. 180º N 3 OBS PUSH PUSH 180º JUNE 2011 FLIGHT TRAINING 33 N 3 33 33 N RADIAL CONFUSION 30 FR 6 6 FR 6 6 E 5 12 S 21 24 N A V E OBS PUSH 180º 180º PUSH 290º 21 24 TO 15 S E 12 15 110 ° 15 N E 12 3 15 FR PUSH FR S 33 4 24 V E A A V 24 TO E 24 N W 45° 33 OBS N N 3 33 4 3 21 21 6 TO W 30 3 3 180º FR 6 21 24 N 33 W 30 3 3 N 3 5 33 W 12 TO PUSH 180º N 30 33 3 290 30 12 21 24 W 3 0 245° FR 6 E 290º S 4. N OBS PUSH 12 245º 12 OBS PUSH 5 sS 15 E 290º 290º 3 FR 6 15 S 12 E 15 3 FR OBS PUSH E 12 E 15 3 21 FR 290º S N A V E W A V 4 PUSH 21 24 TO 15 12 15 30 24 N TO 290º S E 15 W 24 30 33 W 30 3 3 N FR S 290º 270º 21 21 12 OBS PUSH E 290º 5° 24 N 3 1 26 245º 24 3. 3 6 E 12 15 12 6 6 E E 12 FR S PUSH FR 3 S 2 TO 24 24 21 W 33 TO OBS N A V W 30 24 290º 21 6 E E 15 2 21 12 21 FR W 12 33 W 30 3 33 N 30 30 N E W 30 A V 15 TO PUSH 245º 33 TO W 30 3 3 N 6 E N 21 24 3 W 33 21 24 W FR 12 30 270º E OBS PUSH 290º 3 270º PUSH 270º 6 E 12 6 12 6 E 12 FR OBS 15 15 PUSH FR 6 E 12 S 1 21 TO W 3 0 24 33 24 21 30 N A V OBS E 12 15 1 15 TO 24 W 3 0 S FR W 290 30 N A V 12 24 30 2 33 s 290º E 21 W TO W PUSH 270º 270° 33 TO 21 24 W 6 E 12 15 24 W 30 33 6 E 12 FR 15 2. Select your final position 270º 270º 15 S W E 1 30 N A V TO FR 6 12 A TO PUSH 33 24 W 30 33 E N 6 12 24 33 15 30 15 W S 3 6 E 6 12 E FR CDI (course deviation indicator) —Acts as a course line indicating PUSH relative position of radial EACH DEGREE OR RADIAL IS 1 NM WIDE WHEN 60 NM FROM THE VOR. 6 E 24 12 15 21 W N A V 30 TO 24 33 W 3 0 33 S FR N N 3 W 3 0 3 33 S N N 3 3 N 3 N 3 S 6 N 3 N 33 33 3 S 33 6 E E E N E 12 12 12 3 15 15 15 S N N 3 6 S N N 3 3 3 30 N 3 33 N S 6 30 N 3 33 N N 3 33 N S 6 N 3 3 S S S 3 S 6 6 N 3 3 S 12 6 6 N 3 6 3 1 26 30 S 6 N 3 33 N S 6 W 30 W 3 0 24 W 30 N N 3 6 3 3 1 26 S 6 24 W W 3 0 W 30 W 3 0 / 37